190806_amu_e_specs.pdf

TECHNICAL SPECIFICATIONS of the

GENERAL ELECTRICAL WORKS for the

A Proposed Mixed-Use Development Matumbo Road, Lapu-Lapu, Mactan Island, Cebu

Prepared for:

SHOGUN MANAGEMENT DEVELOPMENT CORPORATION

and

ARCHIGLOBAL, INC.

Prepared by:

 

SECTION 26 00 00

:

ELECTRICAL SPECIFICATIONS INDEX

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1.

Section 26-05-00

:

General Electrical Works – Common Work Results

2.

Section 26-05-19

:

Low-Voltage Wires & Cables

3.

Section 26-05-26

:

Grounding and Bonding

4.

Section 26-05-33

:

Raceways and Boxes for Electrical System

5.

Section 26-05-36

:

Cable Tray System for Electrical System

6.

Section 26-05-48

:

Vibration Isolation and Seismic Control

7.

Section 26-08-00

:

Electrical Testing and Inspection

8.

Section 26-23-00

:

Low-Voltage Switchgear and Accessories

9.

Section 26-24-16

:

Electrical Panelboards

10.

Section 26-27-26

:

Wiring Devices ( Switches and Outlets )

11.

Section 26-32-13

:

Engine – Generator Sets, Synchronizing Panel and Accessories

12.

Section 26-36-32

:

Automatic Transfer Switches

13.

Section 26-41-00

:

Lightning Protection System.

14.

Section 26-50-00

:

General Lighting System.

- END OF SECTION -

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SECTION 26 05 00

:

GENERAL ELECTRICAL WORKS – COMMON WORK RESULTS

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Part 1 -

GENERAL CONDITIONS : The work under this Section shall be subject to the requirements of the General Conditions, which shall be included as part of this Specifications and which shall apply to all work to be performed under the Electrical Division. The contract documents, instructions, drawings and specifications shall be considered as one. Whatever is called for by any of the documents shall be binding as if called for by all.

1.1

GENERAL DESCRIPTION : The work to be done under this Division of the Specifications consists of the fabrication, furnishing, delivery and installation, complete in all detail of the Electrical Work at the subject premises and all work materials incidental to the proper completion of the projects, except those portion of the work which are expressly stated to be done by others. All work shall be in accordance with the governing Codes and Regulations and with the Specifications, except where some shall conflict with codes, etc., which the latter shall then govern. The requirements in regard to materials and workmanship specify the required standard for the furnishing of all labor, materials and appliances necessary for the complete installation of the work specified herein and indicated on the drawings. These specifications are intended to provide a broad outline of the required equipment, but are not intended to include all details of the design and construction.

1.2

WORK INCLUDED : Under this Division and together with the specifications, provide all materials and equipment and perform all the work necessary for the complete execution of the electrical systems shown on the electrical drawings with reference to the general construction drawings as herein specified, or both except as otherwise excluding the generality of the foregoing, shall include but not limited to the following principal items of work :

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a.

Supply and installation of complete power, telephone and CATV system services.

b.

Supply and installation of complete electrical and auxiliary works at the lower ground floor to 6th floor level and roof deck level as shown in the electrical plans.

c.

Supply and installation of complete telecommunications fiber optic cable, cat. 5e or cat. 6 data-grade cabling and conduiting system, including the common main distribution frame and telephone terminal cabinets as shown in the electrical plans.

d.

Supply and installation of complete CATV RG-6 and RG-11 coaxial cables and conduiting system, including the CATV headend equipment as shown on the electrical plans.

e.

Supply and installation of the fire detectors and alarm devices, including the analogue-addressable type fire alarm control panel for a complete fire detection and alarm system as shown on the electrical plans.

f.

Supply and installation of complete background music/public address system as shown on the electrical plans.

g.

Supply and installation of complete CCTV camera monitoring system as shown on the electrical plans.

h.

Supply and installation of complete lightning protection and grounding system as shown on the electrical plans.

i.

Supply and installation of low-voltage switchgears, main distribution panels, automatic power factor corrector capacitor banks and motor control centers as shown on the electrical plans.

j.

Supply and installation of plug-in type busduct riser system as shown on the electrical plans.

k.

Supply and installation of branch cabling riser system as shown on the electrical plans.

l.

Supply and installation of panelboards, disconnect switches, enclosed circuit breakers and magnetic starters as shown on the plans.

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1.3

m.

Supply and installation of complete power and control wiring to various mechanical and sanitary equipment unless otherwise specified.

n.

Supply and installation of standard and special lighting fixtures, including exit lights and battery-operated emergency lights, as specified by the Architect.

o.

Supply and installation of wiring devices and accessories.

p.

Supply and installation of electronic digital KWHr meters for normal and emergency power.

q.

Painting of all exposed electrical conduits, enclosures and equipment.

r.

Termination of all electrical system.

s.

Complete testing and commissioning of all electrical lighting, power and auxiliary systems.

t.

Securing and payment of electrical wiring permit and certificate of electrical inspection.

u.

Application and securing the approval for the electrical power, telephone and CATV service connections including the preparation of the necessary plans, forms and related documents, payments of fees and charges and coordination with the involved parties and other authorities or persons involved in the procedures.

v.

If anything has been omitted for any items of work or materials usually furnished, which are necessary for the completion of the entire work as outlined herein before, then such items must be and hereby included in this division of work.

WORK EXCLUDED : The supply and installation of the following equipment and devices shall not be included in the Scope of Works by the Electrical Contractor, subject to the Owner’s confirmation: a.

Primary metering room equipment, recloser and required accessories (by MECO).

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b. Distribution-type transformers and accessories (option to be supplied by Owner/Developer). c. Engine-generator sets, synchronization panel and accessories (option to be supplied by Owner/Developer).

1.4

1.5

CODES, INSPECTIONS, PERMITS and FEES: a.

The work under this Contract is to install according to the requirements of the latest Philippine Electrical Code, the rules and regulations of the City Government of Lapu-Lapu and the requirements of the local power and telecommunications utility companies. Nothing contained in these specifications or shown on the drawings shall be construed as to conflict with the national and local ordinances or laws governing the installation of the electrical work and all such laws and ordinances are hereby made part of these specifications. The Contractor is required to meet the requirements thereof.

b.

All permits and electrical fees required for this work shall be obtained by and at the expense of the Contractor. The Contractor shall furnish the Architect / Engineer and the Owner / Developer the final certificate of inspection and approval from the proper government authorities after the completion of the work. The contractor shall prepare all “As-built” electrical plans and all paperwork required by the approving authorities having jurisdiction.

COORDINATION OF THE WORK: a.

Certain materials will be provided by other trades. Examine the Contract Documents to ascertain these requirements.

b.

Carefully check space requirements with other trades and the physical confines of the area to ensure that all material can be installed in the spaces allotted thereto. Make modifications thereto as required and approved.

c.

Transmit to other trades all information required for work to be provided under their respective Sections in ample time for installation.

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d.

Wherever work interconnects with works of other trades, coordinate with other trades to ensure that all trades have the information necessary so that they may properly install all the necessary connections and equipment. Identify all items of work that may require access doors and panels so that the other trades concern will know where to install them.

e.

Coordinate, project and schedule work with other trades in accordance with the construction sequence.

f.

The plans and drawings show only the general run of raceways and approximate correct location of outlets and devices, but it is to be understood however that the small scale drawings are necessarily diagrammatic and that such locations as shown, are subject to slight revision as the work is installed, which may be necessary to accommodate local jobsite construction conditions. Any significant changes in the location of the outlets, cabinets, etc., necessary in order to meet jobsite field conditions shall be brought to the immediate attention of the Architect / Engineer and shall receive his approval before such alterations are made. All such modifications shall be made without additional cost to the Owner / Developer.

g.

Obtain from the Architect / Engineer in the field the location of such outlets, device or equipment not definitely located on the plans or drawings.

h.

Circuit “tags” in the form of arrows are used where shown to indicate the circuit homeruns of raceways to electrical distribution panels. These tags show the circuit homerun and the panel designation. Show the actual circuit numbers on the finished record drawings and on the panel directory card. Where circuiting is not indicated, the Electrical Contractor must provide required circuiting in accordance with the loading indicated on the plans and drawings and/or as directed.

i.

Adjust the location of conduits, panels, equipment, pullboxes, fixtures, devices, etc., to accommodate the work to prevent interferences, both anticipated and encountered. Determine the exact route and location of each raceway prior to fabrication.

j.

Wherever the work is of sufficient complexity, prepare additional detail drawings to scale similar to that of the Contract Drawings. With these layouts, coordinate the work with the work of other

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trades. Submit, for review, drawings clearly showing the work and its relation to the work of other trades before commencing shop fabrication or erection in the field.

1.6

k.

Coordinate with the local Electric utility company and the local Telecoms company as to their requirements for service connections and provide all the necessary materials, labor and testing.

m.

Coordinate with Contractors for work under other Divisions of this specification for all work necessary to accomplish this Contractor’s work.

EXAMINATION OF SITE : a.

1.7

PROGRESS OF WORK : a.

1.8

Prior to the submission of bids, the Contractor shall visit the site of the job and shall familiarize himself will all conditions affecting the proposed installation and shall make provisions as to the cost thereof. Failure to comply with the intent of this paragraph will in no way relieve the Contractor of performing all necessary work shown on the electrical plans and drawings.

The Contractor shall order the progress of his work to conform to the progress of the work of other trades and shall complete the entire installation as soon as the conditions of the jobsite or the building will permit. Any cost resulting from the defective or ill-timed work performed under this Section shall be borne by the Contractor.

DELIVERY, STORAGE AND HANDLING : a.

Ship and store all products and materials in a manner that will protect them from damage, weather and entry of debris. If items are damaged, do not install, but take immediate steps to obtain replacement or repair. Any such repairs shall be subject to the review and acceptance of the Architect / Engineer.

b.

Deliver materials in manufacturer’s unopened container fully identified with the manufacturer’s name, trade name, type, class, grade, size and color.

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c.

1.9

1.10

EQUIPMENT ACCESSORIES : a.

Provide hangers, supports and auxiliary structural members required for the support of work.

b.

Furnish and set all sleeves for passages of raceways through structural, masonry and concrete walls, floors and elsewhere as will be required for the proper protection of each raceway passing through building surfaces.

c.

Wall-mounted equipment may be directly secured to wall by means of steel bolts. Maintain at least 25mm air space between equipment and supporting wall. Groups or arrays of equipment may be mounted on adequately sized steel angles, channels, or bars. Prefabricated steel channels providing a higher degree of mounting flexibility, such as those manufactured by Kindorf, Unistrut, Eristrut and Hilti, may be used for mounting arrays of equipment.

SUBCONTRACTS, etc. : a.

1.11

Store materials suitably sheltered from the elements, but readily accessible for inspection by the Architect / Engineer until installed. Store all items subject to moisture damage in dry, heated spaces.

The Contractor shall be held fully responsible for the work of any subcontractors or manufacturer performing work or supplying materials, as it is intended that the entire electrical work, when finally delivered to the Owner, shall be ready in every respect for satisfactory and efficient operation.

WORKMANSHIP: a.

The work throughout shall be executed in the best and through manner under the direction of and to the satisfaction of the Architect / Engineer, who will jointly interpret the meaning of the drawings and specifications and shall have the power to reject

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any work and materials, which in their judgement are not in full accordance therewith. b.

1.12

The Contractor shall have in his file, for ready access and reference, a set of drawings indicating all work as normally installed, incorporating in same all changes and additions. Upon the termination of the Contract, he shall prepare a set of sepia tracings (or CAD electronic copy) indicating thereon the electrical work as actually and finally installed. These sepia tracings (or CAD electronic copy) shall be turned over to the Engineer.

RECORD DRAWINGS : a.

The Contractor shall, during the progress of the work, keep a careful record of all changes where the actual installation differs from that shown on the construction drawings. The Engineer will furnish, at a cost, a complete set of sepia tracings (or CAD electronic file copy) on which the Contractor shall, in a neat and accurate manner will make a complete record of all changes and revisions to the original design, as installed in the completed work. These drawings shall be submitted to the Engineer for his review and approval. After the approval, they shall become the property of the Engineer and the Owner / Developer, and final payment will be withheld from the Contractor until receipt of the approved record drawings.

1.13

GUARANTEES : a.

This Contractor shall guarantee that the entire electrical systems are free from all defective workmanship and materials and will remain so for a period of two (2) years from the date of acceptance of the work.

b.

The Contractor shall indemnify and save harmless the Owner, the Architect and the Engineer from and against all liability for damages arising from injuries or disabilities to persons or damages to property occasioned by any or omission of the Contractor or any of his subcontractors including any and all legal expenses or otherwise, which may be incurred by the

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Owner, the Architect of the Engineer in the defense of any claims, actions, or suit.

Part 2 -

2.1

2.2

PRODUCTS :

STANDARD of MATERIALS : a.

All materials shall be brand new, shall be type-tested by a reputable 3rd party certifying agency, and shall conform with standards of such as Underwriters’ Laboratories (UL), ASME, NEMA, ANSI, IEEE, JIS and IEC Standards, and in every case where such a standard has been established for the particular type of materials in question, and as approved by the local authorities having jurisdiction.

b.

All materials on all systems shall comply with the following specifications, unless noted specifically and all materials when not specified shall be the first-class products and the best of their respective kind.

c.

Samples of any materials shall be submitted for review and approval to the Electrical Engineer.

d.

All equipment capacities, etc. shall be listed for the jobsite operating conditions. All equipment sensitive to altitudes or ambient temperatures shall be derated and method of derating shall be shown in shop drawings.

SUBSTITUTION OF MATERIALS AND EQUIPMENT : a.

All request for substitution of materials or equipment shall be made in writing by the Contractor. Samples of proposed substitute materials or equipment shall be submitted to the Engineer for review whenever they are requested. All bids shall be based only upon the specified materials and equipment, or substitutes that have received written acceptance from the Engineer prior to the bid.

b.

Whenever the words “for approval” or “approved” are used in regard to manufactured specialties, or whenever it is desired a different make or type of apparatus for that specified, submit all information pertinent to the adequacy and adaptability of the

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proposed apparatus, and secure the Engineer’s acceptance before the apparatus is ordered or installed.

2.3

c.

Whenever quantities or a definite make and size of apparatus is specified, the make and size of apparatus which is proposed must conform substantially, in regards to the operating results, to that specified and implied. The same shall apply to important dimensions relating to operation of apparatus in coordination with the rest of the system, or to properly fitting it into the available space conditions. Any substitution of equipment or apparatus shall include all necessary revisions, as required to complete the installation.

d.

Acceptance of all equipment specified or shown in the electrical plans and drawings, or substitutions submitted for that said equipment, will be granted if such equipment, in the opinion of the Engineer, conforms to the performance requirements, space conditions, weight requirements and quality requirements. Any additional construction and design costs incurred as a result of any accepted substitution shall be borne by the Contractor. The opinion and judgement of the Engineer shall be final, conclusive and binding.

SHOP DRAWINGS and SAMPLES : a.

Prepare and submit detailed shop drawings for materials, systems, and equipment as listed herein, including locations and sizes of all openings in walls and floors.

b.

The work described in any shop drawing submission shall be carefully checked for all clearances (including those required for maintenance and servicing), field conditions, maintenance of architectural conditions, and proper coordination with all trades on the job. Each submitted shop drawing shall include a certification that all related job conditions have been checked and that no conflict exists.

c.

All drawings shall be submitted sufficiently in advance of field requirements to allow ample time for checking and resubmittal as may be required. All submittals shall be complete and shall contain all required and detailed information.

d.

Acceptance of any submitted data or shop drawing for material, equipment, apparatus, devices, arrangements, and layout shall

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not relieve the Contractor from the responsibility of furnishing the same of proper dimensions, weight, capacities, sizes, quantity, quality and installation details, to efficiently perform the requirements and intent of the Contract. Such acceptance shall not relieve the Contractor from responsibility for errors, omissions, or inadequacies of any sort on submitted data or shop drawings. e.

Each shop drawing shall contain the following information : 1. 2. 3. 4.

f.

As a minimum, provide submittals and sample cuts on the following items or as may be required by the Engineer : 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.

2.4

Project title. Reference to applicable drawing and specification article. Contractor and supplier identification and contacts. Submittal date.

Raceways, conduits and wires. Wiring devices and plates. Transformers. Low-voltage switchgears. Distribution boards and panelboards. Disconnect switches. Motor control centers. Motor controllers, starters and contactors. Instrumentation and metering equipment. Lighting fixtures and lamp. Special systems – fire alarm, CCTV, intercom, etc.

OPERATIONS AND MAINTENANCE MANUALS : a.

Provide two (2) copies of the operations and maintenance (O&M) manuals in accordance with the Contract Documents. The manuals shall be complete and in the Owner’s hands prior to turn-over and prior to training instruction to operating personnel.

b.

Provide manufacturer’s literature as regularly published by the respective manufacturers for proper preventive and comprehensive maintenance.

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c.

d.

Part 3 -

3.1

Provide O&M manuals including but not limited to the following : 1.

Alphabetical list of all system components, with the contact details (name, address, 24-hour phone number) of the Company responsible for servicing each item during the first year of operation.

2.

Operating instructions for complete system including : normal starting, operating, and shutdown. emergency procedures for fire or failure of major equipment. day and night special procedures, if any.

3.

Maintenance instructions including : proper lubricants and lubricating instructions for each piece of equipment, and date when lubricated. necessary cleaning, replacement and/or adjustment schedule.

4.

Manufacturer’s data for each equipment including : installation instructions. drawings and specifications. parts list, including recommended stocked items. complete wiring diagrams. marked and changed prints locating all concealed parts and all variations from the original system design. test and inspection certificates.

Refer to the individual specifications for any additional O&M Manual requirements.

EXECUTION :

INSTALLATION : a.

All electrical works shall be executed by experienced men under the direct supervision of a full-time licensed Registered Electrical Engineer (REE) or registered Professional Electrical Engineer (PEE) at the jobsite.

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3.2

b.

Use mechanics, technicians and certified electricians skilled in their trade for all works.

c.

All works shall be neatly placed, securely fastened and properly finished. Keep all items protected before and after installation. Clean up all debris.

d.

Follow the manufacturer’s instructions for installing, connecting, and adjusting all equipment. Provide one copy of such instructions to the Architect / Engineer before installing any equipment. Provide a copy of such instructions at the equipment during any work on the equipment. Provide all special supports, connections, wiring, accessories, etc.

e.

Before commencing work, examine all adjoining, underlying, etc., work on which this work is in any way dependent for perfect workmanship and report any condition which prevents performance of first class work. Become thoroughly familiar with actual existing conditions to which connections must be made or which must be changed or altered.

EXCAVATION, TRENCHING AND BACKFILL : a.

Provide excavation for the work. Excavate all materials encountered, to the depths indicated on the plans or drawings or as required. Remove from the site, excavated materials not required or suitable for backfill. Provide grading, as may be necessary, to prevent surface water from flowing into trenches or other excavations. Remove any water accumulating therein. Provide sheeting or shoring as may be necessary for the protection of the work and for the safety of personnel.

b.

Provide trenches of widths necessary for the proper execution of the work. Grade bottom of the trenches accurately to provide uniform bearing and support the work on undisturbed soil at every point along its entire length. Except where rock is encountered, do not excavate below the depth indicated. Where rock excavations are required, excavate rock to a minimum overdepth of 100mm below the trench depths indicated on the plans and drawings or as required. Backfill overdepths in the rock excavation and unauthorized overdepths with loose granular, moist earth, thoroughly machine tamped, to a compaction level of at least 95% to standard protector density or 75% relative density or as specified by the Architect. Whenever

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unstable soil that is incapable of properly supporting the work, as determined by the Architect / Engineer, is encountered in the bottom of the trench, remove soil to a depth required and backfill the trench to the proper grade with coarse sand, fine gravel, or other suitable material. c.

Excavate trenches for utilities to a depth that will provide the following minimum depths of cover from existing grade or from indicated finished grade, whichever is lower, unless otherwise specifically shown : 1. 2. 3.

3.3

Primary electric service : 1200mm minimum. Secondary electric service : 600mm minimum. Telecoms service : 600mm minimum.

d.

Trenches shall not be placed within 3000mm of foundation or soil surfaces which must resist horizontal forces.

e.

Do not backfill trenches until all required tests have been performed and the installation has been observed by the Architect / Engineer. Comply with the requirements of other Sections of these specifications. Backfill shall consist of nonexpansive soil with limited porosity. Deposit in 150mm layers and thoroughly and carefully tamp until the work has a cover of not less than 300mm. Backfill and tamp remainder of trench at 300mm intervals until complete. Uniformly grade the finished surface. Backfill and tamp with compaction at least equal to the surrounding area.

CUTTING, PATCHING AND REPAIRING : a.

The work shall be carefully laid out in advance. Where cutting, channeling, chasing or drilling of floors, walls, partitions, ceilings or other surfaces is necessary for the proper installation, support or anchorage of raceway, outlets, devices or other equipment, the work shall be carefully done. Any damage to the building, piping, equipment or defaced finished plaster, woodwork, metalwork, etc. shall be repaired by skilled craftsmen of the trades involved at no additional cost to the Owner / Developer.

b.

Where conduits, mounting channels, outlet, junction or pull boxes are mounted on a painted surface, or a surface to be painted, they shall be painted to match the surface. Whenever

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support channels are cut, the bare metal shall be cold galvanized.

3.4

3.5

WATERPROOFING : a.

Avoid, if possible, the penetration of any waterproof membranes such as roofs, machine room floors, basement walls, and the like. If such penetration is necessary, perform it prior to the waterproofing and furnish all sleeves or pitch-pockets required. Advise the Architect / Engineer and obtain written permission before penetrating any waterproof membrane, even where such penetration is shown on the electrical plans and drawings.

b.

If the Contractor penetrates any walls or surfaces after they have been waterproofed, he shall restore the waterproof integrity of that surface as directed by the Architect / Engineer at his own expense.

HAZARDOUS AREAS : a.

3.6

CONCRETE BASES ( PADS ) : a.

3.7

Install all materials and equipment in hazardous areas in a manner acceptable to the regulatory authority having jurisdiction for the Class, Division and Group of hazardous areas indicated.

Construct concrete bases of dimensions, as indicated on the electrical plan or drawings, nut not less than 100mm larger, in both directions, than the supported equipment unit. Follow the supported equipment manufacturer’s anchorage recommendations and setting-out templates for anchor-bolt and tie locations, unless otherwise indicated.

HANGERS AND SUPPORTS INSTALLATION : a.

Provide and install hangers and support devices to securely and permanently fasten and support electrical components work in accordance with the best industry practice.

b.

