Https://fr.scribd.com/doc/294639869/method-statement-for-cable-pulling-and-connections

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Job Code

17546Z-UN2-SP-E-81EZ014

Owner Doc. No.

Hassi Messaoud Upside North Project

S-00-1382-001

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SONATRACH HASSI MESSAOUD UPSIDE NORTH PROJECT REALISATION D’UN CENTRE DE SEPARATION ET DE COMPRESSION (CSC) A L’UN2-1 (UPSIDE NORD) HASSI-MESSAOUD ALGERIE

CONTRACT No. ENC 17 546Z

GENERAL SPECIFICATION FOR POWER & CONTROL CABLES

Prep’d

Chk’d

App’d

For Approval

T.Okazaki

H. Hashikawa

A.Saito

9 Feb’18

For Approval

G.Matsumoto

H. Hashikawa

A.Saito

23 Feb’18

For Construction

G.Matsumoto

H. Hashikawa

A.Saito

Rev.

Date

A

15 Nov ‘17

B 1

Issue Purpose

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Item Paragraph 6.3

Revision Description [Changed] The Cable outer sheath color is changed as below - All MV & HV cable color is RED. - All LV cable color is BLACK

Paragraph 6.4

[Added] The Cable for 5.5kV VSD system is added

Paragraph 6.1, 6.2, 6.4, 6.5

[Added] The description for double tape armour is added

Rev.A Change ---------------------Paragraph 1.3

22

Rev.

---------------------------------------------------------------------------------------[Added] Abbreviation of GSTA; Galvanized steel tape armouring is added

Paragraph 1.6

[Added] Telecom, Fiber Optic, and Instrument cables for those electrical uses are in accordance with S-00-1378-002 INSTRUMENT CABLE SPECIFICATION.

Paragraph 1.4~1.6

[Added] Paragraph of 1.4 Definitions, 1.5 Terminology, and 1.6 Exception to This Specification is added.

Paragraph 4.2

[Added] Determination of soil thermal resistivity is added

Paragraph 6.1

[Added] Description of strippable type is added, since Contractor required strippable type Insulation screen considering the construction aspect

Paragraph 6.4

[Added] Scope of Vendor’s recommended cable is added.

Paragraph 6.4 and 6.5

[Added]

1 Remarks

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

Description of non-hygroscopic polypropylene string fillers is added for conductive lay of multi core cables. Rev.B Change ---------------------Paragraph 6.3

Rev.1 Change ----------------------

---------------------------------------------------------------------------------------[Added] Note for insulation class of Earthing cable is added. [Added] Sheath color for fire resistant cable is added.

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

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CONTENTS 1

GENERAL ................................................................................................................................................. 6 PURPOSE .......................................................................................................................................... 6 LANGUAGE....................................................................................................................................... 6 ABBREVIATIONS ............................................................................................................................ 6 DefinitionS .......................................................................................................................................... 7 TerminologyS...................................................................................................................................... 7 ExceptionS to this specification......................................................................................................... 7

1.1 1.2 1.3 1.4 1.5 1.6 2

REFENRENCE CODES AND STANDARDS ........................................................................................ 8 PROJECT DOCUMENTS ................................................................................................................ 8 CODES AND STANDARDS............................................................................................................. 8

2.1 2.2 3

SCOPE OF SUPPLY............................................................................................................................... 10

4

DESIGN AND SERVICE CONDITION ............................................................................................... 10 4.1 DESIGN LIFE .................................................................................................................................. 10 4.2 ENVIROMENTAL CONDITIONS.................................................................................................. 10 4.2.1 ELEVATION ............................................................................................................... 11 4.2.2 TEMPERATURE ........................................................................................................ 11 4.2.3 SOLAR RADIATION ................................................................................................... 11 4.2.4 RELATIVE HUMIDITY ................................................................................................ 11 4.2.5 RAINFALL .................................................................................................................. 12 4.2.6 SANDSTORM ............................................................................................................ 12

5

TECHNICAL CHARATERISTICS ...................................................................................................... 12 5.1 PROTECTIVE CHARACTERISTICS.......................................................................................... 12 5.1.1 Against fire conditions................................................................................................. 12 5.1.2 Other hazards............................................................................................................. 12 5.2 RATED VOLTAGE ......................................................................................................................... 12