Provide and install hangers and supports for conduit, raceways, equipment, etc., so that loading will not exceed allowable loadings of the structure. Install individual and multiple raceway

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hangers and riser clamps to support raceways. Provide clamps, c-channels, attachments and other hardware necessary for hanger assemblies and for securing hanger rods and conduits. Hanger supports shall be spaced at a maximum span of 1500mm on-center.

3.8

c.

Support parallel runs of horizontal raceways together on trapeze-type or bracket-type hangers. The size of supports for multiple raceway installations shall provide for an allowance of 20% increased capacity in the future.

d.

Arrange the supports in vertical runs so that the weight of the raceways and enclosed conductors is carried entirely by the raceway supports, with no weight load on the raceway terminals. Simultaneously install vertical conductors supports or grips.

e.

Provide and install supporting frames or racks extending from building structure for work indicated as being supported from walls where the walls are incapable of supporting weight. Supporting frames or racks shall be of standard angle, standard channel or specialty support system steel members and shall be rigidly bolted or welded together and adequately braced to form a substantial structure. Racks shall be of ample size to assure a workmanlike arrangement of all equipment mounted on them.

f.

Provide and install supporting frames or racks for equipment, intended for vertical surface mounting, which is required in a free-standing position.

g.

Nothing (including outlet, pull and junction boxes and fittings), shall depend on electrical conduits, raceways, or cables for supports.

h.

Nothing shall rest on, or depend for support on, suspended ceiling media (tiles, lath, plaster, splines, runners, bars and the like in the plane of the ceiling).

RACEWAY AND CABLE INSTALLATION : a.

Conceal raceways and cables, unless otherwise indicated, within finished walls, ceilings and floors.

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b.

Install raceways and cables at least 150mm away from parallel runs of flues, steam and water pipes. Locate horizontal raceway runs above steam and water piping.

c.

Use temporary raceway caps to prevent moisture, dust and other foreign matter from entering the raceways.

d.

Make conduit bends and offsets so that the interior diameter is not reduced. Keep the legs of bends in the same plane and straight legs of offsets parallel, unless otherwise indicated.

e.

Make conduit bends in exposed parallel or banked runs from same centerline to make the bends parallel. Use factory-made conduit elbows only where elbows can be installed parallel, otherwise provide field-made bends for exposed parallel raceways.

f.

Use raceway and cable fittings compatible with raceways and cables, suitable for use and location.

g.

Install raceways embedded in concrete slabs in middle third of slab thickness where practical, and leave at least a minimum of 25mm concrete cover or topping. 1. 2. 3.

Secure raceways to reinforcing rods to prevent sagging or shifting during concrete pouring. Space raceways laterally to prevent voids in concrete. Transition from PVC non-metallic conduit to EMT/IMC/RSC before rising above the floor.

h.

Install pullwires in empty raceways. Use 2.5sq.mm. zinc-coated steel or monofilament plastic line with not less than 90kg tensile strength. Leave at least 300mm of slack at each end of the pullwire.

i.

Connect motors and equipment subject to vibration, noise transmission, or movement with a maximum of 1800mm length of flexible conduit. Install liquid-tight flexible metallic conduit in wet and damp locations. Install separate ground conductor across flexible connections.

j.

Provide and install pull or junction boxes for maximum length of 30 meters run or with a maximum of four-quarter bends or equivalent.

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k.

3.9

3.10

3.11

Set wall-mounted and floor-mounted boxes level and trim after installation to fit flush to finished surface.

WIRING METHODS FOR POWER, LIGHTING, AND CONTROL CIRCUITS : a.

Normal Feeders : Type THHN/THWN insulated conductors in IMC / RSC raceway.

b.

Emergency System and Life-Safety Feeders : Fire-rated (Cu/Mica/XLPE/LSOH PVC sheath) insulated conductors in cable tray or ladder.

c.

Branch circuits : Type THHN/THWN insulated conductors in EMT / IMC raceway.

d.

Remote-control signaling and power-limited circuits : Type THHN/THWN insulated conductors in raceway for Classes 1, 2, and 3, unless otherwise indicated.

WIRING INSTALLATION : a.

Install splices and taps that are compatible with the conductor material and that possess equivalent or better mechanical strength and insulation ratings than unspliced conductors.

b.

Twistlock-type connectors shall be used in all splicing and connections from 2.0mm.dia (3.5sq.mm.) up to 8.0sq.mm. wires. Use crimping-type lugs and connectors for all other sizes with appropriate dies and hydraulic crimpers.

c.

Install wiring at outlets with at least 200mm of slack conductor at each outlet. Pigtailing of conductors is not permitted.

d.

Connect outlet and component connections to wiring systems and to ground. Tighten all electrical connectors and terminals according to manufacturer’s published torque-tightening values.

IDENTIFICATION MATERIALS AND DEVICES : a.

Coordinate names, abbreviations, colors and other designations used for electrical identification with the corresponding

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designations indicated in the Contract Documents or as required by Codes and Standards. Use consistent designations throughout the project requirements. b.

On each unit of equipment, install unique designation label that is consistent with the wiring diagrams, schedules, and O&M Manual. Apply labels to disconnect switches and protection equipment, central or master units, control panels or stations, terminal cabinets and racks of each system.

c.

Identify raceways and cables with color-banding as required by Codes and Standards. Use consistent designations throughout the project requirements.

d.

Tag and label circuits designated. Identify source and circuit numbers in each cabinet, panelboard, pullbox, junction box, and outlet box. Color-coding may be used for voltage and phase identification

e.

Color-code the 400/230-Volts system conductors throughout the electrical system as follows : 1. 2. 3. 4. 5.

3.12

Phase-A Phase-B Phase-C Neutral Ground

: : : : :

Black Red Yellow White Green

f.

Install continuous underground plastic markers (warning tapes – “ELECTRICAL LINES BURIED BELOW”) during trench backfilling, for exterior underground power, control, signal or communication lines located directly above the said lines. Locate said warning tapes 200mm below the finished grade.

g.

Install warning, caution and instruction signs wherein required to comply with OSHA, and other Codes and Standards, and where needed to ensure safety operation and maintenance of electrical systems and of items to which they connect.

FIRESTOPPING : a.

Apply firestopping to cable and raceway penetrations of firerated wall and floor assemblies to achieve the fire-resistance rating of the assembly.

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3.13

b.

Except as modified by governing codes and by the Contract Documents, comply with the latest applicable provisions and latest recommendations of the following ASTM E814, ASTM E84, ASTM E1399, UL 1479 and UL 2079.

c.

Firestopping materials and installation requirements specified under Division-7 Section “Firestopping”.

INSPECTION : a.

3.14

are

Allow materials, equipment, and workmanship to be inspected at any time by the Architect / Engineer, and or the Owner / Developer or their representatives. Correct work, materials, or equipment not in accordance with these Contract Documents or found to be deficient or defective in a manner satisfactory to the Architect / Engineer.

CLEANING-UP AND TOUCH-UP PAINTING : a.

The Contractor shall take care to avoid accumulation of debris, boxes, crates, etc., resulting from the installation of his work. The Contractor shall remove from the premises each day all debris, boxes, etc., and keep the premises clean.

b.

The Contractor shall clean up all devices, fixtures and equipment at the completion of the project.

c.

All switchboards, panelboards, wireways, trench ducts, cabinets and enclosures shall be thoroughly vacuumed clean prior to energization of equipment and at the completion of the project. Equipment shall be opened for observation of the Architect / Engineer as required.

d.

The Contractor shall touch-up scratches, scrapes, or chips in interior or exterior of devices and equipment with finishes matching as nearly as possible the type, color, consistency, and type of surface of the original finish. If extensive damage is done to equipment paint surfaces, refinish the entire equipment in a manner that provides a finish equal to or better than the factory finish, that meets the requirements of the specifications, and that is acceptable to the Engineer.

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3.15

TESTING EQUIPMENT AND MATERIALS : a.

The Contractor shall provide all testing instruments, equipment and all materials, connections, labor, etc. required to perform tests.

b.

Test all circuits, fixtures, equipment, and systems for proper operation and freedom from grounds, shorts and open circuits before acceptance is requested. Where sequence operation is required, the Contractor shall test for proper sequence and he shall leave the entire electrical installation in satisfactory working condition.

c.

Measure the voltage at power distribution boards, equipment and outlets after the building is occupied. Make the final transformer tap adjustments based on these measurements.

d.

Perform all tests required by local authorities having jurisdiction, such as tests of life safety systems, in addition to tests specified herein.

e.

Perform tests required by other Sections of the specifications.

- END OF SECTION -

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SECTION 26 05 19

:

LOW VOLTAGE CABLES

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

GENERAL :

SUMMARY : This Section includes building wires and cables and associated connectors, splices, and terminations for wiring systems rated 600 V and less.

1.2

1.3

QUALITY ASSURANCE : a.

All wires and cables shall comply with the requirements of the Underwriter’s Laboratories, ASTM and IPCEA as they apply in the particular.

b.

The manufacturer of the wires and cables shall be ISO-9001 : 2008 QMS Certified and approved by the Philippine Bureau of Product Standards (BPS).

c.

All wires and cables shall be listed and labeled as defined in NEC / PEC by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

d.

All wires and cables shall comply with the latest edition of the NFPA-70 (National Electrical Code) and Philippine Electrical Code.

SUBMITTALS DURING CONSTRUCTION : a.

Product data for each type of cable indicated, including splices and terminations for cables and cable accessories.

b.

Sample board of 200mm lengths for each type of cable indicated.

c.

Material certificates for each cable and accessory type.

d.

Source plant quality-control test reports.

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e.

1.4

Field quality-control test reports.

CONDUCTOR COLOR-CODING: a.

Color-code the 400/230-Volts system conductors throughout the electrical system as follows: 1. 2. 3. 4. 5.

Part 2 -

2.1

2.3

Phase-A Phase-B Phase-C Neutral Ground

: : : : :

Black Red Yellow White Green

b.

Grounding conductors of all systems: Green.

c.

Fire-rated (Cu/Mica/XLPE/LSOH outer sheath) insulated conductors for emergency system and life safety loads: Orange.

PRODUCTS:

CONDUCTORS AND CABLES: a.

All wires shall be copper, soft-drawn and annealed, shall be of 99% conductivity, shall be smooth and true and of a cylindrical form and shall be within 1% of the actual size called for.

b.

All conductors shall be solid from 2.0mmØ (AWG#12 solid) up to 5.5sq.mm. (AWG#10) size, and stranded for 8.0sq.mm size and larger. No wire smaller than 2.0mm.dia. solid shall be used.

TYPE THHN / THWN 600-VOLTS BUILDING WIRES: a.

Wires and cables for lightning, power and auxiliary systems shall be PVC-insulated, nylon-jacketed, for 600 Volts working pressure, type THHN/THWN unless otherwise noted.

b.

Maximum conductor temperature does not exceed 90°C in dry and 75°C in wet location.

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c.

2.4

Acceptable manufacturers are Phelps Dodge Philippines, American Wires and Cables (Duraflex), Columbia Wires and Cables, Philflex Wires or approved equal.

FIRE-RATED LOW-SMOKE HALOGEN-FREE CABLES : a.

Wires and cables for emergency systems and life safety loads (including firemen’s lift, fire pump and jockey pump, smoke extraction and pressurization fan feeder) shall be single-core, unarmored, mica-insulated, XLPE-insulated, low-smoke halogen-free sheathed (Cu/Mica/XLPE/LSOH sheath), for 600 / 1000 Volts working pressure, fire-rated cables, unless otherwise noted.

b.

The fire-rated cables shall be type-tested, under B.S. 6387 and SS 299 Part-1 Standards, and shall maintain circuit integrity under fire conditions. 1. 2. 3.

c.

2.5

3.1

tested at 950°C for 3 hours. fire with water spray. fire with mechanical shock.

Acceptable manufacturers are Radox, Leoni Betaflam (Switzerland), Nexans, Phelps Dodge or approved equal.

CONNECTORS AND SPLICES: a.

Part 3-

Category-C : Category-W : Category-Z :

Connectors and splices shall be factory-fabricated, of size, ampacity rating, material, type, and class for application and service as indicated.

EXECUTION: GENERAL: a.

Conceal cables in finished walls, ceilings, and floors, unless otherwise indicated.

b.

Use manufacturer-approved pulling compound or lubricant where necessary. Pulling compound used must not deteriorate the conductor or insulation. Do not exceed manufacturer's

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recommended maximum pulling tensions and sidewall pressure values.

3.2

c.

Use pulling means, including fish tape, cable, rope, and basketweave wire or cable grips that will not damage cables or raceway.

d.

Install exposed cables parallel and perpendicular to surfaces of exposed structural members, and follow surface contours where possible.

e.

Seal around cables penetrating fire-rated elements according to Division-7 Section "Firestopping".

f.

Install outdoor underground feeders in concrete-encased ductbank.

BUILDING WIRES AND CABLES: a.

Provide and install conductor sizes, in designated raceways, as indicated on the electrical plans and drawings.

b.

Fire-rated LSOH cables shall be installed in ventilated cable tray or ladder, based on IEC Method-11 Reference, bundled trefoil configuration.

c.

Install splices and taps that are compatible with the conductor material and that possess equivalent or better mechanical strength and insulation ratings than unspliced conductors.

d.

Twistlock-type connectors shall be used in all splicing and connections from 2.0mm.dia (3.5sq.mm.) up to 8.0sq.mm. wires. Use crimping-type lugs and connectors for all other sizes with appropriate dies and hydraulic crimpers.

e.

Connect outlet and component connections to wiring systems and to ground. Tighten all electrical connectors and terminals according to manufacturer’s published torque-tightening values.

f.

Arrange wiring inside switchgears, cabinets, and electrical equipment neatly cut to proper length. Remove surplus wire and bridle, and secure in an acceptable manner.

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g.

3.3

Where conductors pass through holes and over edges in sheet metal, remove all burrs, chamfer all edges, and install bushings and protective strips of insulating material to protect the conductors.

FIELD TESTS: a.

Perform insulation resistance tests on all power and control circuits below 600 Volts with a 500-Volt Megger tester, applied for 1 minute. Disconnect devices and equipment that might be damaged by this test.

b.

Measure the insulation resistance of each circuit, phase-tophase and phase-to-ground.

c.

Minimum acceptable value for insulation resistance shall be as per NETA and PEC Standards, or as approved by the Engineer.

d.

Prepare a written test report of the results and submit to the Engineer prior to final inspection. Test results that do not comply with requirements shall be provided with the appropriate corrective action to achieve compliance with requirements.

- END OF SECTION -

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SECTION 26 05 26

:

GROUNDING AND BONDING

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

1.2

1.3

GENERAL :

SUMMARY : a.

This Section covers the work necessary to furnish and install electrical grounding and bonding system. Grounding requirements specified in this Section may be supplemented by special requirements of systems described in other Sections.

b.

The terms “connect” and “bond” are used interchangeably in this Section of the specifications and have the same meaning.

QUALITY ASSURANCE : a.

All electrical components, devices and accessories and shall conform to UL 467 standards.

b.

All electrical components, devices and accessories shall be listed and labeled as defined in NEC / PEC by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

SUBMITTALS DURING CONSTRUCTION : a.

Product data and descriptive literature for each type of grounding and bonding system components indicated, including accessories.

b.

Shopdrawings, which includes but is not limited to the following : 1.

Ground well test pit location and detail drawings.

2.

Location of system grounding electrode connections.

3.

Routing of underground and aboveground grounding electrode conductors.

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Part 2 -

2.1

2.2

PRODUCTS :

GROUND RODS : a.

Ground rods shall be copper-clad steel with a diameter of 20mm by 3000mm long, with high-tensile strength properties in compliance to ANSI / NEMA GR-1.

b.

For a longer ground rod requirement, as required by actual site soil or building foundation, ground rods shall be capable of coupling or extensions.

c.

Compression-type or threaded-type couplers, where applicable, shall be used.

d.

Acceptable manufacturers are Erico, Galvan, Kumwell, Furse, Harger or approved equal.

GROUND CONDUCTORS : a.

All grounding wires shall be copper, soft-drawn and annealed, shall be of 99% conductivity, shall be smooth and true and of a cylindrical form and shall be within 1% of the actual size called for.

b.

For ground electrode conductors, underground conductors and main grounding bus, use 100sq.mm. bare copper wire.

c.

For insulated grounding conductors, comply with Section 26-0519 “Wires and Cables”.

d.

For equipment grounding conductors, use type THHN/THWN green-insulated wires and cables, with size as indicated on the electrical plans and drawings.

e.

Copper bonding conductors shall be as follows : 1.

Bonding cable - 100sq.mm. bare copper wire.

2.

Bonding conductor – 25sq.mm. bare copper wire.

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3.

f.

2.3

Provide solid copper ground bars designed for mounting on the framework of open or cabinet-enclosed equipment racks, sized as per the manufacturer’s recommendations.

GROUND TERMINAL BLOCKS : a.

2.6

Pre-drilled bare, annealed solid copper busbars of rectangular cross section with stand-off insulators, with detailed dimensions as shown on the electrical drawings.

EQUIPMENT RACK AND CABINET GROUND BARS : a.

2.5

Acceptable manufacturers are Phelps Dodge Philippines, American Wires and Cables (Duraflex), Columbia Wires and Cables, Philflex Wires and Cables, or approved equal.

GROUNDING BUS BAR : a.

2.4

Bonding jumper – flexible braided copper wires, terminated with copper ferrules, 50mm wide x 1.5mm thick.

At any equipment mounting location (e.g., backboards and hinged cover enclosures) where rack-type ground bars cannot be mounted, provide screw lug-type terminal blocks.

GROUND CONNECTIONS : a.

b.

For below grade connections : 1.

Use exothermic-type welded connectors.

2.

Acceptable manufacturers are Erico, Thermoweld, Furse, Burndy, Harger or approved equal.

For above grade connections : 1.

Use exothermic-type welded structures and equipment.

R. A. MOJICA and PARTNERS A Proposed Storey Mixed-Use Development Technical Specifications

connectors

for

steel

August 2019 Section 26-05-26 3 of 9

Part 3 -

3.1

2.

Use compression-type connectors, utilizing zinc-plated fasteners and external tooth lockwashers for bonding jumpers.

3.

Use two-hole compression-type lugs, utilizing tin-plated copper or copper alloy bolts and nuts for grounding busbars and equipment grounding bars.

EXECUTION :

GENERAL : a.

Grounding shall be as indicated in the electrical plans and drawings, in compliance to the requirements of the NEC / PEC.

b.

System Grounding :

c.

1.

For secondary service neutrals, ground at the supply-side of the secondary disconnecting means and at the related transformers.

2.

For separately derived systems (transformer downstream from the service entrance), ground the secondary neutral.

3.

Isolation transformers and isolated power systems shall not be system grounded.

Equipment Grounding : 1.

Install equipment grounding conductors in all feeders and circuits.

2.

Ground and bond metallic structures, including ductwork and building steel, enclosures, raceways, junction boxes, outlet boxes, cabinets, machine frames, and other conductive items in close proximity with electrical circuits.

3.

Ground shields of any shielded power cable at each splice or termination in accordance with recommendations of the splice or termination kit manufacturer.

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4.

3.2

3.3

Ground metal sheathing and any exposed metal vertical structural elements of buildings. Ground metallic fences enclosing electrical equipment. Bond any metal equipment platforms which support electrical equipment to that equipment. Provide good electrical contact between metal frames and railings supporting pushbutton stations, receptacles, instrument cabinets, etc., and raceways carrying circuits to these devices.

MEDIUM-VOLTAGE EQUIPMENT AND CIRCUITS : a.

For medium-voltage switchgears, provide a bare grounding electrode conductor from the switchgear ground bus to the grounding electrode system.

b.

For ductbanks and manholes, provide an insulated equipment grounding conductor in each duct containing medium-voltage conductors, sized as per NEC / PEC requirement. Bond the equipment grounding conductors to the switchgear ground bus, to all manhole hardware and ground rods, to the cable shielding grounding provisions of medium-voltage cable splices and terminations, and to equipment enclosures.

c.

For pad-mounted transformers, provide a driven ground rod and bond with a grounding electrode conductor to the transformer grounding pad. Ground the secondary neutral.

d.

For lightning arresters, connect to the equipment grounding bus or ground rods as applicable.

SECONDARY LOW-VOLTAGE EQUIPMENT AND CIRCUITS : a.

For switchgear, switchboards, distribution panels, motor control centers and panelboards, engine-generators, and automatic transfer switches, Connect the various feeder equipment grounding conductors to the ground bus in the enclosure with suitable pressure connectors. Provide ground bars, bolted to the housing, with sufficient lugs to terminate the equipment grounding conductors. Connect metallic conduits that terminate without mechanical connection to the housing, by grounding bushings and grounding conductor to the equipment ground bus.

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3.4

b.

For service entrance equipment, connect the grounding electrode conductor to the ground bus.

c.

For plug-in type or feeder busducts, install insulated equipment grounding conductor from the grounding bus in the switchgear, or distribution panel to equipment grounding bar terminal on busduct.

LIGHTNING PROTECTION SYSTEM : a.

3.5

3.6

Bond the lightning protection system to the electrical grounding electrode system.

FIXTURES AND APPLIANCES : a.

Ground lighting fixtures to the equipment grounding conductor of the wiring system when the green ground is provided; otherwise, ground the fixtures through the conduit systems. Fixtures connected with flexible conduit shall have a green ground wire included with the power wires from the fixture through the flexible conduit to the first outlet box.

b.

Fixed electrical appliances and equipment shall be provided with a ground lug for termination of the equipment grounding conductor.

INSTALLATION : a.

For ground rods, install three (3) rods spaced at least 3000mm length from each other and located at least the same distance from other grounding electrodes, as shown on the electrical plans and drawings. 1.

Drive ground rods until tops are 305 mm below finished floor or final grade, unless otherwise indicated.

2.

Where rock prevents the driving of vertical ground rods, install angled ground rods or grounding electrodes in horizontal trenches to achieve the specified resistance.

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3.

3.7

Interconnect ground rods with grounding electrode conductors. Use exothermic welds, except at test wells and as otherwise indicated. Make connections without exposing steel or damaging copper coating.

b.

Route grounding conductors along shortest and straightest paths possible, unless otherwise indicated. Avoid obstructing access or placing conductors where they may be subjected to strain, impact, or damage.

c.

Install bonding straps and jumpers so that the vibration generated by equipment mounted on vibration isolation hangers and supports is not transmitted to rigidly mounted equipment. Use exothermic-welded connectors for outdoor locations, unless a disconnect-type connection is required; then, use a bolted clamp. Bond straps directly to the basic structure taking care not to penetrate any adjacent parts. Install straps only in locations accessible for maintenance.

GROUND CONNECTIONS : a.

Make connections so galvanic action or electrolysis possibility is minimized. Select connectors, connection hardware, conductors, and connection methods so metals in direct contact will be galvanically compatible. 1.

Drive ground rods until tops are 305 mm below finished floor or final grade, unless otherwise indicated.

2.

Interconnect ground rods with grounding electrode conductors. Use exothermic welds, except at test wells and as otherwise indicated. Make connections without exposing steel or damaging copper coating.

b.

For exothermic-welded connection, comply with manufacturer's written instructions. Welds that are puffed up or that show convex surface indicating improper cleaning are not acceptable.

c.

Equipment grounding conductor terminations for 8.0sq.mm and larger, shall be pressure-type grounding lugs. Smaller grounding conductors may be terminated with winged pressure-type connectors.

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3.8

d.

If metallic raceways terminate at metal housings without mechanical and electrical connection to housing, terminate each conduit with a grounding bushing. Connect grounding bushings with a bare grounding conductor to grounding bus or terminal in housing. Bond electrically non-continuous conduits at entrances and exits with grounding bushings and bare grounding conductors, unless otherwise indicated.

e.

For connections at test wells, use compression-type connectors on conductors and make bolted- and clamped-type connections between conductors and ground rods.

f.

Tighten screws and bolts for grounding and bonding connectors and terminals according to manufacturer's published torquetightening values. If manufacturer's torque values are not indicated, use those specified in UL 486A and UL 486B.

g.

Use hydraulic compression tools to provide correct circumferential pressure for compression connectors. Use tools and dies recommended by connector manufacturer. Provide embossing die code or other standard method to make a visible indication that a connector has been adequately compressed on grounding conductor.

h.

Tighten screws and bolts for grounding and bonding connectors and terminals according to manufacturer's published torquetightening values. If manufacturer's torque values are not indicated, use those specified in UL 486A and UL 486B.

FIELD QUALITY CONTROL : a.

Perform the following field tests and inspections and prepare test reports : 1.

After installing the grounding system but before the electrical circuitry has been energized, test for ground continuity, and compliance with requirements.

2.

Test completed grounding system at each location where a maximum ground-resistance level is specified, at service disconnect enclosure grounding terminal, and at ground test wells. Measure ground resistance not less than two full days after the last trace of rain or precipitation, and without the soil being moistened by any

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means other than natural drainage or seepage and without chemical treatment or other artificial means of reducing natural ground resistance. Perform tests, by the fall-of-potential method according to IEEE 81. 3.

Provide drawings locating each ground rod and ground rod assembly and other grounding electrodes, identify each by letter in alphabetical order, and key to the record of tests and observations. Include the number of rods driven and their depth at each location and include observations of weather and other phenomena that may affect test results. Describe measures taken to improve test results. Maximum value of ground resistance is five (5) ohms.

4.

If resistance to ground exceeds specified values, drive additional ground rods until resistance meets specified values. Providing ground enhancing chemicals or other artificial means of reducing natural ground resistance shall be subject to the approval of the Engineer.

- END OF SECTION -

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SECTION 26 05 33

:

RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

1.2

GENERAL :

SUMMARY : a.

This Section covers the work necessary to furnish and install complete electrical raceway systems.

b.

Raceways are enclosed channel of metal or non-metallic materials designed expressly for holding wires, cables, or busbars, with additional functions as permitted by the NEC / PEC. Raceways include, but are not limited to, rigid metal conduit, intermediate metal conduit, liquidtight flexible metal conduit, flexible metal conduit, electrical metallic tubing, rigid non-metallic conduit, underfloor raceways and wireways.

c.

The raceway sizes indicated on the electrical plans and drawings are based on the minimum allowable sizes recommended by the NEC / PEC when using type THWN/THHN copper wires and cables. The Contractor may increase conduit size at his own discretion and at no additional cost to Owner / Developer to facilitate cable pulling.

DEFINITIONS : a.

RSC

:

Rigid steel conduit

b.

IMC

:

Intermediate metal conduit

c.

EMT

:

Electrical metallic tubing

d.

LTFMC

:

Liquidtight flexible metal conduit

e.

FMC

:

Flexible metallic conduit

f.

PVC

:

Polyvinyl chloride

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1.3

1.4

QUALITY ASSURANCE : a.

All RSC, IMC, EMT, LTFMC and FMC products shall comply with ANSI C80 Standards as they apply in the particular, and shall be UL-listed.

b.

All PVC schedule-40 non-metallic conduit products shall comply with the minimum PNS 14 Standards, shall be ISO-9001 : 2008 QMS Certified and approved by the Philippine Bureau of Product Standards (BPS) .

c.

All electrical junction boxes, utility boxes and floor boxes shall comply with NEMA OS1 Standards as they apply in the particular, and shall be UL-listed.

d.

All raceways and boxes shall comply with the latest edition of the NFPA-70 (National Electrical Code) and Philippine Electrical Code.

SUBMITTALS DURING CONSTRUCTION : a.

Product data for each type of raceways and electrical boxes indicated, including fittings and accessories.

b.

Sample board of 200mm lengths for each type of electrical conduit indicated, including fittings and accessories.

c.

Sample board of each type of electrical boxes indicated.

d.

Material certificates for type of raceways and boxes indicated.

e.

Source plant quality-control test reports.

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Part 2 -

2.1

2.2

2.3

2.4

PRODUCTS :

INTERMEDIATE METAL CONDUIT : a.

Furnish IMC that conforms to UL-1242 and ANSI C80.6.

b.

Furnish zinc-plated, threaded, malleable iron fittings and conduit bodies that meet the requirements of UL514B – Fittings for Conduit and Outlet Boxes, and ANSI/NEMA FB1 – Fittings, Cast Metal Boxes, and Conduit Bodies for Conduit and Cable Assemblies.

c.

Acceptable manufacturers are Panasonic (Thailand), Allied (US), Arrowpipe (Thailand), McGill or approved equal.

ELECTRICAL METALLIC TUBING : a.

Furnish galvanized EMT that conforms to UL-797 and ANSI C80.3.

b.

Furnish zinc-plated, threaded, malleable iron fittings and conduit bodies that meet the requirements of UL514B – Fittings for Conduit and Outlet Boxes, and ANSI/NEMA FB1 – Fittings, Cast Metal Boxes, and Conduit Bodies for Conduit and Cable Assemblies.

c.

Use compression-type EMT fittings only, screw-type fittings are not acceptable.

d.

Acceptable manufacturers are Panasonic (Thailand), Allied (US), Arrowpipe (Thailand), McGill or approved equal.

LIQUIDTIGHT FLEXIBLE METAL CONDUIT : a.

Furnish LTFMC that conforms to UL-360.

b.

Acceptable manufacturers are Panasonic, Anaconda Sealtite, Liquatite, Alflex, or approved equal.

FLEXIBLE METAL CONDUIT :

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2.5

2.6

a.

Furnish galvanized FMC that conforms to UL-1.

b.

Acceptable manufacturers are Panasonic, Anaconda, Alflex, Lexington, Hokki, Amtec, or approved equal.

PVC SCHEDULE 4O NON-METALLIC CONDUIT : a.

Furnish PVC schedule 40 conduits and fittings that surpass PNS 14 Standards, thick-wall, class-A high-impact series.

b.

Use of PVC schedule 40 conduits and fittings shall be allowed only when embedded in concrete slab, concrete walls and partitions and encased in minimum of 50mm concrete envelope.

c.

Use of thin-wall series PVC conduit, flexible PVC non-metallic conduit and electrical boxes shall not be allowed.

d.

Acceptable manufacturers are Neltex, Emerald, Atlanta, Moldex, Crown, or approved equal.

ELECTRICAL JUNCTION AND UTILITY BOXES : a.

Provide electrical junction boxes and utility boxes, selected for specific installations, using the guidance in NEMA OS3, Selection and Installation Guidelines for Electrical Outlet Boxes, and the requirements of this Section.

b.

For dry locations, provide galvanized steel outlet boxes that comply with UL Standard 514-A – Metallic Outlet Boxes and ANSI/NEMA OS1 – Sheet Steel Outlet Boxes, Device Boxes, Covers, and Box Supports.

c.

For damp or wet locations and for surface-mounted RSC/IMC raceway systems, provide outlet boxes that comply with UL Standard 498 and 514, ANSI/NEMA FB1.

d.

Provide cast-iron recessed floor boxes with threaded conduit entrances for use in floor slabs on grade or below grade.

e. Part 3 -

Acceptable manufacturers are Panasonic, Steel City, Raco Hubbell, HKK, BTE Bangte Electric, McGill or approved equal. EXECUTION :

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3.1

3.2

INSPECTION : a.

Examine surfaces to receive raceways and boxes for compliance with installation tolerances and other conditions affecting performance of the raceway system. Do not proceed with installation until unsatisfactory conditions have been corrected.

b.

Beginning of the installation shall mean that the Contractor accepts the jobsite conditions.

GENERAL : a.

Install complete systems of raceways and boxes for wiring systems as indicated in the electrical plans and drawings, in compliance to the requirements of the NEC / PEC.

b.

Conceal raceways and cables, unless otherwise indicated, within finished walls, ceilings and floors.

c.

Install raceways and cables at least 150mm away from parallel runs of flues, steam and water pipes. Locate horizontal raceway runs above steam and water piping.

d.

Use temporary raceway caps to prevent moisture, dust and other foreign matter from entering the raceways.

e.

Make conduit bends and offsets so that the interior diameter is not reduced. Keep the legs of bends in the same plane and straight legs of offsets parallel, unless otherwise indicated.

f.

Make conduit bends in exposed parallel or banked runs from same centerline to make the bends parallel. Use factory-made conduit elbows only where elbows can be installed parallel, otherwise provide field-made bends for exposed parallel raceways.

g.

Use raceway and cable fittings compatible with raceways and cables, suitable for use and location.

h.

Install raceways embedded in concrete slabs in middle third of slab thickness where practical, and leave at least a minimum of 25mm concrete cover or topping.

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1. 2. 3.

3.3

Secure raceways to reinforcing rods to prevent sagging or shifting during concrete pouring. Space raceways laterally to prevent voids in concrete. Transition from PVC non-metallic conduit to EMT/IMC/RSC before rising above the floor.

i.

Install pullwires in empty raceways. Use 2.5sq.mm. zinc-coated steel or monofilament plastic line with not less than 90kg tensile strength. Leave at least 300mm of slack at each end of the pullwire.

j.

Connect motors and equipment subject to vibration, noise transmission, or movement with a maximum of 1800mm length of flexible conduit. Install liquid-tight flexible metallic conduit in wet and damp locations. Install separate ground conductor across flexible connections.

k.

Provide and install pull or junction boxes for maximum length of 30 meters run or with a maximum of four-quarter bends or equivalent.

l.

Set wall-mounted and floor-mounted boxes level and trim after installation to fit flush to finished surface.

CLEANING : a.

After completing installation of exposed, factory-finished raceways and boxes, inspect exposed finishes and repair damaged finishes.

- END OF SECTION -

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zSECTION 26 05 36

:

CABLE TRAY FOR ELECTRICAL SYSTEMS

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

GENERAL :

SUMMARY : a.

This Section includes furnishing of all labor, material, supports and services to install a complete cable tray system as shown and indicated on the electrical plans and drawings.

b.

The cable tray system is defined to include, but not limited to, straight sections of cable tray, bends, tees, elbows, crosses, risers, supports and all other related accessories necessary for a complete installation.

c.

Related Sections include the following : 1. 2. 3.

1.2

1.3

Section 26-05-00 Section 26-05-26 Section 26-05-48

: : :

General Electrical Works. Grounding and Bonding. Vibration Isolation and Seismic Restraints

QUALITY ASSURANCE : a.

All cable tray products shall comply with NEMA VE-1 Standards as they apply in the particular.

b.

All cable tray systems shall comply with the latest edition of the NFPA-70 (National Electrical Code) and Philippine Electrical Code.

SUBMITTALS DURING CONSTRUCTION : a.

Product data for on cable tray including, but not limited to, types of materials, finishes, rung spacings, inside depths and fitting radii.

b.

Detailed shopdrawings, routing plans and percentage fill and loading calculations.

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1.4

Part 2 -

2.1

COORDINATION : a.

Coordinate layout and installation of cable trays and suspension system with other construction that penetrates ceilings or is supported by them, including light fixtures, HVAC equipment, fire-suppression system, and partition assemblies.

b.

The electrical plans and drawings indicate the general routing of the cable tray systems. Data presented on drawings are as accurate as preliminary planning can determine until final equipment selection is made. Field verification is required.

c.

Specifications and drawings are for assistance and guidance, but exact routing, locations, distance, and levels will be governed by actual field conditions. Contractor must make field surveys as part of his work prior to submitting system layout drawings.

PRODUCTS :

MATERIAL AND CONSTRUCTION : a.

Provide steel ladder type cable tray constructed of hot-dipped galvanized after fabrication finish.

b.

Where slopes or horizontal bends of trays are not at standard NEMA angles, use adjustable connectors. Use combinations of fittings and adjustable connectors to prevent angle from exceeding cable bending radius. If dimensions require to be changed, obtain Engineer's written approval.

c.

Provide cable tray with outward facing side rails. Cable support surface on top of rungs shall be flattened. Inside of tray shall not have flanges or other projections. Full access to the contents of cable tray shall be available.

d.

Provide cable tray with the next higher NEMA class designation for the proposed support span length and working load adequate for the actual cable installed plus a 20% additional weight allowance for future cables plus a 115-kgs concentrated static load applied between the side rails at midspan, all with a safety factor of 2.0.

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2.2

GROUNDING : a.

2.3

Part 3 -

3.1

3.2

Provide cable tray suitable for use as a grounding conductor in accordance with the NEC / PEC. Supply ground conductor clamps and bonding jumpers for each section elbow, tee, cross, and reducer sized for the ground conductor indicated.

ACCESSORIES : a.

Provide all elbows, tees, crosses, risers, reducers, expansion joints, barrier strips, bonding jumpers, hangers, supports, conduit clamps, cable clamps, box connectors, cable dropouts, and other accessories as indicated or as required for a complete system.

b.

All steel cable trays and covers shall be furnished from the manufacturer with a painted finish of ANSI-49 gray epoxy.

EXECUTION :

INSPECTION : a.

Examine surfaces to receive cable tray system for compliance with installation tolerances and other conditions affecting performance. Do not proceed with installation until unsatisfactory conditions have been corrected.

b.

Beginning of the installation shall mean that the Contractor accepts the jobsite conditions.

GENERAL : a.

Install complete cable tray systems as indicated in the electrical plans and drawings, in compliance to the requirements of the NEC / PEC.

b.

Install a complete cable tray system. There shall be no gaps, missing accessories. All accessories must be from same

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manufacturer of cable tray. Do not make field modification of accessories.

3.3

c.

Remove burrs and sharp edges from cable trays.

d.

Fasten cable tray supports securely to building structure as specified in Section 26-05-00 "General Electrical Works - Basic Electrical Materials and Methods," unless otherwise indicated.

e.

Make connections to equipment with flanged fittings fastened to cable tray and to equipment. Support cable tray independently of fittings. Do not carry weight of cable tray on equipment enclosure.

f.

Install expansion connectors where cable tray crosses building expansion joint and in cable tray runs that exceed 30 meters. Space connectors and set gaps according to NEMA VE-1.

g.

Make changes in direction and elevation using standard fittings.

h.

Make cable tray connections using standard fittings.

i.

Locate cable tray above piping unless accessibility to cable tray is required or unless otherwise indicated.

j.

Seal penetrations through fire and smoke barriers according to Section "Through-Penetration Firestop Systems". Install capped sleeves for future cables through firestop-sealed cable tray penetrations of fire and smoke barriers.

k.

Install covers after installation of cable is completed.

l.

After installation of cable trays is completed, install warning signs in visible locations on or near cable trays.

CABLE INSTALLATION : a.

Support all control cables, either single or multiple conductor, entering the bottom of control boards with suitable clamps.

b.

Gather all wires and cables in the trays together in bundles, if a combination of two or more multiple-conductor cables and/or single conductors are in the run. Determine the grouping and

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number of wires in each bundle in the field, mainly with consideration to physical locations of the routing and destination of the wires. Provide barriers as noted on Drawings.

3.4

c.

Use nylon cable ties for bundling with a spacing between tie points of approximately 1500mm for horizontal runs, and 1000mm for vertical runs. Do all bundling and clamping before the end terminations are connected.

d.

As far as practicable, lay the wire parallel and straight in the tray. Provide barriers in cable trays where indicated. Separate all cables of different systems in the same cable tray with barriers.

FIELD QUALITY CONTROL : a.

b.

Perform the following field tests and inspections and prepare test reports : 1.

After installing the cable tray system and after the electrical circuitry has been energized, test for compliance with requirements.

2.

Visually inspect each cable tray joint and each ground connection for mechanical continuity. Measure ground resistance of each system of cable tray from the most remote element to the point where connection is made to service disconnect enclosure grounding terminal to demonstrate compliance with specified maximum grounding resistance. Record resistance in ohms.

Provide final protection and maintain conditions, in a manner acceptable to the Architect / Engineer, and ensure cable tray is without damage or deterioration at time of substantial completion. Repair damage to galvanized finishes with zinc-rich paint recommended by cable tray manufacturer.

- END OF SECTION -

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SECTION 26 05 48

:

VIBRATION ISOLATION AND SEISMIC RESTRAINTS

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

1.2

1.3

1.4

GENERAL :

DESCRIPTION : a.

Provide vibration isolation and seismic restraints in accordance with the Contract Documents.

b.

Provide vibration isolation for engine generator set, dry type transformers, and at electrical connections to rotating or vibrating equipment.

c.

Provide seismic restraints for all electrical equipment.

QUALITY ASSURANCE : a.

Vibration isolators and seismic restraints shall be of the same manufacturer.

b.

Seismic restraint external force acceleration criteria shall be 1.0 G for life safety equipment (emergency power system, fire alarm system, and equipment connected to the emergency power system). External force acceleration criteria shall be 0.5 G for non-life safety equipment.

STANDARDS : a.

SMACNA Guidelines for Restraint of Mechanical Equipment.

b.

Requirements for UBC Seismic Zone 4.

SUBMITTALS : a.

Manufacturer’s product data sheets and installation instruction for each vibration isolator and seismic restraint.

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1.5

b.

Plan and elevation diagrams showing equipment, points of attachment, vibration isolators, seismic restraints, mounting methods, and hardware types and sizes.

c.

Seismic restraint calculations. Seismic restrain calculations shall be certified by a registered Professional Structural or Civil Engineer.

d.

Field inspection report.

FIELD INSPECTION : a.

Part 2 -

2.1

PRODUCTS :

ACCEPTABLE MANUFACTURERS : a. b. c. d. e.

2.2

Upon completion of the installation, the manufacturer’s local representative shall field inspect the installation and submit a report verifying the completeness and performance of the installation.

Amber-Booth. Mason Industries. Vibration Eliminator Co. Vibration Mounting & Controls, Inc. Vibrex Vibration Control Systems.

VIBRATION ISOLATION AND SIESMIC RESTRAINTS : a.

General. 1.

Devices installed outdoors shall be weatherproof; steel components shall be hot-dipped galvanized, hardware shall be cadmium plated, and springs shall be neoprene coated.

2.

Spring diameters shall be no less than 0.8 of the compressed height of the spring at rated load.

3.

Springs shall have an additional minimum travel to solid equal to 50% of the rated deflection.

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b.

c.

d.

Part 3 -

Mounting Method Type-A. 1.

Floor mounted captive spring isolators for seismic and restrained service.

2.

Snubbing shall take place in all modes with adjustment to limit upward, downward, and horizontal travel to a maximum of 6mm before contacting snubbers.

3.

Leveling bolts for rigid bolting to equipment.

4.

Ports for spring inspection.

5.

Neoprene pad between concrete housekeeping pad and bottom of isolator.

6.

Mason Industries type SSLFH.

Mounting Method Type-B. 1.

Hanger rod spring isolators.

2.

45° slack seismic restraint cables.

3.

Neoprene spring cup with a projecting bushing to prevent steel to steel contact.

4.

Rod shall be able to swing 30° before contacting resilient bushing.

5.

Mason Industries type 30.

Mounting Method Type-C. 1.

Floor-mounted pads.

2.

Thick cork center laminated between two neoprene pads.

3.

Bolt holes.

4.

Mason Industries type NK.

EXECUTION :

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3.1

3.2

GENERAL : a.

Installation shall be in accordance with seismic restraint calculations and manufacturer’s installation instructions.

b.

Verify that mounting methods provide the required vibration isolation and seismic restraint and that there are no vibration short circuits.

c.

Conduit connected to rotating or vibrating equipment shall be flexible metal conduit or liquid tight flexible conduit.

MOUNTING SCHEDULE :

Equipment Engine Generator Set Dry Type Transformers-Suspend Dry Type Transformers-Floor Mounted

Mounting Method A

Static Deflection 25mm

B

10mm

C

N/A

- END OF SECTION -

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SECTION 26 08 00

:

ELECTRICAL TESTING AND INSPECTION

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

GENERAL :

SUMMARY : a.

This Section includes general requirements for electrical field testing and inspection. Detailed requirements are specified in each Section containing components that require testing. General requirements include the following : 1. 2. 3. 4. 5.

1.2

QUALITY ASSURANCE : a.

Testing Agency qualifications shall be as specified in each Section containing electrical testing requirements and in subparagraph and associated subparagraph below : 1.

Part 2 -

Qualifications of testing agencies and their personnel. Suitability of test equipment. Calibration of test instruments. Coordination requirements for testing and inspecting. Reporting requirements for testing and inspecting.

Independent Testing Agencies shall be independent of manufacturers, suppliers, and installers of components to be tested or inspected.

b.

Test equipment suitability shall comply with NETA ATS, Section 5.2.

c.

Test equipment calibration shall comply with NETA ATS, Section 5.3.

PRODUCTS :

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Part 3 -

3.1

EXECUTION :

GENERAL TESTS AND INSPECTIONS : a.

If a group of tests are specified to be performed by an independent testing agency, prepare systems, equipment, and components for tests and inspections, and perform preliminary tests to ensure that systems, equipment, and components are ready for independent agency testing. Include the following minimum preparations as appropriate : 1. 2. 3. 4.

b.

For test and inspection reports, in addition to requirements specified elsewhere, report the following : 1. 2. 3. 4.

3.2

Perform insulation-resistance tests. Perform continuity tests. Perform rotation test (for motors to be tested). Provide a stable source of electrical power for test instrumentation at each test location.

Manufacturer's written testing and inspecting instructions. Calibration and adjustment settings of adjustable and interchangeable devices involved in tests. Tabulation of expected measurement results made before measurements. Tabulation of "as-found" and "as-left" measurement and observation results.