6

CONSTRUCTION REQUIREMENTS................................................................................................. 14 6.1 30 kV, 15kv AND 5.5 kV CABLES............................................................................................... 14 6.2 LV CABLES .................................................................................................................................... 15 6.3 COLOUR CODING AND IDENTIFICATION ............................................................................ 16 6.4 MEDIUM VOLTAGE, XLPE INSULATED, PVC INNER SHEATH, GSWA OR gsta, PVC OUTER SHEATHED POWER CABLES ................................................................................................. 16 6.5 LOW VOLTAGE, XLPE INSULATED, PVC INNER SHEATH, GSWA OR gsta, PVC OUTER......................................................................................................................................................... 17 6.6 INSULATED EARTHING CONDUCTORS ................................................................................ 18 6.7 INSTRUMENT CLEAN EARTHING CABLES ....................................................................... 18

7

OTHER REQUIREMENTS ................................................................................................................... 18 7.1 7.2

CABLE DRUMS ............................................................................................................................. 18 TECHNICAL DATE TO BE SUBMITTED.................................................................................. 19

8

ALGERIAN INSPECTION AGENCIES .............................................................................................. 20

9

INSPECTION AND TESTING .............................................................................................................. 20 9.1

FACTORY ACCEPTANCE TESTS .............................................................................................. 20

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PACKING AND TRANSPORTATION ......................................................................................... 22

11

QUALITY ASSURANCE ................................................................................................................. 22

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GENERAL PURPOSE

1.1

The purpose of this Specification, together with the referenced Standards, Specifications and Codes, is to define the design, engineering, manufacture, assembly, inspection, testing, certification and preparation for shipment of MV & LV Cables Technical Specification for the Hassi Messaoud Upside North Project in Algeria. This specification outlines only general performance and minimum requirements; it is not intended to relieve Supplier of responsibility for the design of equipment in accordance with the latest applicable codes and standards. 1.2

LANGUAGE The Project language is English for all technical documents. Final Documentation as well as labels shall be in French and English.

1.3

ABBREVIATIONS The following abbreviations are used throughout this document. AC ARH ºC CI DC EPR FEED GSWA GSTA Hz HV IEC kW kV LV MV OD PVC RP V XLPE

Abbreviations Alternating Current. Agence de Régulation des Hydrocarbures Degrees Centigrade. Circuit Integrity Direct Current. Ethylene Propylene Rubber. Front End Engineering Design Galvanized steel wires armouring Galvanized steel tape armouring Hertz (frequency.) High Voltage. International Electrotechnical Commission. Kilowatt. Kilovolts. Low Voltage. Medium Voltage. Overall Diameter. Poly Vinyl Chloride. Reduced Flame Propagation Voltage. Cross Linked Poly Ethylene.

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DEFINITIONS

For the purposes of the specification, the following definitions shall apply: CONTRACTOR: is the party that carries out all the design, engineering, procurement, construction, commissioning or management of a project of a facility. CONTRACTING AUTHORITY (CA): SONATRACH SUPPLIER (MANUFACTURER/VENDOR): is the party that manufacturers or supplies equipment and services to perform the duties specified by the CONTRACTING AUTHORITY or CONTRACTOR. INDEPENDENT VERIFICATION BODY: Inspection Body or Authority appointed by the CA DPEM: Direction des Patrimoines Energétiques et Miniers. (Ministère de l’Energie). ARH: Agence Nationale de contrôle et régulation des activités dans le domaine des hydrocarbures. ONML: Office Nationale de Métrologie légale. CTC: Contrôl Technique de la Construction. 1.5

TERMINOLOGYS

The word “shall” is to be understood as a mandatory requirement. The word “should” is to be understood as strongly recommended. The word “may” is to be understood as an action to be undertaken at the Supplier/Vendor´s discretion. 1.6

EXCEPTIONS TO THIS SPECIFICATION

VENDOR shall comply with this specification, data sheets and any other document included in the request for quotation. Any unavoidable deviation is to be clearly stated by the VENDOR in his bid. Failure to do so will be interpreted as confirmation that the equipment/system complies with this Specification, and any subsequent extra cost that may arise as a result of an unstated deviation shall be borne by the VENDOR. No deviation or exception to this Specification or any other document included in the request for quotation will be accepted without written conformance of the Customer. Telecom, Fiber Optic, and Instrument cables for those electrical uses are in accordance with S-001378-002 INSTRUMENT CABLE SPECIFICATION.

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REFENRENCE CODES AND STANDARDS In case of conflict between documents the ENGINEER shall take precedence in the following order: 1.

Algerian legal requirements (Algerian laws, edicts, regional or local regulations, etc.).

2.

Sonatrach standards.

3.

International Codes and Standards.