PRELIMINARY STEPS FOR TESTING AND COMMISSIONING : a.

Before carrying-out testing and commissioning (T&C) works, the Contractor shall take the following steps : 1.

2. 3.

Submit draft T&C procedures to the Project Manager for approval. The draft T&C procedures shall include essential procedure mentioned in this procedure plus additional T&C procedures required for the specific installation as well as the manufacturer’s recommendation, Obtain design drawings and specifications to be thoroughly acquainted with the design intent, Obtain copies of approved shop drawings and equipment schedules,

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4. 5. 6. 7.

8.

3.3

TESTING AND INSPECTION DURING CONSTRUCTION : a.

The purpose is to ensure that all components and system are in a satisfactory and safe condition before start up. Preliminary adjustment and setting of equipment at this stage shall be carried out at the same time to pave way for the coming functional performance tests.

b.

Before carrying out any test, the Contractor shall ensure that the installation complies with all relevant statutory requirements and regulations. The T&C works shall comply with all site safety regulatory requirements currently in force, including but not limited to : 1. 2. 3. 4.

3.4

Review approved shop drawings and equipment schedules, Check the manufacturer’s operating instructions and statutory requirements, Physically inspect the installation and equipment to determine variation from designs and/or specifications, Check the individual components, e.g. key switches, control equipments, circuit break status, etc. for proper position and settings for completeness of installation, Check inclusion of manufacturer’s typical equipment testing data or factors before T&C of particular equipment.

City ordinance or legislation, Code of practice for electrical wiring per PEC/NEC, Occupational Safety and Health Center (OSHC-DOLE), Utility company’s relevant rules.

FUNCTIONAL PERFORMANCE TESTS : a.

The purpose of the functional performance test is to demonstrate that the equipment / installation can meet the functional and performance requirements as specified in the Specifications. Functional test should proceed from the testing of individual components to the testing of different system in the installation.

b.

The Contractor may have to make temporary modification as the test proceeds. The specific tests required and the order of tests

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will vary depending on the type and size of systems, number of systems, sequence of construction, interface with other installations, relationship with the building elements and other specific requirements as indicated in the Specifications. The testing of system may have to be carried out in stages depending on the progress of work or as proposed by the Contractor.

3.5

c.

Part of the tests may be required to be carried out in supplier’s premises in accordance with the provision in the Specifications.

d.

Any performance deficiencies revealed during the functional performance tests must be evaluated to determine the cause and whether they are part of the contractual obligations. After completion of the necessary corrective measures, the Contractor shall repeat the tests.

e.

If any test cannot be completed because of circumstances that are beyond the control of the Contractor, It shall be properly documented and reported to the Project Manager, who shall then liaise with the relevant parties to resolve the situation. The Contractor shall resume his testing work immediately upon the attainment of a suitable testing environment.

DOCUMENTATION AND DELIVERABLES : a.

The Contractor shall submit his proposed T&C procedure together with the T&C Progress Chart to Project Manager / Electrical Consultant for approval.

b.

All inspection and T&C results shall be recorded by the Contractor in appropriate test record forms, the reference data of which is shown against each individual test.

c.

Functional test reports covering all measured data, data sheets, and a comprehensive summary describing the operation of the system at the time of the functional tests shall be prepared and submitted to Project Manager / Electrical Consultant. Deviation in performance from the Specifications or the design intent should be recorded, with a description and analysis included.

d.

Where required in the Specifications, the Contractor shall conduct a final evaluation of the performance of the electrical

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installation, the results of which shall be included in the commissioning report. e.

3.6

The Contractor shall sign work completion certificate(s) and issue to the Project Manager after completion of the electrical installation or any work subsequent to repair, alteration or additional to an existing installation. This should be done before the installation is energized.

TESTING AND COMMISSIONING (T&C) PROCEDURES : a.

Test and Inspection During Construction. 1.

2.

3.7

The Contractor shall submit the details of the tests and inspection during construction to Project Manager / Electrical Consultant for approval on commencement of the Installation work. The test and inspection shall include, but not limited to the following : visual inspection, earth electrode resistance, and continuity of protective conductor. Details of these tests shall be in accordance with relevant sections of this procedure.

STATUTORY INSPECTION AND TESTS FOR LOW-VOLTAGE INSTALLATIONS : a.

Inspection Before Tests. 1.

A visual inspection shall be made to verify that the electrical installation or equipment as installed is correctly selected, erected and that there is no apparent damage. The inspection shall include a check on the following items, where appropriate : adequacy of working space, access, and maintenance facilities; connection of conductors; identification of conductors; adequacy of the sizes of conductor (based on electrical design) in relation to current carrying and voltage drop; correct connections of all equipment with special attention to socket outlets, lampholders, isolators,

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-

b.

Sequence of Tests. 1.

c.

switches, residual current devices, molded case circuit breaker, and protective conductors; presence of fire barriers and protection against thermal effects; methods of protection against direct contact with live parts (including measurement of distance where appropriate)’ i.e. protection by insulation of live parts, or protection by barriers or enclosures; presence of appropriate devices for isolation switching; choice and setting of protective and indicative devices; labelling of circuits, fuses, protective devices, switches, isolators and terminal; selection of equipment and protective measure appropriate to adverse environment conditions; presence and danger and warning signages; presence of diagrams, instructions and other similar information; connection of single pole devices for protection or switching in phase conductors only; method of protection against indirect contact; prevention of mutual detrimental influence; presence of undervoltage protective devices; erection method; and any other appropriate inspection.

The following items, where relevant, are to be tested preferably in the sequence indicated below : continuity of protective conductors, including main and supplementary equipotential bonding; insulation resistance; polarity; earth electrode resistance; earth fault loop impedance; function of all items of equipment.

Conductor Continuity. 1.

Every protective conductor, including all conductors and any extraneous conductive parts used for equipotential bonding should be tested for continuity. The test should be made by connecting together the neutral and

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protective conductors at the mains position and checking between earth and neutral at every outlet by continuity tester, which should a reading near zero. d.

Insulation Resistance. 1.

2.

3.

4.

A suitable direct current (DC) insulation tester should be used to measure insulation resistance. Care should be taken to ensure that the insulation of the equipment under test could withstand the test voltage without damage. When measured with all fuses links in place, all switches and circuit breakers (including, if practicable, the main switch) closed and all poles or phases of the wiring electrically connected together, the insulation resistance to earth should not less that the appropriate values. For best practice, the insulation resistance shall not be lower than 25 megohm for low voltage installation under a test voltage 500V DC, or 100 megohm under a test voltage of 1000V DC. For the sake of enhanced safety, when the value of insulation resistance measured is near the minimum values as required in this T&C procedure, or at relatively low values where considered abnormal to Trade’s practice, the concerned circuit or installation shall be rechecked to improve and re-test shall be conducted afterward. In carrying out the test : wherever practicable, all lamps should be removed and all current using equipment should be disconnected and all local switches controlling lamps or the other equipment should be closed; where the removal of lamps and/or the disconnection of the current using equipment is impracticable, the local switches controlling such lamps and/or equipment should be open; electronic devices connected in the installation should be isolated or short circuited where appropriate so that they are not damaged by the test voltage; and where the circuits contain voltage sensitive devices, the test should measure the insulation resistance to earth with all live conductors (including the neutral) connected together.

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5.

6.

e.

Polarity. 1.

f.

A test of polarity should be carried out to verify that : - every fuse and single pole control and protective device is connected in the phase conductor only; - center-contact bayonet and Edison-type screw lampholders to IEC 60238 in circuits having an earthed neutral conductor, have outer or screwed contacts connected to that neutral conductor; and - wiring has been correctly connected to socket outlets and similar accessories.

Earth Electrode Resistance. 1.

g.

The sequence of test shall be as follows : main switch/switchboard and outgoing circuit with sub-main switches being isolated; sub-main switches/switchboard and outgoing circuits with final circuits boards being isolated; and final circuit board and final circuits. Where equipment is disconnected for the test and the equipment has exposed conductive parts require to be connected to protective conductors, the insulation resistance between the exposed conductive parts and all live parts of the equipment should be measured separately and should have minimum insulation resistance mentioned above.

A proper earth electrode resistance tester should be used to measure earth electrode resistance. An alternating current at 60Hz of a steady value is passed between the electrode T and the auxiliary earth electrode T1 placed at a separation distance recommended by the manufacturer of the tester but in any case should not be less than 20 meters away. A second auxiliary electrode T2, which may be a metal spike driven into the ground is then inserted half-way between T and T1, and the voltage drop between T and T2, divided by the current flowing between T and T1, gives a measured earth electrode resistance of earth electrode T.

Earth Fault Loop Resistance.

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1. 2.

h.

Function of All Devices, including Protective Devices. 1.

2.

i.

The earth fault loop impedance should be measured by a phase-earth loop tester with a scale calibrated in ohms. Before the test begins, it is essential to establish, by inspection, that the earthing conductors and all relevant earth connections are in place, and that the bonding connection to electricity supplier’s earthing facilities is disconnected. Measure should be taken, during the impedance tests especially when the earth leakage protective devices are effectively removed for the duration of the tests, to ensure that the installation is not being used other than by person(s) carrying out the tests.

Function of other protective devices, such as molded case circuit breaker, air circuit breakers, fused switches switch-fuses and protective relays etc. should be checked by hand operation. Function of all items of equipment such as isolators, switches and indicative devices should be checked by hand operation.

Additional Check for the Installation in Hazardous Environment. 1.

The following additional checklist, where appropriate, shall be carried out for installation in hazardous environment in accordance with the Code : Where appropriate, the area involved should be checked to ensure “gas free” condition before insulation and earth fault loop impedance test are carried out; All equipment should be suitably protected according to the types of protection. The integrity of the type of protection provided for the equipment should not be jeopardized by the method of installation. No alteration that may invalidate the conditions of protection can be used; Equipment should be kept clean and free from accumulation of dust, foreign particles and deleterious substances. Equipment is kept free from condensation; All lamps, fuses and replaceable parts should be checked so that correct rating types are being used; and

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-

3.8

The surface temperature of all equipment should be appropriate to the type of protection being provided.

FUNCTIONAL TESTS OF SYSTEM OR EQUIPMENT : a.

Lightning Protection System. 1.

2.

3.

4.

b.

The whole lightning protection system shall be tested for continuity between air terminations and earthing terminations and the resistance shall be recorded. The earth termination resistance shall be tested and recorded. Each earth termination shall have a resistance to earth not exceeding 5 ohms times’ number of earth terminations to be provided. The whole of the lightning protection system shall have a combined resistance to earth to earth not exceeding 5 ohms. Locations of all earth electrodes and down tape routing shall be checked to be clear of any dangerous goods store, diesel tanks and inflammable stores, etc. All connections at terminations tee off points and earth electrodes shall be checked for tightness.

Circuitry Check. 1.

All circuits shall be verified through switching operation to ensure that the circuits are installed in accordance with the designated circuit. The tests shall include but not limited to the following : on/off switching of the lighting circuit to ensure that the circuit is installed corresponding to the lighting switch, protective device and labeling. switching of the general power circuit to ensure that the circuit corresponds to the protective device such as MCB, and that the protective device performs in accordance with designated duty; switching of all sub-main and main distribution circuits, e.g. busducts, cable feeders, underground cables, etc. to ensure the correct isolation of the connected circuit; and ensuring all the protective devices perform properly against the designated circuit.

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c.

Busbar Trunking / Busduct Riser System. 1.

2.

3.

4.

5.

6.

7.

3.9

In general, the busbar trunking system shall be certified by testing laboratories or organizations. It shall be typetested in accordance with Clause 8.1.1 of IEC 60439-2. The verification of short circuit strength shall be carried out by an independent short circuit testing organization. Short-circuit test on the phase and neutral shall be carried out in accordance with the Clause 8.2.3 of IEC 60439-1 to the value of short-circuit current in the Specifications. The busbar insulation shall be tested in accordance with Clause 8.2.2 of IEC 60439-1. All test certificates shall presented during inspection and testing. The busbar trunking system shall be tested to verify its continuity, Insulation resistance, polarity, earth fault loop impedance and other parameter as appropriate after installation. For Installation of busbar trunking with long run, phase transposition of busbar in accordance with manufacturer’s recommendation shall be checked. Plug-in tap-off unit of busbar trunking system shall be tested to verify proper and safe operation. Mechanical interlock, quick fastening and quick releasing mechanism of the tap-off unit shall be tested. Positive earth connection of tap-off unit shall be checked. After power energization of the busbar trunking system, infrared scanning at connecting joints shall be carried out to check for abnormal rise in temperature at the joints. The Contractor shall submit proposals of the test methodology and propose testing points for Project Manager’s / Electrical Consultant’s approval prior to the test.

TEST AND INSPECTION FOR LOW-VOLTAGE SWITCHGEARS : a.

The following sections stipulates the additional inspection and testing requirements for the low-voltage switchgear (LVSG) installation. For comprehensive testing and commissioning, the Contractor shall also refer to relevant sections of this T&C procedure and carry out inspection / test accordingly.

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b.

Visual inspection shall be carried out for the installation of the LVSG installation in accordance with Specifications. The following components shall be included : 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.

c.

Construction of type tested assembly; Main busbar and feeders/risers; Air circuit breaker/fuses switches; Power factor correction capacitor bank; Automatic transfer switch (ATS); Instrumentation and protection devices; Incoming/outgoing busbar and cables; Portable earthing equipment; Operating handles / keys; Hydraulic truck; and Rubber insulation.

The following test shall be carried out on site after completion of installation of the LVSG and before the connection of the incoming supply cable : 1.

2.

3.

4.

5. 6.

7.

Dielectric tests shall be carried out to verify the dielectric properties of the LVSG. The test requirements shall be in accordance to IEC 60439-1. Insulation resistance tests shall be carried out by means of a 1000V insulation resistance tester or similar instrument. Secondary injection tests shall be carried out using AC and shall check (approximately) that the protection relays or devices function in accordance with their performance curves by a test at the lowest setting and two further tests of current and timing. Primary injection tests shall be carried out to prove the correct operation of protective devices or system when set at agreed setting. Polarity check for current transformer (CTs) shall be carried-out to ensure that all CTs are correctly connected. Function tests of all devices shall be carried-out to ensure that all devices can operate properly as intended. The equipment to be tested shall include, but not limited to, all circuit breaker, isolating switches, changeover switches, contactors, interlocking facilities, protective relays, earth leakage tripping devices, metering facilities and instruments. Contact resistance tests shall be carried out by means of “Ductor” tester or similar instrument to ensure that

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8.

d.

The following test shall be carried out after the incoming supply cables are connected and the LVSG successfully commissioned but with no-load : 1. 2. 3. 4. 5.

3.10

contacts and joints for switchgear, cables, busbar as well as the contacts and joinst for outgoing cables and busbar are maintained in good condition. Temperature rise limits tests shall be carried out as defined in IEC 60439-1. With the prior approval by Project Manager or Electrical Consultant, the primary injection test and temperature rise limits test can be carried out in factory due to site constraints.

Phase-to-phase voltage tests; Phase-to-neutral voltage tests; Phase-to-earth voltage tests; Neutral-to-earth voltage tests; Phase sequence test on each and every outgoing circuit

POWER ENERGIZATION : a.

After the proper testing and commissioning of the electrical installation, the Contractor shall notify the appropriate Authority, through the Project Manager, on the completion of installation and its readiness for inspection and testing.

b.

The following shall be checked before power energization : 1. 2. 3.

4. 5. 6. 7. 8.

Busbar chambers, main and sub-main switch connections i.e. bolts and nuts tightness; Earthing connection at the compartments, all switches and earth electrodes; Clearance of live parts from direct contact with or any likelihood of contact with tools, spurious bare conductors remaining in switches, air circuit breakers (ACBs) and switch cubicles; Polarity, phase sequence of all switches and relevant fuse ratings; Stand-by battery supply and the operation of shunt trip mechanism; Settings of overcurrent, earth faults relays and current transformer (C.T.) polarity; Vacuum cleaning of switches and ACBs; Provision of danger and warning signages.

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9. c.

Whenever there is any break of time e.g. the next day, in carrying-out the switch-on or energization process, re-test of insulation resistance is required. The following procedures shall be followed in the switch-on process : 1. 2. 3. 4.

5.

3.11

Certified work completion certificate.

Switch on the main switch/ACB with all other sub-main switches off; If normal, switch on other sub-main switches one by one with all other out going switches off; If normal, then switch on all other out-going switches one by one; Observe the disc of the overcurrent and earth fault protection relays for any movement for Inverse Definite Minimum Time (IDMT) relays or for digital protection relays check whether there are any fault indications; Keep vigilance for about 30 minutes to see if any smell or abnormal noise was being generated.

CALIBRATED EQUIPMENT : a.

The Contractor shall supply the calibrated equipment relevant for T&C of the electrical installation as stipulated in the particular specification of the Contract or the Specifications whichever appropriate. The equipment shall be calibrated by the recognized laboratories accredited locally or other worldwiderecognized laboratories during the active period of the Contract.

b.

A list of equipment proposed by the Contractor to be used for T&C must be agreed with the Project Manager prior to T&C. All equipment requiring periodic calibration shall have this carried out before the work commences. Data sheet of such testing instrument showing Manufacturer’s name, model number, and latest date of calibration and correction factors shall be submitted to the Project Manager for record. If any item requires re-checking the accuracy because of the time that has elapsed since the previous calibration, this shall be carried out prior to commencing the work.

- END OF SECTION -

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SECTION 26 23 00

:

LOW-VOLTAGE SWITCHGEARS ( LVSG )

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

GENERAL :

SUMMARY : a.

Furnish and install the free-standing, totally enclosed dead-front low-voltage switchgears (LVSG), consisting of an assembly of air circuit breakers and moulded-case circuit breakers of the number, size and arrangement as specified herein and as shown on the electrical plans and drawings.

b.

Related Sections include the following : 1. 2. 3. 4. 5.

1.2

Section 26-05-00 Section 26-05-19 Section 26-05-26 Section 26-05-33 Section 26-05-48

: : : : :

General Electrical Works. Low-Voltage Wires & Cables. Grounding and Bonding. Raceways and Boxes. Vibration Isolation and Seismic Control

QUALITY ASSURANCE : a.

The low-voltage switchgears (LVSG) shall be engineered products. The assemblies shall be constructed, wired and tested in accordance with all applicable sections of the latest Standards and Codes, particularly ANSI C37.20.1, C37.51, NEMA SG-5, NEMA AB-1, NEMA-PB2, UL 489, and NEC / PEC.

b.

The LVSG manufacturer shall have specialized in the fabrication of low-voltage switchgears, panelboards and load center assemblies for minimum of ten (10) years, and shall be minimum ISO-9001 : 2008 QMS Certified.

c.

All LVSG components shall be brand new, manufactured within two (2) years of Award of Contract, and shall be obtained through one single source from a single manufacturer.

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d.

1.3

All LVSG overcurrent protective devices, and associated auxiliary equipment shall comply with the latest edition of the NFPA-70 (National Electrical Code) and Philippine Electrical Code.

SUBMITTALS DURING CONSTRUCTION : a.

Product data for each LVSG assembly, overcurrent protective device, automatic transfer switch, capacitor, digital multi-function meter, transient voltage surge suppression device, accessory, and component indicated. Include dimensions and manufacturers' technical data on features, performance, electrical characteristics, ratings, and finishes.

b.

Provide dimensioned plans, elevations, sections, and details for LVSG assembly and related equipment. 1.

Show tabulations of features, and ratings.

installed

devices,

2.

Show bus configuration, current, and voltage ratings.

3.

Show wiring diagrams for power, signal and control wiring.

4.

Provide mimic bus diagram.

5.

Indicate short-circuit current overcurrent protective devices.

6.

Indicate features, characteristics, ratings, and factory settings of individual overcurrent protective devices and auxiliary components.

7.

Show cable and conduit entry and exit points for proper wire management inside the LVSG.

rating

of

equipment

the

c.

Source plant quality-control test reports.

d.

Operation and maintenance data, which shall include : 1.

Manufacturer's written instructions for adjusting overcurrent protective devices.

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testing

LVSG

and

August 2019 Section 26-23-00 2 of 15

2.

1.4

1.5

1.6

Time-current curves, including selectable ranges for each type of overcurrent protective device.

COORDINATION : a.

Provide coordination drawings of floor plans showing dimensioned layout, required working clearances, and required area above and around the LVSG where pipe and ducts are prohibited. Show the LVSG layout and relationships between components and adjacent structural and mechanical elements. Show support locations, type of support, and weight on each support. Indicate field measurements.

b.

Coordinate layout and installation of LVSG and components with other construction that penetrates ceilings or is supported by them, including conduit, piping, equipment, and adjacent surfaces. Maintain required clearances for workspace and equipment access doors and panels.

c.

Coordinate size and location of concrete bases.

DELIVERY, STORAGE AND HANDLING : a.

Deliver the LVSG in sections of lengths that can be moved past obstructions in delivery path.

b.

Store the LVSG indoors in clean dry space with uniform temperature to prevent condensation. Protect the LVSG from exposure to dirt, fumes, water, corrosive substances, and physical damage.

WARRANTY : a.

The Contractor / Manufacturer shall warrant the LVSG assemblies free from defects in materials and workmanship for two (2) years from the date of acceptance of the work.

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Part 2 -

2.1

2.2

PRODUCTS :

GENERAL FABRICATION FEATURES : a.

The low-voltage switchgears (LVSGs) shall be factoryassembled and tested and in accordance with IEEE C37.20.1.

b.

The LVSG enclosure material shall be steel, finished with manufacturer's standard gray finish over a rust-inhibiting primer on phosphatizing-treated metal surfaces.

c.

The LVSGs shall be NEMA Type 1A, fully-gasketed. Where installed within the sprinkled areas, the LVSGs shall be rain-tight NEMA 3R.

d.

The LVSG shall be rear-accessible type. The LVSG enclosure shall be fabricated with removable, hinged, rear cover panels, secured by captive thumbscrews, to allow access to rear interior of switchgear.

e.

Circuit-breaker compartments shall be equipped to house drawout-type circuit breakers and shall be fitted with hinged outer doors. All air circuit breakers shall have an LSIG protective function.

f.

Section barriers between main and tie circuit-breaker compartments shall be extended to rear of section. Bus isolation barriers shall be arranged to isolate line bus from load bus at each main and/or tie circuit breaker.

ACCEPTABLE LVSG FABRICATORS : a. b. c. d. e. f.

Fuji-Haya Electric Corporation LJ Industrial / Tom’elekt Power System / Powerbox KC Industrial Corporation Asiaphil Industries, Inc. Edison Electric Controlgear Electric Corporation

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2.3

ACCEPTACLE CIRCUIT BREAKER BRANDS : a. b. c. d. e. f. g. h. i. j.

2.4

Schneider Electric (Square-D / Merlin Gerin) ABB General Electric (GE) Siemens Eaton (Cutler Hammer) LS Industrial Mitsubishi Electric Fuji Electric Terasaki Hyundai Electric

COMPONENTS : a.

Busbars shall be hard-drawn 99% copper. 1.

Busbars shall be sized based on the ampacity required per electrical load schedule with reference to published copper mint certificates on busbars conductivity.

2.

Main phase bus shall be of uniform capacity for the entire length of the LVSG assembly.

3.

Neutral bus shall be 100% rated. Ground bus shall be minimum 50% rated. The neutral bus shall be insulated and isolated from both the grounding busbar and the LVSG enclosure.

4.

Contact surface of buses and feeder circuit breaker load terminals shall be silver-plated.

5.

Busbars shall be adequately braced and supported for indicated short-circuit currents.

6.

Each individual phase and neutral bus shall be factorycovered by flame-retardant 105°C insulating tape, with minimum dielectric strength of 9.5KV. Bus joints shall be completely insulated. The color-coding of insulating tape shall be as follows : a. b. c. d.

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Phase-A Phase-B Phase-C Neutral

: : : :

Black Red Yellow White August 2019 Section 26-23-00 5 of 15

b.

c.

d.

LVSG auxiliary compartments shall include the following : 1.

Utility metering compartment that complies with utility company requirements.

2.

Bus transition sections.

3.

Incoming-line pull sections.

4.

Hinged front panels for access to metering, accessory, and blank compartments.

5.

Wire management gutter (pulling box) on top of switchgear for extra room for pulling cable, with removable top, front, and side covers and ventilation provisions adequate to maintain air temperature in pull box within same limits as switchgear.

Instrument transformers shall comply with IEEE C57.13. 1.

Potential Transformers: Secondary-voltage rating of 240 V and NEMA accuracy class of 0.3

2.

Current Transformers: Ratios as indicated; burden and accuracy class suitable for connected relays, meters, and instruments.

Digital multifunction metering monitor shall be UL-listed or ULrecognized, microprocessor-based unit suitable for three-wire or four-wire systems and with the following features: 1.

Inputs from sensors or 5-A current-transformer secondaries, and potential terminals rated to 600 V.

2.

Switch-selectable digital display of the following : -

R. A. MOJICA and PARTNERS A Proposed Mixed-Use Development Technical Specifications

Phase Currents, Each Phase: Plus or minus 1 percent. Phase-to-Phase Voltages, Three Phase: Plus or minus 1 percent. Phase-to-Neutral Voltages, Three Phase: Plus or minus 1 percent. Three-Phase Real Power: Plus or minus 2 percent.

August 2019 Section 26-23-00 6 of 15

-

-

e.

2.5

Three-Phase Reactive Power: Plus or minus 2 percent. Power Factor: Plus or minus 2 percent. Frequency: Plus or minus 0.5 percent. Integrated Demand, with Demand Interval Selectable from 5 to 60 Minutes: Plus or minus 2 percent. Accumulated energy, in megawatt hours (joules), plus or minus 2 percent; stored values unaffected by power outages for up to 72 hours.

3.

Display and control unit flush or semiflush mounted in instrument compartment door.

4.

Acceptable digital multifunction meter manufacturers are PML ION, General Electric, Schneider Electric (SquareD), Landis + Gyr, EDMI Genius, Socomec Diris, or approved equal.

Transient voltage disturbances from commercial power systems associated with lightning storms and switching surges externally, as well as harmonics generated by variable speed drives, UPS and rectifiers equipment internally, may cause stress and damage to electrical equipment. Provide service-entrance type TVSS protective devices at the LVSGs as indicated in the electrical load schedule and drawings.

AUTOMATIC TRANSFER SWITCH ( IF BREAKER-TYPE ) : a.

The breaker-type automatic transfer switch (ATS) shall consist of two (2) electrically-operated, mechanically-interlocked power circuit breakers. The ATS controller shall be a microprocessorbased intelligent circuit and control panel.

b.

The ATS circuit breakers shall be 4-pole, fully-rated, draw-out type. The ATS equipment shall have an anti-pumping mechanism and 3-phase sensing on both supply-sides.

c.

The breaker-type ATS features shall include : 1. 2. 3.

Undervoltage sensing for each phase of normal source. Time delay for override of normal-source voltage sensing delays transfer and engine start signals. Voltage / frequency lock-out relay.

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4. 5. 6. 7. 8. 9. 10. 11. 12.

2.6

Tme delay to retransfer to normal source. Test switch. Switch position pilot lights. Source available indicating lights. Unassigned auxiliary contacts. Transfer override switch. Engine starting contacts. Engine shutdown contacts. Engine-generator exerciser.

AIR CIRCUIT BREAKERS : a.

Air circuit breakers shall comply with NEMA SG-3, ANSI C37.50, with interrupting capacity to meet available fault currents. 1.

Air circuit breakers shall be draw-out type, manually or electrically operated, as indicated on the electrical drawingss.

2.

Breakers of like frame sizes shall be interchangeable as standard. No special structure bracing shall be required.

3.

All circuit breaker operating mechanisms are to be twostep, fully stored energy devices for quick-make, quickbreak operation. Actuation of the operating handle or an operation cycle of the circuit breaker motor is to charge the closing springs (step1) and operation of a local "close" button is to close the circuit breaker contact (step2). Closing the circuit breaker contacts shall automatically charge the opening springs.

4.

The circuit breaker shall be covered in the front such that when installed in an enclosure cell with a solid hinged door a double barrier shall exist between operating personnel, the circuit breaker mechanism and live parts. The circuit breakers are to mount on a rigid, self-aligning drawout mechanism with "connected", "test", disconnected", and "removed" positions. The front door shall be capable of being closed in the "connected", "test" or "disconnected" positions.

5.

Padlocking provisions shall be furnished to receive up to three padlocks when circuit breaker is in the open position, positively preventing unauthorized closing of the

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circuit breaker contacts. A manual trip button and position indicator shall be furnished on all circuit breakers. "Push to Close" button shall be conveniently located on face of circuit breaker for easy access, thereby avoiding the need to reach behind or around other devices located on the face of the circuit breaker. 6.

b.

2.7

Provide interlocks so that the circuit breaker must be open before it can be moved from any position when it is between positions. Include an interlock to discharge the stored energy spring before the circuit breaker element can be withdrawn from its cell. In the "test" and "connected" positions, provide a positive ground contact between the circuit breaker element and the structure.

Air circuit breaker features and accessories. 1.

The circuit breaker trip device shall be of a solid-state microprocessor design which requires no external power connections. The trip device shall be RMS current sensing.

2.

The trip device shall be provided with an adjustable longtime delay, instantaneous, short-time delay, overcurrent/short circuit protection. Include ground fault tripping as an integral part of the solid-state trip device. Provisions for self-testing shall be provided.

3.

Indicators for overload, short circuit and ground trip shall be provided.

4.

Lugs shall be either two-hole long-barrel compression type suitable for use with size, trip rating and conductor material.

MOULDED-CASE CIRCUIT BREAKERS : a.

Moulded-case circuit breakers shall be NEMA AB-1, with interrupting capacity to meet available fault currents. 1.

Thermal-magnetic circuit breakers shall be inverse timecurrent element for low-level overloads, and instantaneous magnetic trip element for short circuits.

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Adjustable magnetic trip setting for circuit breaker frame sizes of 250 A and larger. 2.

b.

2.8

Current-limiting circuit breakers for frame sizes 400 A and smaller; let-through ratings less than NEMA FU 1, RK-5.

Moulded-case circuit breaker features and accessories. 1.

Standard frame sizes, trip ratings, and number of poles.

2.

Lugs shall be either compression or mechanical type suitable for use with size, trip rating and conductor material.

AUTOMATIC POWER FACTOR CONTROL EQUIPMENT : a.

The automatic power factor controller shall be in compliance with UL508, completely pre-wired and factory-assembled, and consist of main bus, current limiting fuses, transient suppressors and switching contactors to each fixed unit capacitor bank, and power factor sensing and control equipment to provide variable correction within discrete steps and to maintain a preset value of power factor.

b.

Power Factor Controller Unit Setpoints :

c.

1.

Operating Voltage

:

400 Vac, 3Ø, 60Hz

2.

Kvar Capacity

:

500 kVar

3.

Number of Steps

:

10 steps x 50 kVar

4.

Power Factor Range

:

90 to 95 percent

5.

Basic Impulse Level

:

35 Kilovolts

6.

Main Bus S.C. Rating

:

65 KA RMS symm.

7.

Ambient Temp. Range

:

-25°C to 46°C

Enclosure.

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August 2019 Section 26-23-00 10 of

1.

The enclosure shall be free-standing, constructed of code gage rigidly-welded steel, including a hinged vault-type door and removable lifting eyes, finished in light grey epoxy paint. The door shall limit personnel exposure to internal components and shall be interlocked to cause a disconnect of all capacitors when the door is opened.

2.

The enclosure shall be designed for indoor installation with a weatherproof plastic viewing window in compliance with UL746 requirements.

3.

The enclosure shall be ventilated and fan controlled to maintain a maximum internal temperature rise of 20°C, with an automatic shutdown of the unit if internal temperature exceeds 60°C.

d.

Incoming power termination shall be provided by sets of lugs shall be either compression or mechanical type suitable for use with size, trip rating and conductor material.

e.

Fuses shall be provided in each phase of each capacitor bank and on the line-side of the contactor. Fuses shall be current limiting, rated 100 KAIC symmetrical, and mounted in 3-pole fuse blocks to facilitate removal without removing the power wiring.

f.

Contactors shall be three-pole, 600Vac rated with 230Vac operating coils. The contactors shall be capacitor rated to withstand the in-rush currents imposed by capacitor switching.

g.

Toroidal transient suppressor coils shall be included in all three phase of each capacitor bank to minimize the effect of voltage transients during capacitor switching, and to limit the capacitor in-rush current. These coils shall be braced for 100,000 amperes symmetrical.

h.

Capacitor fixed unit banks shall consist of individual single phase cells on an open tray with harness wiring in a three-phase configuration to facilitate maintenance of any single cell. Discharge resistors mounted external to the cells shall be provided to reduce voltage on the cells to 50Volts or less within one minute after the capacitor has been switched off. Individual cells shall be UL-listed and the liquid-filled, self-healing type, utilizing a low-loss metalized film dielectric system with a

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pressure sensitive circuit interrupter. Electrical losses, including contribution of discharge resistors shall average less than 0.5 watts per Kvar. Dielectric fluid shall be of high flash point, nonflammable, biodegradable, non-toxic and contains no PCBs. Dry-type capacitors shall not be acceptable. i.

The controller shall be a solid-state programmable reactive current sensing unit with digital display capabilities of power factor, active KW current, reactive Kvar current and number of energized steps. The controller shall permit the programming f desired power factor, sequence of capacitor switching, time delay of switching from 10 to 120 seconds, sensitivity of switching around the set power factor, symmetry of switching around the set power factor and manual or automatic power factor control. Indication of incorrect reverse phase rotation wiring shall also be provided to facilitate correct installation. Indication of lagging and leading current with respect to power factor setting shall also be provided. 15 millisecond loss of voltage drop-out, non-sequential switching, and auxiliary fault signal contact shall be provided. The fault signal contact shall close when operating voltage is lost or when the programmed sensitivity threshold is exceeded for more than ten minutes.

j.

Low voltage, 230Vac control circuits shall be provided with fivemilliamperes personnel ground fault protection.

k.

A blown fuse indicating lamp shall be provided for each capacitor fuse and shall be externally visible from the front of the controller and identified with respect to capacitor banks.

l.

Internal wiring and equipment necessary to permit more than one controller to function properly with another when installed on the same distribution system shall be provided. Only a minimal amount of external point-to-point wiring shall be required to interlock two or more units to each other.

m.

Removable air filters for dustproof application shall be provided on incoming ventilation openings.

n.

A single current transformer to be installed on phase-A, upstream of where the automatic capacitor us attached to the distribution system. The CT shall be donut-type with an opening large enough to facilitate installation on phase-A cable or bus and have a burden capacity of 1.8VA per capacitor controller.

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August 2019 Section 26-23-00 12 of

2.9

Part 3 -

3.1

3.2

ACCESSORY COMPONENTS AND FEATURES : a.

Furnish accessory set including tools and miscellaneous items required for overcurrent protective device test, inspection, maintenance, removal, and operation.

b.

Furnish portable test set to test functions of solid-state trip devices without removal from the LVSG.

c.

Provide permanent fungicidal treatment for LVSG interior, including overcurrent protective devices and other components.

EXECUTION :

INSPECTION : a.

Examine surfaces to receive the LVSG for compliance with installation tolerances and other conditions affecting performance of the system. Do not proceed with installation until unsatisfactory conditions have been corrected.

b.

Beginning of the installation shall mean that the Contractor accepts the jobsite conditions.

GENERAL : a.

Install LVSG assemplies and accessories as indicated in the electrical plans and drawings, according to ANSI C37.20.1, C37.51, NEMA SG-5, and in compliance to the requirements of the NEC / PEC.

b.

Comply with mounting and anchoring requirements as specified in Section 26-05-48 “Vibration Isolation and Seismic Controls for Electrical Works”.

c.

Anchor switchgear assembly to 100-mm (4-inch), channel-iron floor sill embedded in floor or concrete base and attach by bolting.

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3.3

3.4

3.5

IDENTIFICATION : a.

Identify field-installed conductors, interconnecting wiring, and components. Provide warning signs as specified in Section 2605-00 "General Electric Works."

b.

Label each LVSG section with engraved metal or laminatedplastic nameplate mounted with corrosion-resistant screws.

c.

Frame and mount the LVSG power sources and feeder diagrams, and instructions under clear acrylic plastic on the front of the LVSG

CONNECTIONS : a.

Ground equipment according to Section 26-05-26 : “Grounding and Bonding”.

b.

Connect wiring according to Section 26-05-19 : “Low-Voltage Wires and Cables”.

FIELD QUALITY CONTROL : a.

b.

Prepare for acceptance tests as follows : 1.

Test insulation resistance for each LVSG bus, component, connecting supply, feeder, and control circuit.

2.

Test continuity of each circuit.

After installing the LVSG and after electrical circuitry has been energized, demonstrate product capability and compliance with requirements. 1.

Perform each visual and mechanical inspection and electrical test indicated in NETA ATS for circuit breakers. Certify compliance with test parameters.

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August 2019 Section 26-23-00 14 of

2.

c.

3.6

3.7

Correct malfunctioning units on-site, where possible, and retest to demonstrate compliance; otherwise, replace with new units and retest.

After substantial completion, but not more than 60 days after final acceptance, perform an infrared or thermographic scan of the LVSG. Remove LVSG rear panels so that joints and connections are accessible to portable scanner.

ADJUSTING : a.

Set field-adjustable switches and circuit-breaker trip ranges.

b.

Circuit breaker pick-up level and time delay settings shall be adjusted to values indicated on the coordination study as prepared by the Contractor / LVSG Manufacturer as reviewed and approved by the Engineer.

c.

Engage a factory-authorized service representative to perform startup service.

CLEANING : a.

On completion of installation, inspect interior and exterior of the LVSG. Remove paint splatters and other spots. Vacuum dirt and debris - do not use compressed air to assist in cleaning. Repair exposed surfaces to match original finish.

- END OF SECTION -

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SECTION 26 24 16

:

ELECTRICAL PANELBOARDS

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

GENERAL :

SUMMARY : a.

This section specifies the furnishing, installation, and connection of panelboards and load centers, overcurrent protective devices, and associated auxiliary equipment rated 600 Volts and less for the following types : 1. 2. 3. 4.

b.

-

Distribution panelboards. Power panelboards. Receptacle panelboards. Lighting panelboards.

Related Sections include the following : 1. 2. 3. 4. 5.

1.2

DP PP RP LP

Section 26-05-00 Section 26-05-19 Section 26-05-26 Section 26-05-33 Section 26-05-48

: : : : :

General Electrical Works. Low-Voltage Wires & Cables. Grounding and Bonding. Raceways and Boxes. Vibration Isolation and Seismic Control

QUALITY ASSURANCE : a.

The panelboards and load centers shall be engineered products. The panelboard and load center assemblies shall be constructed, wired and tested in accordance with all applicable sections of the latest Standards and Codes, particularly NEMA PB-1, NEMA AB-1, NEMA KS-1, UL 50, UL 67, UL 98, UL 489, and NEC / PEC.

b.

The manufacturer shall have specialized in the fabrication of panelboards and load center assemblies for minimum of ten (10) years, and shall be minimum ISO-9001 : 2008 QMS Certified.

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1.3

c.

All panelboard and load center circuit breaker components shall be brand new and shall be obtained through one single source from a single manufacturer.

d.

All panelboards and load centers, overcurrent protective devices, and associated auxiliary equipment shall comply with the latest edition of the NFPA-70 (National Electrical Code) and Philippine Electrical Code.

SUBMITTALS DURING CONSTRUCTION : a.

Product data for each type of panelboard, overcurrent protective device, transient voltage suppression device, accessory, and component indicated. Include dimensions and manufacturers' technical data on features, performance, electrical characteristics, ratings, and finishes.

b.

Provide dimensioned plans, elevations, sections, and details for each panelboard and related equipment. 1.

Show tabulations of features, and ratings.

installed

devices,

equipment

2.

Show bus configuration, current, and voltage ratings.

3.

Show wiring diagrams for power, signal and control wiring.

4.

Indicate short-circuit current rating of panelboards and overcurrent protective devices.

5.

Indicate features, characteristics, ratings, and factory settings of individual overcurrent protective devices and auxiliary components.

6.

Show cable and conduit entry and exit points for proper wire gutter sizing and wire management.

c.

Provide final versions of panelboard schedule after load balancing tests.

d.

Source plant quality-control test reports.

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e.

1.4

1.6

1.

Manufacturer's written instructions for adjusting overcurrent protective devices.

testing

and

2.

Time-current curves, including selectable ranges for each type of overcurrent protective device.

COORDINATION : a.

1.5

Operation and maintenance data, which shall include :

Coordinate layout and installation of panelboards and components with other construction that penetrates walls or is supported by them, including electrical and other types of equipment, raceways, piping, and encumbrances to workspace clearance requirements.

DELIVERY, STORAGE AND HANDLING : a.

Inspect and report concealed damage to carrier within specified time.

b.

Handle carefully to avoid damage to panelboard internal components, enclosure, and finish.

c.

Store in a clean, dry environment. Maintain factory packaging and, if required, provide an additional heavy canvass or heavy plastic cover to protect enclosures from dirt, water, construction debris, and traffic.

WARRANTY : a.

The Contractor / Manufacturer shall warrant the panelboards free from defects in materials and workmanship for two (2) years from the date of acceptance of the work.

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Part 2 -

2.1

2.2

PRODUCTS :

PANELBOARDS : a.

Panelboards shall be standard manufactured products.

b.

All panelboards shall be completely factory-assembled with moulded-case circuit breakers and integral accessories, such as surge protective devices, metering devices, lighting controls, as per electrical load schedule and drawings.

c.

Panelboards shall have main breaker or main lugs, busbar size, voltage, phase, top or bottom feed, and flush or surface mounting as per electrical load schedule and drawings.

ACCEPTABLE PANELBOARD FABRICATORS : a. b. c. d. e. f.

2.3

Fuji-Haya Electric Corporation LJ Industrial / Tom’elekt Power System / Powerbox KC Industrial Corporation Asiaphil Industries, Inc. Edison Electric Controlgear Electric Corporation

ACCEPTACLE CIRCUIT BREAKER BRANDS : a. b. c. d. e. f. g. h. i. j.

Schneider Electric (Square-D / Merlin Gerin) ABB General Electric (GE) Siemens Eaton (Cutler Hammer) LS Industrial Mitsubishi Electric Fuji Electric Terasaki Hyundai Electric

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2.4

FABRICATION AND FEATURES : a.

b.

c.

Enclosures shall be surface-mounted or flush-mounted cabinet, as indicated in the electrical load schedule, and shall meet environmental conditions at installed location : 1.

Indoor

:

NEMA-1; for enclosures located inside pipe chase, use NEMA-4X.

2.

Outdoor

:

NEMA-3R as minimum, unless otherwise specified as NEMA-4X.

3.

Kitchen Area :

NEMA-4X, stainless steel.

Busbars shall be hard-drawn 99% copper. 1.

Busbars shall be sized based on the ampacity required per panelboard load schedule with reference to published copper mint certificates on busbars conductivity.

2.

Neutral and grounding busbars shall be separate for all panelboards. The neutral bus shall be insulated and isolated from both the grounding busbar and the cabinet enclosure.

3.

Neutral bus shall be 100% rated. Ground bus shall be minimum 50% rated.

Panelboard front shall be secured to box with concealed trim clamps. 1.

For surface-mounted fronts, match with box dimensions.

2.

For flush-mounted fronts, overlap the box.

d.

Panelboard front hinged cover shall utilize concealed hinges, unless otherwise noted.

e.

Panelboard enclosure box finish shall be manufacturer's standard enamel finish over corrosion-resistant treatment or primer coat.

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2.5

2.6

2.7

f.

Panelboard directory card shall be provided with transparent protective cover, mounted inside the metal frame, inside panelboard door.

g.

Main and neutral lugs shall be either compression or mechanical type suitable for use with conductor material.

h.

Provide 20 percent spaces for future breakers.

LIGHTING AND RECEPTACLE PANELBOARDS : a.

Main and branch protective devices in panelboards shall be of the bolt-on type circuit breakers.

b.

Branch circuit bolt-on circuit breakers shall be replaceable without disturbing adjacent units.

c.

Front-mounted door shall be with concealed hinges, secured with flush latch and with tumbler lock keyed alike.

POWER DISTRIBUTION PANELBOARDS : a.

Main and branch protective devices in panelboards shall be of the bolt-on type circuit breakers. Industrial-type breakers shall be used.

b.

Front-mounted door shall be secured with vault-type latch and with tumbler lock keyed alike.

TRANSIENT VOLTAGE SURGE SUPPRESSORS : a.

Transient voltage disturbances from commercial power systems associated with lightning storms and switching surges externally, as well as harmonics generated by variable speed drives, UPS and rectifiers equipment internally, may cause stress and damage to electrical equipment. Provide TVSS protective devices at designated panelboards as indicated in the electrical load schedule and drawings.

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2.8

CIRCUIT BREAKERS : a.

b.