In the event of any conflict arising between the referenced standards the more stringent shall be applied. It shall be the CONTRACTOR’s responsibility to satisfy all technical & certification requirements for and on behalf of the CONTRACTING AUTHORITY. PROJECT DOCUMENTS

2.1

The following project specifications and documents form an integral part of this specification: S-00-1380-001

BASIS OF DESIGN FOR ELECTRICAL (ELECTRICAL DESIGN CRITERIA)

C-00-1382-105

ELECTRCICAL CABLE SIZING CALCULATION

CODES AND STANDARDS

2.2

The equipment and installations shall comply with the latest issues and most recent revision or amendment of the statutory requirements, IEC and other International Standards and Recommendations, current at the time. Any deviation from the codes and regulations shall only be permitted after obtaining written approval of the CONTRACTING AUTHORITY. The List of Referenced Standards and Regulations Register does not list all the specific sections and dates of the reference Codes and Standards. Electrical equipment at offsite facilities shall be designed and constructed in accordance with following IEC requirements:

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Rev.

Document Number

Description

IEC 60028

International standard of resistance for copper

IEC 60038

IEC standard voltages

IEC 60060

High Voltage test technique

IEC 60071

Insulation co-ordination

IEC 60183

Guide to the Selection of High Voltage Cables Polyvinyl chloride insulated cables of rated voltages up to

IEC 60227

and including 450/750 V

IEC 60228

Conductors of insulated cables

IEC 60229

Test of electrical cables under fire conditions

IEC 60230

Test of electrical cables under fire conditions

IEC 60287

Test of electrical cables under fire conditions

IEC 60331

Basic and safety principles for man-machine, interface, marking and identification – Identification of equipment terminals, conductor terminations and conductors

IEC 60332-Part 1

Test of electrical cables under fire conditions

IEC 60332-Part 3-24

Test of electrical cables under fire conditions

IEC 60446

IEC 60502

1

Basic and safety principles for man-machine, interface, marking and identification – Identification of equipment terminals, conductor terminations and conductors Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV)

IEC 60754

Test on Gases Evolved During Combustion of Materials from Cables

IEC 60811

Electric and optical fibre cables - Test methods for nonmetallic materials

IEC 60853

Calculation of cyclic and emergency current rating of cables

IEC 60885

Electrical test methods for electric cables

IEC 60949 IEC 60986 ISO 9001

Calculation of thermally permissible short-circuit currents, taking into account non-adiabatic-heating effects Short-circuit temperature limits of electric cables with rated voltages from 6 kV (Um = 7,2 kV) up to 30 kV (Um = 36 kV) Quality Management System Requirements

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SCOPE OF SUPPLY The scope of work shall include but is not limited to: 

The detail design, manufacture and supply of Power, Control and Earthing cables.



The detail design, manufacture and supply of all necessary ancillary equipment, special tools and spare parts for commissioning / start-up whether specified or not, to provide a complete and working cable system in all cases.



The preparation and supply of all documents and drawings, so that others may easily incorporate the Power & Control cables into the overall design of the project.



The factory testing of all cables. This includes the provision of appropriate test certification and report to be included in the Data Book.



4

Preparation for transport.

DESIGN AND SERVICE CONDITION 4.1

DESIGN LIFE All equipment shall be designed for a life period of 30 Years. ENVIROMENTAL CONDITIONS

4.2

Cables shall be suitable for continuous operation in desert locations under high ambient temperatures and humidity. The atmosphere is to be considered salty and dusty. They shall h a v e a design life of at least thirty years. All armoured cables shall be suitable for the following type of installation: 

Direct buried underground.



Installed within underground ducts.



Above ground and fastened securely to cable ladder rack or tray and in open air (exposed to direct sunlight). Generally sunshades will be provided to reduce the effects of solar gain. However, cables shall be suitable for direct exposure to sunlight.



In concrete trenches (back-filled with sand).



In conduit.



In duct bank.



Thermal Resistivity values for direct buried cable installations:



Direct in soil



In cement bonded soil 1.5ºC m/W

2.5ºCm/W

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Determination of soil thermal resistivity 2.5ºCm/W is provided from the experience in past Algeria project and from Feed calculation basis.All cable’s derating factor for Soil thermal resistivity and cable grouping are defined based on the worst case scenario. Definition of Soil thermal resistivity in IEC 60287-3-1 is as below;

ELEVATION

4.2.1

Altitude ranging from 130 to 170 m above sea level TEMPERATURE

4.2.2

Materials conforming to this document shall be suitable for operation at the conditions stated above and as follows: Units Air design temperature Maximum soil temperature (1 m below the surface)

CPF

Maximum

°C

55

Minimum

°C

-5

Summer

°C

30

Winter

°C

10

For cables installed in galleries, cable trays in substation cable room or cable trays with cover in free air, shall be considered a temperature increment of 10 ºC respect to same cables installed in free air. SOLAR RADIATION

4.2.3

This point is applicable only for effect of solar radiation on surface temperature. A solar radiation of 1 kW/m2 shall be used. The effects of solar radiation and subsequent high surface temperatures shall be given full recognition in the design of the facilities and adequate equipment shading provided. All non-metallic components, including cables, utilized in the facility and exposed to direct sunlight shall contain a suitable ultraviolet barrier. RELATIVE HUMIDITY

4.2.4 

Maximum humidity; 50% at 40ºC.