2.9

Moulded-case circuit breakers shall be NEMA AB-1, with interrupting capacity to meet available fault currents. 1.

Thermal-magnetic circuit breakers shall be inverse timecurrent element for low-level overloads, and instantaneous magnetic trip element for short circuits. Adjustable magnetic trip setting for circuit breaker frame sizes of 250 A and larger.

2.

Current-limiting circuit breakers for frame sizes 400 A and smaller; let-through ratings less than NEMA FU 1, RK-5.

3.

GFCI-type circuit breakers shall be single-pole or twopole configurations with 5mA trip sensitivity.

Moulded-case circuit breaker features and accessories. 1.

Standard frame sizes, trip ratings, and number of poles.

2.

Lugs shall be either compression or mechanical type suitable for use with size, trip rating and conductor material.

3.

Use type SWD for switching fluorescent lighting loads, and type HACR for heating, air-conditioning, and refrigerating equipment.

4.

Shunt trip 240 V trip coil energized from separate circuit, shall be set to trip at 55 percent of rated voltage.

CONTROLLERS : a.

Motor controllers shall be NEMA ICS-2, Class A combination controller, cabinet mounted, including the following accessories : 1. 2. 3. 4. 5. 6. 7.

Individual control-power transformers. Fuses for control-power transformers. Bimetallic-element overload relay. Melting-alloy overload relay. Indicating lights. Seal-in contact. Four convertible auxiliary contacts.

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8. 9.

b.

Contactors shall be shall be NEMA ICS-2, Class A combination controller, cabinet mounted, including the following accessories : 1. 2. 3. 4. 5. 6. 7.

c.

2.10

Part 3 -

3.1

Pushbuttons. Selector switches.

Individual control-power transformers. Fuses for control-power transformers. Indicating lights. Seal-in contact. One convertible auxiliary contacts Pushbuttons. Selector switches.

Controller disconnect switches shall be adjustable instantaneous-trip circuit breaker, integrally mounted and interlocked with controller.

ACCESSORY COMPONENTS AND FEATURES : a.

Furnish accessory set including tools and miscellaneous items required for overcurrent protective device test, inspection, maintenance, and operation.

b.

Furnish portable test set to test functions of solid-state trip devices without removal from panelboard.

c.

Provide permanent fungicidal treatment for panelboard interior, including overcurrent protective devices and other components.

EXECUTION :

INSPECTION : a.

Examine surfaces to receive electrical panelboards for compliance with installation tolerances and other conditions affecting performance of the system. Do not proceed with installation until unsatisfactory conditions have been corrected.

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b.

3.2

3.3

Beginning of the installation shall mean that the Contractor accepts the jobsite conditions.

GENERAL : a.

Install panelboards and accessories as indicated in the electrical plans and drawings, according to NEMA PB 1.1, in compliance to the requirements of the NEC / PEC.

b.

Comply with mounting and anchoring requirements as specified in Section 26-05-48 “Vibration Isolation and Seismic Controls for Electrical Works”.

c.

Mounting heights shall be 1820mm above finished floor to top of the panelboard, unless otherwise indicated.

d.

Mounting shall be plumb and rigid without distortion of enclosure box. Mount recessed panelboards with fronts uniformly flushed with wall finish.

e.

Create a directory to indicate installed circuit loads after balancing panelboard loads. Obtain approval before installing. Use a computer to create directory, handwritten directories are not acceptable.

f.

Install filler plates in unused spaces.

g.

Use raceway and cable fittings compatible with raceways and cables, suitable for use and location.

h.

Wiring in panelboard gutters shall be arranged into groups and bundled and wrapped with wire ties after completing load balancing.

IDENTIFICATION : a.

Identify field-installed conductors, interconnecting wiring, and components. Provide warning signs as specified in Section 2605-00 "General Electric Works."

b.

Label each panelboard with engraved metal or laminated-plastic nameplate mounted with corrosion-resistant screws.

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3.4

3.5

CONNECTIONS : a.

Install equipment grounding connections for panelboards with ground continuity to main electrical ground bus.

b.

Tighten electrical connectors and terminals according to manufacturer's published torque-tightening values. If manufacturer's torque values are not indicated, use those specified in UL 486A and UL 486B.

FIELD QUALITY CONTROL : a.

b.

Prepare for acceptance tests as follows : 1.

Test insulation resistance for each panelboard bus, component, connecting supply, feeder, and control circuit.

2.

Test continuity of each circuit.

After installing panelboards and after electrical circuitry has been energized, demonstrate product capability and compliance with requirements. 1.

Perform each visual and mechanical inspection and electrical test indicated in NETA ATS, Section 7.6 for moulded-case circuit breakers. Certify compliance with test parameters.

2.

Correct malfunctioning units on-site, where possible, and retest to demonstrate compliance; otherwise, replace with new units and retest.

c.

After substantial completion, but not more than 60 days after final acceptance, measure load, conduct load balancing and make circuit changes.

d.

After substantial completion, but not more than 60 days after final acceptance, perform an infrared or thermographic scan of each panelboard. Remove panel fronts so that joints and connections are accessible to portable scanner.

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3.6

3.7

ADJUSTING : a.

Set field-adjustable switches and circuit-breaker trip ranges.

b.

Circuit breaker pick-up level and time delay settings shall be adjusted to values indicated on the coordination study as prepared by the Contractor / Panelboard Manufacturer as reviewed and approved by the Engineer.

CLEANING : a.

On completion of installation, inspect interior and exterior of panelboards. Remove paint splatters and other spots. Vacuum dirt and debris - do not use compressed air to assist in cleaning. Repair exposed surfaces to match original finish.

- END OF SECTION -

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SECTION 26 27 26

:

WIRING DEVICES

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

GENERAL :

SUMMARY : a.

This Section covers the work necessary to furnish and install wiring devices.

b.

Related Sections include the following : 1. 2. 3. 4.

1.2

1.3

Section 26-05-00 Section 26-05-19 Section 26-05-33 Section 26-05-26

: : : :

General Electrical Works. LV Wires and Cables. Raceways and Boxes Grounding and Bonding.

DEFINITIONS : a.

CO

:

Convenience outlet (Duplex)

b.

GFCI

:

Ground-fault current interrupter

c.

FCO

:

Floor-mounted convenience outlet

d.

SPO

:

Special purpose outlet

e.

TL

:

Twistlocking-type

f.

WP

:

Weatherproof

QUALITY ASSURANCE : a.

All wiring devices shall be brand new and shall obtained through one single source from a single manufacturer, and shall conform with Standards such as NEMA, UL, JIS and IEC.

b.

The manufacturer of the wiring devices shall be minimum ISO9001 : 2008 QMS Certified and approved by the Philippine Bureau of Product Standards (BPS).

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c.

1.4

Part 2 -

2.1

All wiring devices shall be listed and labeled as defined in NEC / PEC by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

SUBMITTALS DURING CONSTRUCTION : a.

Product data for each type of wiring devices indicated, including accessories.

b.

Sample board of for each type of wiring devices indicated, including accessories.

c.

Material certificates for type of raceways and boxes indicated.

d.

Source plant quality-control test reports.

PRODUCTS :

WALL SWITCHES : a.

Wall switches for lighting circuits shall be wide-series, totallyenclosed tumbler-type with phenolic compound bodies.

b.

Wall switches for lighting circuits rated at 15 amperes, 300 Volts, one-way, three-way, four-way, two-pole as indicated on the electrical plans and drawings. Certain combinations shall be furnished with pilot lights as required and where indicated on the drawings.

c.

Wiring terminals shall be screw-less, quick-connect type, with double-contacting points terminal spring and wire releasing button.

d.

Color plating and appearance of walls plates shall selected and approved by the Architect / Owner.

e.

Acceptable manufacturers Scheider/Clipsal, or Leviton.

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are

Panasonic,

Toshiba,

August 2019 Section 26-27-26 2 of 6

2.2

2.3

RECEPTACLE OUTLETS : a.

Receptacle outlets shall be wide-series, totally-enclosed, 3-wire parallel-slot grounding-type, with phenolic compound bodies, rated at 10 amperes, 250 Volts, single-receptacle or duplex convenience outlet type as indicated on the electrical plans and drawings.

b.

For all weather location, EPDM rubber gasketed-type weatherproof outlet assemblies shall be used as indicated on the electrical plans and drawings.

c.

For floor-mounted outlets, flush-mounted pop-up retractabletype floor convenience outlet assemblies shall be used as indicated on the electrical plans and drawings.

d.

For designated GFCI-type duplex convenience outlets as indicated on the electrical plans and drawings, the receptacle assembly shall have a built-in resetable earth leakage breaker with a nominal sensitivity to earth leakage current of 10 mA. The device shall function to interrupt the current supply for any value of earth leakage current above 10mA (±1mA) on the loadside of the device at a minimum tripping time of 1/30th of a second.

e.

Wiring terminals shall be screw-less, quick-connect type, with double-contacting points terminal spring and wire releasing button.

f.

Color plating and appearance of walls plates shall selected and approved by the Architect / Owner.

g.

Acceptable manufacturers Scheider/Clipsal, or Leviton.

are

Panasonic,

Toshiba,

SPECIAL PURPOSE OUTLETS : a.

Special purpose outlets shall be heavy-duty, totally-enclosed, grounding-type, with phenolic compound bodies, rated at 250 Volts, single-receptacle. The ampere rating, 3-wire or 4-wire outlet configuration, and parallel-slot, straight-blade or twistlocking-type configuration shall be as indicated on the electrical plans and drawings.

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2.4

2.5

b.

Matching plugs for the special purpose outlets shall also be provided.

c.

Raised cover plates as required by special purpose outlet assembly shall be provided.

d.

Wiring terminals for special purpose outlets shall be heavy-duty screw-type.

e.

Color plating and appearance of walls plates shall selected and approved by the Architect / Owner.

f.

Acceptable manufacturers Scheider/Clipsal, or Leviton.

are

Panasonic,

Toshiba,

WALL PLATES : a.

Wall plates for un-used utility outlet boxes shall be wide-series, interchangeable-type, totally-enclosed dust-proof with phenolic compound bodies, with color and appearance as approved by the Architect / Owner.

b.

Acceptable manufacturers are Scheider/Clipsal, or Leviton.

Panasonic,

Toshiba,

INDUSTRIAL-TYPE SOCKET AND PLUG SYSTEM : a.

Industrial-type sockets and plug system shall be heavy-duty, totally-enclosed, grounding-type, with polyamide-6 and ABS plastic bodies, rated at 400 Volts for three-phase and 230 Volts for single-phase, single-receptacle. The ampere rating, 3-wire or 4-wire outlet configuration, and locking-device configuration shall be as indicated on the electrical plans and drawings.

b.

The industrial-type socket and plug system shall be of makeand-break design, with contacts made of copper-zinc alloy nickel-plated for arc resistance and corrosion resistance, acting as a disconnecting means for electromechanical equipment such as ACCUs, fans and portable pumps, and shall comply with International Standard IEC 60309.

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Part 3 -

3.1

c.

For indoor application, IP-44 shall be used. For outdoor application, gasketed IP-67 shall be used. Hinged-type cover or bayonet system shall be utilized.

d.

As defined by IEC 60309-2, for 400 Volts three-phase system, red-colored industrial-type socket and plug system shall be used. For 230 Volts single-phase system, blue-colored system shall be used.

e.

Acceptable manufacturers are Mennekes, ABB, Bals Electric, or PCE Austria.

EXECUTION :

INSTALLATION : a.

Installation of wiring devices shall be as indicated in the electrical plans and drawings, in compliance to the requirements of the NEC / PEC.

b.

Install devices and wall plates flush and level. Plates shall be plumb and with edges in continuous contact with adjacent finished surfaces.

c.

Mounting heights of wiring devices shall be as approved by the Architect / Engineer or as follows :

d.

1.

Wall switches – 1370mm above finished floor line to center of device. The OFF position shall face down.

2.

Convenience outlets – 300mm above finished floor line to center of device. The grounding slot shall be at the topside.

3.

Counter-mounted convenience outlets - 150mm above working counter finish to center of device. The grounding slot shall be at the topside.

4.

Special purpose outlets – install at heights, shown on the electrical construction drawings or based on the interior designer’s detailed drawings.

Install blank and device cover plates on switches, receptacles and boxes.

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3.2

e.

Provide weatherproof, gasketed-type cover plates on flush mounted devices where shown, type and configuration to suit flush device and its orientation.

f.

Provide GFCI-type receptacles in accordance with NEC / PEC requirements of "ground fault protection for personnel" in bathrooms, garages, and receptacles mounted outside, and within 1800mm of sinks in kitchen areas.

g.

Install wiring at outlets with at least 200mm of slack conductor at each outlet. Pigtailing of conductors is not permitted.

h.

Connect outlet and component connections to wiring systems and to ground. Tighten all electrical connectors and terminals according to manufacturer’s published torque-tightening values.

i.

Remove wall plates and protect devices and assemblies during painting.

FIELD QUALITY CONTROL : a.

b.

Perform the following field tests and inspections and prepare test reports :

1.

After installing wiring devices, check for damaged conductors and defective devices. After the electrical circuitry has been energized, test for proper polarity, ground continuity, and compliance with requirements.

2.

Test GFCI operation with fault simulations according to manufacturer's written instructions.

Remove malfunctioning units and replace with new, and retest as specified above.

- END OF SECTION -

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SECTION 26 32 13

:

ENGINE GENERATOR SETS

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

GENERAL:

SUMMARY: a.

Furnish and install the a complete designed-and-manufactured emergency back-up power system consisting primarily of three (2) units of 800KW (1000KVA) standby diesel-driven enginegenerators for Mixed-use development, complete with synchronizing panel with automatic start/stop, load shedding and paralleling functions, as specified herein and as shown on the electrical plans and drawings.

b.

Each individual generator unit shall be of standby power at 0.8 power factor, 400 Volts line-to-line / 230 Volts line-to-neutral, 3-phase, 60 Hertz, 1800 RPM. The supplier shall be fully qualified and authorized to provide service and parts for both the engine and alternator at anytime of the day or night ( 24 / 7 service ).

c.

The generator synchronizing panel (GSP) consisting paralleling sections for individual generators, totalizing section, and feeder sections shall be superior and reliable for the successful operation of the system required.

d.

Related Sections in the Electrical trade include the following : 1. 2. 3. 4. 5.

e.

Section 26-05-00 Section 26-05-19 Section 26-05-26 Section 26-05-33 Section 26-05-48

: : : : :

General Electrical Works. Low-Voltage Wires & Cables. Grounding and Bonding. Raceways and Boxes. Vibration Isolation and Seismic Control

Related Sections in the Mechanical trade include the following: 1. 2.

Mechanical vibration and seismic controls for muffler and exhaust piping supports. Pipe Insulation for muffler and exhaust pipe insulation.

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3. 4. 5.

1.2

1.3

Fuel oil distribution system for interior fuel piping and fuel storage tank. Hydronic piping for coolant piping external to engine generator. Metal ducts for combustion air and radiator fan discharge connections.

WORK INCLUDED: a.

Engine – generators.

b.

Generator synchronizing panel (GSP).

c.

Critical-type exhaust silencer system.

d.

Skid-mounted fuel day tanks.

e.

Batteries and battery chargers.

f.

Cabling system from engine-generators to GSP.

g.

Signal wiring system from ATS units to GSP.

LOCATION CRITERIA: The engine-generator system and accessories described herein shall be fully capable of operation as specified in the following environmental conditions:

1.4

a.

Ambient temperature

-

40ºC

b.

Altitude

-

300 meters above sea level

c.

Seismic

-

UBC Zone-4

QUALITY ASSURANCE: a.

The emergency generator back-up power system shall be engineered products. The assemblies shall be constructed, wired and tested in accordance with all applicable sections of the latest Standards and Codes, particularly ANSI C50.13.89, NEMA MG1,

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NEMA MG2,C37.51, ASTM D396, NEMA SG-5, NEMA AB-1 and NEC / PEC.

1.5

b.

The emergency generator back-up power system manufacturer / supplier shall have specialized in the manufacture and assembly of engine-generator sets and synchronization panel assemblies for minimum of ten (10) years, and shall be minimum ISO-9001 : 2008 QMS Certified.

c.

All emergency generator back-up power system components shall be brand new and shall be obtained through one single source from a single manufacturer.

d.

The generator synchronization panel (GSP) overcurrent protective devices, and associated auxiliary equipment shall comply with the latest edition of the NFPA-70 (National Electrical Code) and Philippine Electrical Code.

e.

All testing of the engine-generator equipment shall be accomplished using coolant, fuel and lubricating oil as specified herein. Where generator synchronizing panel (GSP) is used, there shall be a system test at the factory. Where enginegenerators and GSP are manufactured and tested by two different companies, arrangements shall be made for a system factory test.

SUBMITTALS: a.

Product data for the following components: 1.

Engine manufacturer’s catalog cut sheets, performance data, detailed drawings, power output curves, and fuel consumptions curves which relate to the design criteria specified.

2.

Generator manufacturer’s catalog cut sheets, detailed drawings and performance data.

3.

Complete list of materials and catalog cuts of all components being provided.

4.

Complete detailed wiring diagram of the engine-generator system.

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b.

5.

Starting battery sizing calculations showing compliance with the specifications at ambient conditions.

6.

After the engine-generator system is accepted, submit a completed permit application for the local DENR - Air Quality Management District, ready for submission by the Owner.

Shopdrawings with dimensioned plans, elevations, sections, and details for engine-generator system and related equipment. 1.

Show tabulations of installed devices, equipment features, and ratings.

2.

Show all wiring diagrams for power, signal and control wiring.

3.

For generator synchronization panel fabrication shop drawing, indicate the following : -

-

c.

d.

bus configuration, current, and voltage ratings. short-circuit current rating of the overcurrent protective devices. features, characteristics, ratings, and factory settings of individual overcurrent protective devices and auxiliary components. Show cable and conduit entry and exit points for proper wire management.

Test reports, which shall include: 1.

Certified factory system test reports.

2.

Certified field system test reports.

Installation manual, which shall include: 1.

Engine-generator noise levels at various distances from the equipment.

2.

Allowable engine exhaust restriction if using an exhaust extension.

3.

Allowable engine-generator cooling air discharge restriction if cooling air is ducted away from the equipment.

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e.

1.6

4.

Elevation and distance limits for location of external fuel supply.

5.

Instructions for installation of all equipment, non-integral components, and accessories.

6.

Instructions for aligning the genset before initial startup and after disassembly.

Operation and maintenance data, which shall provide the enginegenerator operator with information on : 1.

Specific instructions to identify and understand the function of each operator control.

2.

Specific set of detailed instructions for starting, operating and stopping the generator system.

3.

Specific list of things to check each time the generator equipment is started.

4.

Specific schedule of routine maintenance items such as lube oil changes, filter changes, etc.

5.

All applicable cautions, warnings and dangers for operation of the generator equipment.

6.

Complete list of acceptable lube oil, fuel oil, engine coolant, battery acid, etc., including the parts manual and source of supply for each part and contact details.

7.

Manufacturer's written instructions for testing and adjusting overcurrent protective devices.

8.

Time-current curves, including selectable ranges for each type of overcurrent protective device.

COORDINATION: a.

Provide coordination drawings of floor plans showing dimensioned layout, required working clearances, and required area above and around the engine-generator equipment where pipe and ducts are prohibited. Show the engine-generator equipment layout and relationships between components and

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August 2019 Section 26-32-13 5 of 22

adjacent structural and mechanical elements. Show support locations, type of support, and weight on each support. Indicate field measurements.

1.7

1.8

b.

Coordinate layout and installation of engine-generator and synchronization panel equipment and components with other construction that penetrates ceilings or is supported by them, including conduit, piping, equipment, and adjacent surfaces. Maintain required clearances for workspace and equipment access doors and panels.

c.

Coordinate size and location of concrete pads and appropriate vibration isolators.

DELIVERY, STORAGE AND HANDLING: a.

Deliver engine generator set and system components to their final locations in protective wrappings, containers, and other protection that will exclude dirt and moisture and will prevent damage from construction operations. Remove protection only after equipment is safe from such hazards.

b.

The engine-generator skid base shall be equipped with towing and lifting provisions for lifting and/or towing of the generator equipment without damage using a forklift, crane, or hoist.

WARRANTY: a.

Part 2 2.1

The Contractor / Manufacturer shall warrant the engine-generator system assemblies free from defects in materials and workmanship for two (2) years from the date of acceptance of the work.

PRODUCTS: ENGINE: a.

The engine shall be diesel fueled with number 2 diesel oil, 1800 rpm, compression ignition type, four stroke-cycle, water cooled, solid injection, V-type configuration, turbo charged.

b.

The net brake horsepower of the engine at rated operation speed shall not be less than 1.45 times the rated standby electric

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kilowatt rating of the engine generator. Net brake horsepower is defined as the horsepower that the fully derated bare engine can deliver minus the power required by accessories.

2.2

c.

Fuel consumption of the engine generator shall be substantiated by means of manufacturer’s published curves.

d.

The engine shall be equipped with an electro-hydraulic governor to maintain engine speed within limits specified herein. Governor shall be adjustable from isochronous to five (5) percent droop. Frequency shall be factory set at rated. Provision shall be made to run the engine at idle speed for test and startup purposes.

e.

Engine safety devices, including high water temperature switch, overspeed sensing switch, low oil pressure switch, and low water temperature switch, shall be mounted on the engine and connected to the engine/generator control panel instruments and alarm as specified herein.

f.

Engine wiring shall be high quality, heat resistant, insulated, stranded copper conductor. Wiring shall be protected with suitable woven loom protection and shall be isolated from high temperature engine parts. Wiring for alternating current power circuits shall be protected by intermediate metal conduit or liquidtight flexible metallic conduit.

ELECTRIC STARTING SYSTEM: a.

An electric starting motor with solenoid and either Bendix or overrunning clutch drive shall be furnishes on the engine. The starting motor shall be of the required voltage and ampere rating.

b.

Provide a system of nickel cadmium (or lead acid) batteries sized with capacity for four (4) sixty-second complete cranking cycles at firing speed and specified ambient temperature. Provide matching rack and cables of sufficient ampacities.

c.

Provided a wall mounted 220 volt AC battery charger to recharge batteries to full capacity within 8 hours. Battery charger shall have rate and low rate charging system. The battery charger shall be current limiting and shall not require cranking cutout contacts for charger protection when cranking. Accessories shall include DC ammeter, fused input, DC voltmeter, high/low DC output voltage relay and input voltage failure relay. Battery

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charger output shall be rated ten (10) amperes at required voltage. d.

2.3

ENGINE HEATING SYSTEMS: a.

2.4

2.5

The entire electric starting system shall be rated for 24 Volts DC operation.

Jacket water heaters, rated for operation on 220 VAC power shall be provided and shall be sized to insure that set will start within the specified time period and ambient conditions. Heaters shall include thermostats, oil pressure disconnecting device and required connection boxes.

ENGINE COOLING SYSTEMS: a.

The engine shall be liquid-cooled by means of engine-mounted vertical core radiator. The radiator shall be adequately sized to cool the engine on a continuous basis at specified environmental conditions. It shall have an air flow restriction of not more than 12 millimeters Hg. Suitable expansion space, either by means of surge tanks or radiator top tank shall be provided. The cooling system shall allow proper deration for the engine. An engine driven propeller-type fan shall be provided. An adaptor flange shall be included for flexible connection provided by another trade.

b.

The engine shall be equipped with a centrifugal type water circulating pump and thermostat valve to maintain the engine at recommended temperature level.

c.

The engine cooling system shall include one or more spin-on type engine water filters which will treat the coolant and prevent corrosion and scale deposits inside the cooling system.

AIR INTAKE AND EXHAUST SYSTEM: a.

b.

An air cleaner/silencer shall be furnished as recommended by the engine manufacturer. Air cleaners shall be oil bath type with replaceable elements. Engine exhaust outlets shall be coupled to the exhaust silencer by means of an adequately sized section of stainless steel

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corrugated flexible tubing. Flexible tubing connector shall be flanged at both ends for mating to the engine and exhaust system. c.

2.6

A critical grade exhaust silencer shall be provided for maximum high degree silencing. Exhaust silencer shall be sized to limit exhaust backpressure to acceptable values. The exhaust silencer shall be suitable for horizontal mounting, shall be equipped with flanged bottom inlet and flanged end outlet. The exhaust silencer shall be double wall construction and shall have a high temperature anti-corrosion coating applied uniformly on the outside surface.

FUEL SYSTEM: a.

Provide a 854 gallons / 3234 liters (or equivalent 8-hours capacity at full-load condition) “ready-supply”, packaged skidmounted fuel day tank to provide an immediate fuel supply to the engine fuel pump upon start-up. Fuel is to be supplied to the tank by means of electric fuel transfer pump mounted on day tank. Equip tank with an automatic float to control the day tank level with a low level contact (nearly empty) for remote alarm indication. Fill connection shall be via two (2) flexible metal hoses. A drain cock and valve shall be provided.

b.

Fuel lines between injection pumps and valves shall be of heavy seamless tubing and to eliminate irregularity of fuel injections, shall be of the same length for all cylinders.

c.

The fuel system shall be equipped with a fuel filter having replaceable elements which may be easily removed from their housing for replacing without breaking any fuel line connections or disturbing the fuel pumps or any other parts of the engine. All fuel filters shall be conveniently located in one accessible housing, ahead of the injection pumps, so that the fuel will have been thoroughly filtered before it reaches the pumps. No screens or filters requiring cleaning or replacement shall be used in the injection pump or injection assemblies.

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2.7

2.8

ALTERNATOR: a.

The generator shall be rated 400/230 volts, three phase, wye configuration, 60 Hertz, 2 - 800KW (1000KVA), 0.8 power factor, 1800rpm.

b.

The alternator shall be a four (4) pole, synchronous brushless type. The alternator shall be single bearing type directly coupled to the engine flywheel.

c.

The alternator voltage regulator shall be solid state type three phase true RMS sensing and shall incorporate an underfrequency protective circuit to limit generator excitation at lower than normal operating speeds. The voltage regulator shall be equipped with a voltage adjusting rheostat capable of plus or minus five (5) percent rated voltage adjustment. The voltage regulator shall maintain the voltage within the limits specified.

d.

The alternator insulation system shall be NEMA Class H in accordance with BS and IEEE standards. The alternator shall be sized and properly derated according to NEMA MG-1 to yield a maximum temperature rise of 130°C by resistance above an ambient temperature of 40°C at rated altitude.

e.

Excitation shall be provided by a direct connected brushes permanent magnetic rotating exciter. The armature shall be of the three phase design and connected to a full wave three phase rotating bridge. Diodes used shall be of the silicon type mounted on proper heat sinks with surge protector to prevent voltage spikes during parallel operation.

f.

Exciter field power shall be provided by a separate permanent magnet generator directly connected to the brushless exciter. The PMG shall provide sufficient power to the excitations system to produce 300% short circuit from the main operator armature during a three phase fault with sufficient duration for protective devices to operate.

CONTROL PANEL: a.

A free standing, louvered, control panel shall be provided with lockable hinged front door. The enclosure shall be mounted on vibration isolators to protect the control panel and control components from generator equipment vibrations.

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b.

The following shall be included in the control panel : 1.

Main line circuit breaker which shall operate both manually as an isolation switch and automatically during overload and short circuit conditions. The trip unit for each pole shall have elements providing inverse time delay during overload conditions and instantaneous magnetic tripping for short circuit protection. Circuit breaker shall be suitable for 100% load. The circuit breaker shall be provided with an auxiliary contact to provide a trouble indication should the breaker be in the off or tripped position.

2.

Emergency power off (EPO) button.

3.

Generator controller panel-mounted LCD digital multifunction meter, properly connected for the required function, and shall include but not be limited to the following parameter items on display : Amperes, 3-phase, line-to-line, line-to-neutral Voltage, 3-phase, line-to-line, line-to-neutral Power, in KW / KVA / KVAr Frequency Power factor Elapse time Engine water temperature Engine oil temperature Engine oil pressure

4.

Generator controller panel-mounted LCD shall also display and provide fault sensors to cause emergency engine shutdown when any of the following occur : High water temperature (sensors to trip at 98ºC) Low water temperature (sensors to trip at 27ºC) Overspeed (sensors to trip at 2050 rpm) Low lube oil pressure (sensors to trip at engine manufacturer’s recommendation on lowest permissible oil pressure) Overcrank (sensors to trip after four 15 seconds attempt to start)

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2.9

REMOTE STATUS ANNUNCIATOR PANEL: a.

2.10

2.11

Provide one (1) panel per generator set located at the Engineering Office. The remote status annunciator panel shall digital multi-function type and shall have the same LCD display and alarm functions as the generator control panel.

VIBRATION ISOLATORS: a.

The engine-generator equipment shall be equipped with appropriately sized heavy-duty rubber-type vibration isolator between the engine-generator and the skid base and spring- type vibration isolators between the skid base and the concrete base pad. Refer to details on Section 26-05-48 “Vibration Isolation and Seismic Control”.

b.

Critical-type exhaust muffler system shall be provided with appropriate spring-type vibration isolators.

c.

Fuel oil and coolant line shall be provided with flexible braided bronze hoses.

d.

Raceway connections to unit shall be in liquid-tight flexible metallic conduit.

GENERATOR SET PERFORMANCE: a.

The completed generator set shall meet or exceed the following performance criteria: 1.

Voltage regulation shall be ±1 percent rated voltage.

2.

Steady state voltage stability ±0.5 percent rated voltage.

3.

Maximum voltage dip with step application of rated continuous engine generator rating at 0.8 power factor not to exceed 20 percent.

4.

Voltage recovery time with step application of rated continuous engine-generator rating at 0.8 power factor not to exceed 2 seconds.

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2.12

5.

Balanced telephone interference factor (TIF) shall not exceed 50.

6.

Frequency regulation from no load to full load adjustable from isochronous to 5 percent.

7.

Steady state frequency stability shall be ±0.5 percent.

8.

Maximum recovery time to return to frequency stability, bandwidth shall not exceed 4 seconds.

9.

Generator set shall be capable of start-up and accepting rated load within 10 seconds.

MULTIPLE GENERATOR SETS – AUTOMATIC PARALLELING WITH LOAD SENSING / LOAD SHARING: a.

Each generator set will automatically start, attain rated speed and voltage, and accept and share load. Starting and stopping sequence can be initiated manually or automatically by closing and opening of a contact.

b.

Each set shall immediately shut down in the event of overspeed, low oil pressure, high water temperature, overcrank. Include high oil temperature and high crankcase pressure shutdown as standard. The cause of shutdown shall be indicated and logged in the LCD display of the generator controller. System logic shall prevent restart until fault is cleared.

c.

There shall be a provision for manual shutdown in the event of an emergency via EPO button.

d.

Each generator set shall be capable of paralleling manually and automatically to the system bus. Appropriate monitors and safety devices will be included to provide system protection while paralleling and operating on the system bus.

e.

Automatic operation shall include control devices to compare and adjust on coming units to frequency and phase of system bus sense matching within acceptable limits, and signal closure of the circuit breaker. Control circuits shall prevent more than one circuit breaker from simultaneously closing onto the said system bus.

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2.13

f.

Load sensing circuits shall compare system requirements with onbus generator capacity. Generator sets will automatically be added and removed from the bus according to system load demand settings.

g.

The first generator set up to speed and on-line shall engage the system bus and serve the building life safety loads. All other building be served as the remaining generators come on-line.

SYNCHRONIZING PANEL ( FEEDER SECTION ): a.

The generator synchronizing panel (GSP) shall be factoryassembled and tested and in accordance with IEEE C37.20.1.

b.

The GSP enclosure material shall be steel, finished with manufacturer's standard gray finish over a rust-inhibiting primer on phosphatizing-treated metal surfaces.

c.

The GSP shall be NEMA Type 1A, fully-gasketed. Where installed within the sprinkled areas, the GSP shall be rain-tight NEMA 3R.

d.

The GSP shall be rear-accessible type. The GSP enclosure shall be fabricated with removable, hinged, rear cover panels, secured by captive thumbscrews, to allow access to rear interior of switchgear.

e.

Circuit-breaker compartments shall be equipped to house drawout-type circuit breakers and shall be fitted with hinged outer doors. All air circuit breakers shall have an LSIG protective function.

f.

Busbars shall be hard-drawn 99% copper. 1.

Busbars shall be sized based on the ampacity required per electrical load schedule with reference to published copper mint certificates on busbars conductivity.

2.

Main phase bus shall be of uniform capacity for the entire length of the GSP assembly.

3.

Neutral bus shall be 100% rated. Ground bus shall be minimum 50% rated. The neutral bus shall be insulated and isolated from both the grounding busbar and the GSP enclosure.

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4.

Contact surface of buses and feeder circuit breaker load terminals shall be silver-plated.

5.

Busbars shall be adequately braced and supported for indicated short-circuit currents.

6.

Each individual phase and neutral bus shall be factorycovered by flame-retardant 105°C insulating tape, with minimum dielectric strength of 9.5KV. Bus joints shall be completely insulated. The color-coding of insulating tape shall be as follows : a. b. c. d.

g.

h.

Phase-A Phase-B Phase-C Neutral

: : : :

Black Red Yellow White

The GSP auxiliary compartments shall include the following : 1.

Utility metering compartment that complies with utility company requirements.

2.

Bus transition sections.

3.

Incoming-line pull sections.

4.

Hinged front panels for access to metering, accessory, and blank compartments.

5.

Wire management gutter (pulling box) on top of switchgear for extra room for pulling cable, with removable top, front, and side covers and ventilation provisions adequate to maintain air temperature in pull box within same limits as switchgear.

Instrument transformers shall comply with IEEE C57.13. 1.

Potential Transformers: Secondary-voltage rating of 240 V and NEMA accuracy class of 0.3

2.

Current Transformers: Ratios as indicated; burden and accuracy class suitable for connected relays, meters, and instruments.

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i.

Digital multifunction metering monitor shall be UL-listed or ULrecognized, microprocessor-based unit suitable for three-wire or four-wire systems and with the following features: 1.

Inputs from sensors or 5-A current-transformer secondaries, and potential terminals rated to 600 V.

2.

Switch-selectable digital display of the following : -

-

Phase Currents, Each Phase: Plus or minus 1 percent. Phase-to-Phase Voltages, Three Phase: Plus or minus 1 percent. Phase-to-Neutral Voltages, Three Phase: Plus or minus 1 percent. Three-Phase Real Power: Plus or minus 2 percent. Three-Phase Reactive Power: Plus or minus 2 percent. Power Factor: Plus or minus 2 percent. Frequency: Plus or minus 0.5 percent. Integrated Demand, with Demand Interval Selectable from 5 to 60 Minutes: Plus or minus 2 percent. Accumulated energy, in megawatt hours (joules), plus or minus 2 percent; stored values unaffected by power outages for up to 72 hours.

3.

Display and control unit flush or semiflush mounted in instrument compartment door.

4.

Acceptable digital multifunction meter manufacturers are PML ION, General Electric, Schneider Electric (Square-D), Landis + Gyr, EDMI Genius, Socomec Diris, or approved equal.

j.

Transient voltage disturbances from commercial power systems associated with lightning storms and switching surges externally, as well as harmonics generated by variable speed drives, UPS and rectifiers equipment internally, may cause stress and damage to electrical equipment. Provide service-entrance type TVSS protective devices at the LVSGs as indicated in the electrical load schedule and drawings.

k.

Air circuit breakers shall comply with NEMA SG-3, ANSI C37.50, with interrupting capacity to meet available fault currents.

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1.

Air circuit breakers shall be draw-out type, manually or electrically operated, as indicated on the electrical drawings.

2.

Breakers of like frame sizes shall be interchangeable as standard. No special structure bracing shall be required.

3.

All circuit breaker operating mechanisms are to be twostep, fully stored energy devices for quick-make, quickbreak operation. Actuation of the operating handle or an operation cycle of the circuit breaker motor is to charge the closing springs (step1) and operation of a local "close" button is to close the circuit breaker contact (step2). Closing the circuit breaker contacts shall automatically charge the opening springs.

4.

The circuit breaker shall be covered in the front such that when installed in an enclosure cell with a solid hinged door a double barrier shall exist between operating personnel, the circuit breaker mechanism and live parts. The circuit breakers are to mount on a rigid, self-aligning draw-out mechanism with "connected", "test", disconnected", and "removed" positions. The front door shall be capable of being closed in the "connected", "test" or "disconnected" positions.

5.

Padlocking provisions shall be furnished to receive up to three padlocks when circuit breaker is in the open position, positively preventing unauthorized closing of the circuit breaker contacts. A manual trip button and position indicator shall be furnished on all circuit breakers. "Push to Close" button shall be conveniently located on face of circuit breaker for easy access, thereby avoiding the need to reach behind or around other devices located on the face of the circuit breaker.

6.

Provide interlocks so that the circuit breaker must be open before it can be moved from any position when it is between positions. Include an interlock to discharge the stored energy spring before the circuit breaker element can be withdrawn from its cell. In the "test" and "connected" positions, provide a positive ground contact between the circuit breaker element and the structure.

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l.

2.14

7.

The trip device shall be provided with an adjustable longtime delay, instantaneous, short-time delay, overcurrent/short circuit protection. Include ground fault tripping as an integral part of the solid-state trip device. Provisions for self-testing shall be provided.

8.

Lugs shall be either two-hole long-barrel compression type suitable for use with size, trip rating and conductor material.

Moulded-case circuit breakers shall be NEMA AB-1, with interrupting capacity to meet available fault currents. 1.

Thermal-magnetic circuit breakers shall be inverse timecurrent element for low-level overloads, and instantaneous magnetic trip element for short circuits. Adjustable magnetic trip setting for circuit breaker frame sizes of 250 A and larger.

2.

MCCBs shall be of standard frame sizes, trip ratings, and number of poles.

3.

Lugs shall be either compression or mechanical type suitable for use with size, trip rating and conductor material.

ACCEPTABLE MANUFACTURERS ( ENGINE – GENERATORS ): The electrical plans and equipment specifications are based upon engine-generator physical sizing criteria of one particular manufacturer. The Contractor shall responsible for modifications necessary in the use of a proposed manufacturer. These modifications are to include all mechanical and electrical work, architectural work and structural work. The following manufacturer’s are acceptable : a.

Engine: 1. 2. 3. 4. 5.

Caterpillar Cummins Detroit Diesel Mitsubishi MTU

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b.

Alternator (Generator): 1. 2. 3. 4. 5. 6.

c.

Daytank: 1. 2. 3.

c.

Woodward Basler Electric

Generator Controller (Electronic): 1. 2. 3. 4.

f.

Amber-Booth Mason Industries Vibration Eliminator Co. Vibration Mounting & Controls, Inc. Vibrex Vibration Control Systems

Electronic Governor: 1. 2.

e.

Simplex Pryco Tramont

Vibration Isolators: 1. 2. 3. 4. 5.

d.

Caterpillar Cummins - Onan Stamford Leroy-Somer Marathon Mecc Alte

Caterpiller Cummins – Power Command Deepsea Electronics Datakom

Circuit Breakers: 1. 2. 3. 4. 5. 6. 7.

General Electric (GE) Schneider Electric (Square-D / Merlin Gerin) Asea Brown Boveri (ABB) Siemens LS Industrial Fuji Electric Mitsubishi Electric

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8. 9. 10.

g.

3.1

3.2

Terasaki Hyundai Electric

Batteries: 1. 2. 3.

Part 3 -

Eaton (Cutler Hammer)

Nife Exide Motolite

EXECUTION:

INSPECTION: a.

Examine surfaces to receive the engine-generator and synchronization panel equipment for compliance with installation tolerances and other conditions affecting performance of the system. Do not proceed with installation until unsatisfactory conditions have been corrected.

b.

Beginning of the installation shall mean that the Contractor accepts the jobsite conditions.

GENERAL: a.

Install engine-generator and synchronization panel equipment assemblies and accessories as indicated in the electrical plans and drawings, according to ANSI C50.13.89, NEMA MG1, NEMA MG2,C37.51, ASTM D396, NEMA SG-5, NEMA AB-1, and in compliance to the requirements of the NEC / PEC.

b.

Comply with mounting and anchoring requirements as specified in Section 26-05-48 “Vibration Isolation and Seismic Controls for Electrical Works”.

c.

Anchor GSP assembly to 100-mm (4-inch), channel-iron floor sill embedded in floor or concrete base and attach by bolting.

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3.3

3.4

3.5

IDENTIFICATION: a.

The engine-generator equipment shall have a permanently attached nameplate in a visible location on the outside of the equipment.

b.

Identify field-installed conductors, interconnecting wiring, and components. Provide warning signs as specified in Section 26-0500 "General Electric Works."

c.

Label each GSP section with engraved metal or laminated-plastic nameplate mounted with corrosion-resistant screws.

CONNECTIONS: a.

Ground equipment according to Section 26-05-26 : “Grounding and Bonding”.

b.

Connect wiring according to Section 26-05-19 : “Low-Voltage Wires and Cables”.

c.

Hoses shall be installed with no sharp bend or twisting, and shall not contact any adjacent structures (to avoid rubbing).

d.

Install piping adjacent to packaged engine generator to allow service and maintenance.

e.

Connect water supply to cooling system.

f.

Connect critical-type exhaust system piping to diesel engines.

FIELD QUALITY CONTROL: a.

b.

Prepare for acceptance tests as follows: 1.

Test insulation resistance for each GSP bus, component, connecting supply, feeder, and control circuit.

2.

Test continuity of each circuit.

After installing the engine-generator and GSP equipment, demonstrate product capability and compliance with requirements.

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3.6

1.

Perform each visual and mechanical inspection and electrical test indicated in NETA ATS for circuit breakers. Certify compliance with test parameters.

2.

Generator system test (engine-generators synchronization panel functional tests).

3.

Coordinate tests with tests for automatic transfer switches and run them concurrently.

4.

Tests recommended by the equipment manufacturer.

5.

Exhaust emissions tests.

and

CLEANING: a.

On completion of installation, inspect the engine-generator equipment and the interior and exterior of the GSP. Remove paint splatters and other spots. Vacuum dirt and debris - do not use compressed air to assist in cleaning. Repair exposed surfaces to match original finish.

- END OF SECTION -

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SECTION 26 36 23

:

AUTOMATIC TRANSFER SWITCHES ( ATS )

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

GENERAL :

SUMMARY : a.

Furnish and install automatic transfer switches (ATS) assemblies of number, ratings, size and arrangement as specified herein and as shown on the electrical plans and drawings.

b.

Related Sections include the following : 1. 2. 3.

1.2

Section 26-05-00 Section 26-05-19 Section 26-05-26

: : :

General Electrical Works. Low-Voltage Wires & Cables. Grounding and Bonding.

QUALITY ASSURANCE : a.

The automatic transfer switches (ATS) shall be engineered products. The assemblies shall be constructed, wired and tested in accordance with all applicable sections of the latest Standards and Codes, particularly UL 1008, NEMA ICS 10, NFPA 110, IEEE 446, IEC 60439-1, IEC 60947, and the NEC / PEC.

b.

The ATS manufacturer shall have specialized in the fabrication of automatic transfer switches (ATS) assemblies for minimum of ten (10) years, and shall be minimum ISO-9001 : 2008 QMS Certified.

c.

All ATS components shall be brand new and shall be obtained through one single source from a single manufacturer.

d.

All ATS protective devices, and associated auxiliary equipment shall comply with the latest edition of the NFPA-70 (National Electrical Code) and Philippine Electrical Code.

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1.3

1.4

1.5

SUBMITTALS : a.

Manufacturer’s catalog cut sheets and performance data, including detailed wiring diagram of the system and all nameplate information.

b.

Detailed shopdrawings showing dimensioned plans, elevations, sections, and details showing minimum clearances, conductor entry provisions, gutter space, installed features and devices, and material lists which relate to the design criteria specified.

c.

Operation and maintenance data.

COORDINATION : a.

Provide coordination drawings of floor plans showing dimensioned layout, required working clearances, and required area above and around the ATS where pipe and ducts are prohibited. Indicate field measurements.

b.

Coordinate layout and installation of ATS and LVSG components with other construction, including conduit, piping, equipment, and adjacent surfaces. Maintain required clearances for workspace and equipment access doors and panels.

c.

Coordinate size and location of concrete bases.

DELIVERY, STORAGE AND HANDLING : a.

Deliver the ATS in sections of lengths that can be moved past obstructions in delivery path.

b.

Store the ATS indoors in clean dry space with uniform temperature to prevent condensation. Protect the LVSG from exposure to dirt, fumes, water, corrosive substances, and physical damage.

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1.6

WARRANTY : a.

Part 2 -

2.1

The Contractor / Manufacturer shall warrant the ATS assemblies free from defects in materials and workmanship for two (2) years from the date of acceptance of the work.

PRODUCTS :

AUTOMATIC TRANSFER SWITCHES ( ATS ) : a.

The automatic transfer switches (ATS) shall be UL-1008, 4-pole, double-throw type, 100% equipment rated for continuous duty, draw-out construction, electrically-operated, mechanically-held open-contactor type without integral overcurrent protection. The ATS controller shall be a microprocessor-based intelligent circuit and control panel.

b.

Automatic transfer switches shall be completely factoryassembled and wired such that only external circuit connections are required in the field.

c.

Each ATS shall be equipped with an integral bypass isolation switch, except for the ATS specifically assigned for the fire pumps loads.

d.

The ATS shall be of the same enclosure as the low-voltage switchgears (LVSG), NEMA Type 1A, fully-gasketed. Where installed within the sprinkled areas, the ATS shall be rain-tight NEMA 3R. Enclosures shall be given a phosphate treatment, painted with rust-inhibiting primer, and finish-painted with the manufacturer's standard enamel or lacquer finish.

e.

The ATS enclosure shall be constructed so that personnel are protected from energized bypass-isolation components during automatic transfer switch maintenance. ATS components shall be removable without disconnecting external source or load power conductors. Provide viewing ports so that contacts may be inspected without disassembly.

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f.

ATS control mechanism shall be actuated by an electrical operator, electrically and mechanically-interlocked so that the main contact cannot be closed simultaneously in either normal and emergency position. Contact transfer time shall not exceed 6 cycles.

g.

ATS main phase contacts and fully-rated neutral contacts shall be silver alloy. Arcing contacts shall be separate from the main contacts.

h.

Each individual phase and neutral line shall be factory-covered by flame-retardant 105°C insulating tape, with minimum dielectric strength of 9.5KV, with color-coding as follows : 1. 2. 3. 4. 5.

i.

Phase-A Phase-B Phase-C Neutral Ground

: : : : :

Black Red Yellow White Green

The ATS features shall include : 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

Undervoltage sensing for each phase of normal source. Adjustable time delay for override of normal-source voltage sensing delays transfer and engine start signals. Voltage / frequency lock-out relay. Adjustable time delay to retransfer to normal source. Test switch to simulate normal-source failure. Switch position pilot lights. Source available indicating lights. Unassigned auxiliary contacts. Transfer override switch. Engine starting contacts. Engine shutdown contacts. Engine-generator exerciser.

j.

The control module shall control operation of the ATS, provide indication of switch status and shall be equipped with alarm diagnostics.

k.

Devices for communicating with remote-programming devices, annunciators, or control panels shall be open-protocol communication capability match.

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2.2

2.3

MICROPROCESSOR CONTROL PANEL : a.

The control panel shall direct the operation of the transfer switch. The panel’s sensing and logic shall be controlled by a built-in microprocessor for maximum reliability, minimum maintenance, and inherent serial communications capability. The control panel shall be connected to the transfer switch by an interconnecting wiring harness. The harness shall include a keyed disconnect plug to enable the control panel to be disconnected from the transfer switch for routine maintenance.

b.

The control panel shall be completely enclosed with a protective cover and be mounted separately from the transfer switch unit for safety and ease of maintenance. Sensing and control logic shall be provided on printed circuit boards. Interfacing relays shall industrial grade plug-in type with dust covers.

SEQUENCE OF OPERATION : a.

The specified voltage decrease in one or more phases of the normal power source shall initiate the transfer sequence. The ATS shall start the engine-generator system after a specified time delay to permit override of momentary dips in the normal power source.

b.

The ATS shall transfer the load from normal to emergency source when the frequency and voltage of the engine-generator system have attained the specified percent of rated value.

c.

A voltage decrease, at any ATS, in one or more phases of the normal power source to less than the specified value of normal shall start the engine-generator system after a specified time delay.

d.

ATS for emergency system loads shall transfer their loads from normal to emergency source when frequency and voltage of the engine-generator system have attained the specified percent of rated value. Only those switches with deficient normal source voltage shall transfer.

e.

ATS units shall retransfer the load from emergency to normal source upon restoration of normal supply in all phases to the specified percent or more of normal voltage, and after a specified time delay. Should the emergency source fail during

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this time, the transfer to the After restoring shall continue shutdown. f.

2.4

automatic transfer switches shall immediately normal source whenever it becomes available. to normal source, the engine-generator system to run unloaded for a specified interval before

Transfer to emergency power source shall be accomplished by remote manual test switches on a selective basis by exercise mode.

BYPASS ISOLATION SWITCH : a.

Provide each ATS with two-way bypass isolation manual-type switch. The bypass-isolation switch shall permit load by-pass to either normal or emergency power source and complete isolation of the automatic transfer switch, independent of transfer switch position. Bypass and isolation shall be possible under all conditions including when the automatic transfer switch is removed from service.

b.

The bypass isolation switch shall have provisions for operation by one person. Provide a lock, which must energize to unlock the bypass switch, to prevent bypassing to a dead source. Provide means to prevent simultaneous connection between normal and emergency sources.

c.

The bypass isolation switch shall allow :

d.

1.

Bypass to normal (or emergency) operation.

2.

Isolation of all live power conductors to the ATS without interruption of the load.

3.

Testing of the ATS and engine-generator system with isolated contacts closed and the load bypassed without interruption of power to the load.

The electrical capabilities and ratings of the bypass isolation switch shall be compatible with those of the associated ATS, including any required additional withstand tests.

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2.5

REMOTE ANNUNCIATOR PANEL : a.

b.

2.6

3.1

3.2

1.

Sources available, as defined by actual pickup and dropout settings of transfer-switch controls.

2.

Switch position.

3.

Switch in test mode.

4.

Failure of communication link.

The annunciator panel shall be LED-lamp type with audible signal and silencing switch. Indicating lamps are grouped for each ATS monitored.

ACCEPTABLE LVSG FABRICATORS : a. b. c.

Part 3 -

Remote annunciator panel shall annunciate conditions for indicated automatic transfer switches. Annunciation shall include the following :

Automatic Switching Company (ASCO) General Electric – Zenith Controls Russelectric

EXECUTION :

INSPECTION : a.

Examine surfaces to receive the ATS for compliance with installation tolerances and other conditions affecting performance of the system. Do not proceed with installation until unsatisfactory conditions have been corrected.

b.

Beginning of the installation shall mean that the Contractor accepts the jobsite conditions.

GENERAL : a.

Install ATS assemblies and accessories as indicated in the electrical plans and drawings, according to UL 1008, NEMA ICS

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10, NFPA 110, IEEE 446, and in compliance to the requirements of the NEC / PEC.

3.3

3.4

3.5

b.

Comply with mounting and anchoring requirements as specified in Section 26-05-48 “Vibration Isolation and Seismic Controls for Electrical Works”.

c.

Anchor ATS / LVSG assembly to 100-mm (4-inch), channel-iron floor sill embedded in floor or concrete base and attach by bolting.

IDENTIFICATION : a.

Identify field-installed conductors, interconnecting wiring, and components. Provide warning signs as specified in Section 2605-00 "General Electric Works."

b.

Frame and mount the ATS / LVSG power sources and feeder diagrams, and instructions under clear acrylic plastic on the front of the ATS / LVSG

CONNECTIONS : a.

Ground equipment according to Section 26-05-26 : “Grounding and Bonding”.

b.

Connect wiring according to Section 26-05-19 : “Low-Voltage Wires and Cables”.

FIELD QUALITY CONTROL : a.

Prepare for acceptance tests as follows : 1.

b.

Test insulation resistance for each ATS, component, connecting supply, feeder, and control circuit. Comply with manufacturer’s specified minimum resistance.

2. Test continuity of each circuit. After installing the ATS / LVSG and after electrical circuitry has been energized, demonstrate product capability and compliance with requirements.

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3.6

1.

Perform each visual and mechanical inspection and electrical test indicated in NETA ATS for circuit breakers. Certify compliance with test parameters.

2.

Correct malfunctioning units on-site, where possible, and retest to demonstrate compliance; otherwise, replace with new units and retest.

c.

After energizing circuits, demonstrate interlocking sequence and simulate the operational function for each ATS at least three (3) times.

d.

After substantial completion, but not more than 60 days after final acceptance, perform an infrared or thermographic scan of the ATS. Remove ATS rear panels so that joints and connections are accessible to portable scanner.

CLEANING : a.

On completion of installation, inspect interior and exterior of the ATS. Remove paint splatters and other spots. Vacuum dirt and debris - do not use compressed air to assist in cleaning. Repair exposed surfaces to match original finish.

- END OF SECTION -

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SECTION 26 41 00

:

LIGHTNING PROTECTION SYSTEM

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

GENERAL:

DESCRIPTION: a.

This Section includes furnishing of all labor, material, supports and services to install a complete functional and unobtrusive early streamer emission-type lightning protection system as shown and indicated on the electrical plans and drawings.

b.

Related Sections include the following: 1. 2. 3.

1.2

1.3

Section 26-05-00 Section 26-05-26 Section 26-05-33

: : :

General Electrical Works. Grounding and Bonding. Raceways and Boxes.

QUALITY ASSURANCE: a.

Except as modified by the governing codes and by the Contract Documents, comply with the latest applicable provisions and latest recommendations of CNRS/EDF NFC 17-102.

b.

The lightning arrester system shall be tested by a third-party organization tests with regards to compliance to French Standard NFC 17-102 requirements, with such bodies such as LCIE, BSI, CNRS and Gimelec.

c.

Installation of systems shall be performed by fully-qualified technical personnel having had a minimum of ten (10) years experience installing these types of systems.

COORDINATION: a.

Ensure that installation including air terminals does not conflict with the operation of other rooftop systems. Where required by actual jobsite condition, provide alternate design approach on mast-mounted air terminals to accomplish this coordination.

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1.4

1.5

b.

Coordinate roof penetrations and waterproofing requirements with the Architectural drawings.

c.

The lightning protection system design and installation shall comply with the FAA / ATO requirements.

SUBMITTALS DURING CONSTRUCTION: a.

Manufacturer’s product data sheets and installation instruction for a complete early streamer emission-type lightning protection system.

b.

Plan and elevation shopdrawings showing lightning air terminal location, points of attachment, vibration restraints, mounting methods, and hardware types and sizes.

c.

Radius or cone of protection calculations, certified by a registered Professional Electrical Engineer.

d.

Field inspection report.

FIELD INSPECTION: a.

Part 2 -

2.1

PRODUCTS:

ACCEPTABLE MANUFACTURERS: a. b. c. d.

2.2

Upon completion of the installation, the manufacturer’s local representative shall field inspect the installation and submit a report verifying the completeness and performance of the installation.

Helita Pulsar. Skylance Sereli Lightning Protection International Franklin France Saint Elmo

AIR TERMINALS: a.

Air terminals shall be designed to intercept a lightning discharge and immediately pass it to a down-conductor. The air terminals

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shall be a self-controlled high-voltage unipolar device which functions by atmospheric electricity to initiate early streamer emission. b.

2.3

Part 3 -

3.1

The air terminals shall be non-radioactive and environmentally safe.

DOWN CONDUCTORS: a.

The lightning protection down-conductor shall carry the lightning strike to ground without the electrification of the protected structure. The down-conductor shall consist of copper conductors, insulated from the structure.

b.

The down-conductor shall have a minimum of 60sq.mm crosssectional area of electrical grade copper.

c.

The down-conductor shall not be subjected to bends of less than 600mm in radius.

EXECUTION:

GENERAL: a.

Air terminal shall be installed at least 3-meters above the highest point of the area to be protected, on a fiberglass mast with a minimum length of 2 meters, minimal thickness of 4mm, and an internal diameter of 60mm into which the base of the terminal is inserted.

b.

Approved connectors of proper electric and mechanical characteristics shall be used. Air terminal and down-conductors shall be rigidly and permanently attached to the building with fasteners of proper strength and design. Fasteners shall be spaced not to exceed 1000mm on-center.

c.

The lightning protection ground shall be interconnected to the building’s other grounding systems. Ground rods shall be provided as required by the electrical plans and drawings. All connections shall be made with exothermic welds.

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d.

Test the ground resistance to earth by standard methods and conform to the ground resistance requirements specified in Section 26-05-26 : Grounding and Bonding of Electrical Systems.

- END OF SECTION -

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SECTION 26 50 00

:

GENERAL LIGHTING SYSTEM

----------------------------------------------------------------------------------------------------------------

Part 1 -

1.1

GENERAL :

SUMMARY : a.

This Section covers the work necessary to furnish and install complete general lighting fixtures and accessories as indicated on the electrical plans and drawings.

b.

Special lighting fixtures under the scope of works of the Lighting Consultant, Interior Designer, Landscape Architect, and Swimming Pool Consultant shall be handled by these specialty consultants.

c.

Related Sections include the following : 1. 2. 3. 4.

1.2

Section 26-05-00 Section 26-05-19 Section 26-05-26 Section 26-05-33

: : : :

General Electrical Works. Low-Voltage Wires & Cables. Grounding and Bonding. Raceways and Boxes.

QUALITY ASSURANCE : a.

All general lighting fixture products shall comply with ANSI C82.1, ANSI C82.4 Standards as they apply in the particular, and shall be UL-listed.

b.

All general lighting fixture and component products shall be approved by the Philippine Bureau of Product Standards (BPS). The manufacturer / fabricator shall be specialized in the fabrication of general lighting fixture assemblies for minimum of ten (10) years, and shall be ISO-9001 : 2008 QMS Certified.

c.

All general lighting fixtures shall comply with the latest edition of the NFPA-70 (National Electrical Code) and Philippine Electrical Code.

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1.3

1.4

SUBMITTALS DURING CONSTRUCTION : a.

Product data for each type of general lighting fixture indicated, including fittings and accessories.

b.

Photometric data, energy-efficiency data and life of each type of lighting fixture and lamp.

c.

Shopdrawings showing details of general lighting fixtures indicating dimensions, weights, methods of field assembly, components and power / control wiring diagrams.

d.

Actual sample for verification of each type of general lighting fixtures indicated.

e.

Coordination drawings showing the composite reflected ceiling plans and other details, drawn to scale, based on input from the suppliers and installers.

f.

Product certificates.

g.

Field quality-control test reports.

h.

Special warranties.

COORDINATION : a.

1.5

Coordinate layout and installation of lighting fixtures and suspension system with other construction that penetrates ceilings or is supported by them, including HVAC equipment, fire-suppression system, and partition assemblies.

EXTRA MATERIALS : a.

Lamps – 10 pieces per every 100 pieces of each type and rating installed.

b.

Plastic diffusers and lenses - 10 pieces per every 100 pieces of each type and rating installed.

c.

Ballasts - 5 pieces per every 100 pieces of each type and rating installed.

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1.6

Part 2 -

2.1

DELIVERY, STORAGE AND HANDLING : a.

Deliver, store and handle materials in accordance with Section 26-05-00 : “General Electrical Works”.

b.

Deliver materials to site in original factory packaging, properly labeled.

c.

Disposal and recycling of fluorescent lamps and batteries as per local regulations.

PRODUCTS :

GENERAL LIGHTING FIXTURES AND COMPONENTS : a.

Recessed lighting fixtures shall comply with NEMA LE4.

b.

Incandescent fixtures shall comply with UL 1598.

c.

Fluorescent lighting fixtures shall comply with UL 1598.

d.

H.I.D. fixtures shall comply with UL 1572.

e.

Lighting fixture shall be steel, unless otherwise indicated. Fixture form and support shall prevent fixture warping or sagging. Metal parts shall be free of burrs and sharp corners and edges.

f.

Lighting fixtures shall be amooth operating, free of light leakage under operating conditions, and designed to permit re-lamping without use of tools. Lighting fixtures shall be designed to prevent doors, frames, lenses, diffusers, and other components from falling accidentally during relamping and when secured in operating position.

g.

Reflectors shall have minimum reflectance of 85%.

h.

Acrylic lighting diffusers shall be 100 percent virgin acrylic plastic, with high resistance to yellowing and other changes due to aging, exposure to heat, and ultraviolet radiation.

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2.2

LAMPS : a.

Incandescent lamps shall be clear, A19, 100 watt with 1000 hour lamp life, rough-service rated or as indicated. LED Omni A19 Replacement Lamp Option to A19 100 watts Incandescent Lamps – 9 watts, A19 General Purpose Bulb, 220~250 Volts, 50~60 Hertz, beam angle of >30 degrees, >0.90 pf, color rendering index >80, 3000K warm white, minimum 25,000 hour lamp life, 525 initial lumens, with integrated driver (no external ballasts) for easy installation, compatible with E27 lamp socket and dimmable.

b.

Fluorescent lamps shall be T8, 36 watt, medium bi-pin, rapid or instant start to suit application, 4100 K, 30000 hour lamp life, 2950 initial lumens or as indicated. LED T8 Replacement Lamp Option to T8 36 watts Fluorescent Lamps – 36 watts, 110~277 Volts, 50~60 Hertz, 29 mm. dia x 1220mm long, beam angle of >180 degrees, >0.90 pf, color rendering index >80, 6500K daylight, minimum 40,000 hour lamp life, 1900 initial lumens, with integrated driver (no external ballasts) for easy installation and compatible with standard G13 lamp holders. LED T8 Replacement Lamp Option to T8 18 watts Fluorescent Lamps – 10 watts, 110~277 Volts, 50~60 Hertz, 29 mm. dia x 610mm long, beam angle of >180 degrees, >0.90 pf, color rendering index >80, 6500K daylight, minimum 40,000 hour lamp life, 1000 initial lumens, with integrated driver (no external ballasts) for easy installation and compatible with standard G13 lamp holders. LED T5 Replacement Lamp Option to T5 32 watts Fluorescent Lamps for Covelighting – 16 watts, 180~260 Volts, 50~60 Hertz, 29 mm. dia x 1220mm long, beam angle of >120 degrees, >0.90 pf, color rendering index >80, 3000K warm white, minimum 20,000 hour lamp life, 1400 initial lumens, with integrated driver (no external ballasts) for easy installation and compatible with standard G13 lamp holders.

c.

Compact fluorescent lamps shall be 26 watt, 12,000 hour lamp life, 1800 initial lumens, 4100 K or as indicated.

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LED Omni A19 Replacement Lamp Option to 26 watts Compact Fluorescent Lamps – 9 watts, A19 General Purpose Bulb, 220~250 Volts, 50~60 Hertz, beam angle of >30 degrees, >0.90 pf, color rendering index >80, 6500K daylight , minimum 25,000 hour lamp life, 525 initial lumens, with integrated driver (no external ballasts) for easy installation, compatible with E27 lamp socket and dimmable. LED Snowcone A19 Replacement Lamp Option to 26 watts Compact Fluorescent Lamps – 10 watts, A19 General Purpose Bulb, 220~250 Volts, 50~60 Hertz, beam angle of >30 degrees, >0.90 pf, color rendering index >80, 6500K daylight, minimum 15,000 hour lamp life, 500 initial lumens, with integrated driver (no external ballasts) for easy installation, compatible with E27 lamp socket and non-dimmable.

2.3

d.

Metal halide lamps shall be clear, 100 Watt, mogul base, horizontal burn, 4100 K, 15000 hour lamp life, open or enclosed type to suit the lighting fixture or as indicated.

e.

Acceptable manufacturers are General Electric, Philips Lighting, Osram, Sylvania, or Trilux.

BALLASTS FOR LINEAR FLUORESCENT LAMPS: a.

b.

Electronic ballasts, comply with ANSI C82.11, instant-start type, unless otherwise indicated, and designed for type and quantity of lamps served. Ballasts shall be designed for full light output. 1. 2. 3.

Sound rating Total harmonic distortion Transient voltage protection

-

4. 5. 6.

Lamp current crest factor Ballast factor Power factor

-

A less than 10% IEEE C62.41, Category-A. 1.7 or less 0.85 or higher 0.95 or higher

Acceptable manufacturers are General Electric, Philips Lighting, Osram / Sylvania, Tridonic ATCO, Motorola or approved equal.

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2.4

BALLASTS FOR COMPACT FLUORESCENT LAMPS: a.

2.5

2.7

1. 2. 3.

Sound rating Total harmonic distortion Transient voltage protection

-

4. 5. 6.

Lamp current crest factor Ballast factor Power factor

-

A less than 20% IEEE C62.41, Category-A. 1.7 or less 0.85 or higher 0.95 or higher

BALLASTS FOR H.I.D. LAMPS : a.

2.6

Electronic programmed rapid-start type ballasts, comply with ANSI C82.11, designed for type and quantity of lamps served. Ballasts shall be designed for full light output.

Electromagnetic type ballasts, with solid-state igniter / starter, designed for type and quantity of lamps served. Ballasts shall be designed for full light output.

EXIT SIGNAGE LIGHTS : a.

Exit signage lights shall comply with UL 924 for sign colors, visibility, luminance, and lettering size, and shall comply with AHJ requirements. Exit signage lights shall have an integral automatic charger in a self-contained power pack. LED lamps are preferred.

b.

Battery shall be sealed-type, maintenance-free, nickel-cadmium, with ampere-hour capacity to provide four (4) hours emergency power to exit signage light.

c.

Battery charger shall be fully automatic, solid-state type with sealed transfer relay.

EMERGENCY LIGHTING FIXTURES : a.

Emergency lighting fixtures shall be internal-type, self-contained, modular, battery-inverter factory-mounted within the lighting fixture body. LED lamps are preferred.

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Part 3 -

3.1

3.2

b.

Battery shall be sealed-type, maintenance-free, nickel-cadmium, with ampere-hour capacity to provide four (4) hours emergency power to exit signage light.

c.

Battery charger shall be fully automatic, solid-state type with sealed transfer relay.

EXECUTION :

INSPECTION : a.

Examine ceiling and wall surfaces to receive lighting fixtures for compliance with installation tolerances and other conditions affecting performance. Do not proceed with installation until unsatisfactory conditions have been corrected.

b.

Beginning of the installation shall mean that the Contractor accepts the jobsite conditions.

GENERAL : a.

Install complete general lighting system as indicated in the electrical plans and drawings, in compliance to the requirements of the NEC / PEC.

b.

Lighting fixtures shall be set level, plumb, aligned and square with ceiling and walls. Install lamps in each fixture.

c.

Provide adequate support to lighting fixtures to suit the ceiling system, in accordance with Section 26-05-00 : “General Electrical Works”.

d.

Connect the lighting fixtures to the lighting circuit. Connect wiring according to Section 26-05-19 : “Low-Voltage Wires and Cables”.

e.

Ground equipment according to Section 26-05-26 : “Grounding and Bonding”.

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3.3

3.4

FIELD QUALITY CONTROL : a.

Inspect each installed fixture for damage. Replace damaged fixtures and components.

b.

Verify normal operation of each fixture after installation.

c.

Conduct test for emergency lighting fixtures. Interrupt power supply to demonstrate proper operation.

d.

Prepare a written report of tests, inspections, observations, and verifications indicating and interpreting results. If adjustments are made to lighting system, retest to demonstrate compliance with standards.

CLEANING : a.

After completing installation of lighting fixtures, inspect exposed finishes and repair damaged finishes.

- END OF SECTION -

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