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Minimum humidity; 20% at 40ºC.



RAINFALL

4.2.5

Annual precipitation is negligible however short daily storms are possible: 

Annual rainfall; 120 mm.



Maximum peak daily rainfall (storm); 45 mm. SANDSTORM

4.2.6

Often accompany violent winds (Especially between March and May).

5

TECHNICAL CHARATERISTICS 5.1

PROTECTIVE CHARACTERISTICS Against fire conditions

5.1.1

There shall be two different type of cables depending on the service, flame retardant cables and fire resistant cables. Fire resistant cables shall be able to operate normally in the presence of prolonged fire for a specified time under defined conditions. They shall be fire resistant according to IEC 60331. For vital and essential services routed inside the buildings, cables shall be fire resistant. For the Plant areas, this requirement mainly includes outdoor escape lights, building air replenishment systems, fire points lifts, floodlights for specific locations and other similar locations. All the other power and control cables shall be flame retardant. Flame retardant cables shall avoid the risk of fire spread. Flame retardant properties shall be within the limits of tests to standard IEC 60332, part 1 and part 3-24 (refer to section 3.4). Type test certificates shall be provided to confirm compliance with the above. These certificates shall be provided at the time of quotation. Other hazards

5.1.2

Buried cables shall have an outer sheath that is suitable for use in areas where it may be subject to attack by hydrocarbons and water. 5.2

RATED VOLTAGE The rated voltage of the cable for a given application shall be suitable for the operating conditions in the system in which the cable is used. To facilitate the selection of the

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cable, systems are divided into three categories: Category A: This category comprises those systems in which any phase conductor that come in contact with earth or an earth conductor is disconnected from the system within 1 minute. Category B: This category comprises those systems which, under fault conditions, are operated for a short time with one phase earthed. This period, according to IEC 60183, should not exceed 1 hour. For cables covered by this standard, a longer period, not exceeding 8 hours on any occasion, can be tolerated. The total duration of earth faults in any year should not exceed 125 hours. Category C: This category comprises all systems which do not fall into categories A or B. The cables are designated by the relation Uo/U and Um, where: 

Uo: Is the rated power frequency voltage between conductor and earth or metallic screen for which the cable is designed.



U: Is the rated power frequency voltage between conductors for which the cable is designed.



Um: Is the maximum value of the "highest system voltage'' for which the equipment may be used, recommended by IEC 60038.

It is the highest voltage that can be sustained under normal operation conditions at any time and at any point in the system. It excludes temporary voltage variations due to fault conditions and the sudden disconnection or large loads. The values of Uo recommended for power cables, with extruded insulation in threephase systems, are listed in the last table. These values for cables and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV) are the recommended by IEC 60502-2, “Table 1 Recommended rated voltages Uo”.

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Hassi Messaoud Upside North Project Operational voltage (U) kV Up to 0,690 3

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Three-phase system categories

1,2 3,6

7,2

15

20

6

12

17,5

24

25

30

30

36

45

52

Cable rated voltage (Uo/U) kV 0,6/1

A-B C

1,8/3 3,6/6

A-B C

10

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Rev.

6/10

A-B C

8,7/15

A-B C

12/20

A-B C

15/25

A-B C

18/30

A-B A-B

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C

CONSTRUCTION REQUIREMENTS 6.1

30 KV, 15KV AND 5.5 KV CABLES The cables shall be either single core or three core construction with compacted circular stranded or shaped copper conductors, 30 kV shall be single core. The conductor material shall be stranded annealed high conductivity copper of at least 99.5 per cent purity. The copper wire before shaping shall be smooth, uniform in quality, free from scale, inequalities, spills, splits and other defects. Conductors shall comply with the requirements of IEC 60228. The term “annealed” signifies that before stranding, the conductor is capable of at least 15 percent elongation without failure, the test piece being not less than 150mm and not more than 300mm long. The conductor insulation shall be triple extruded, cross polyethylene (XLPE) which shall be subjected to a dry curing process, i.e. XLPE insulation with an inner and outer semi-conducting layer that form a conductor and insulation screen. The inner semi-conducting layer, solid insulation and outer semi-conducting layer shall

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be extruded and cured in a single process. The semi-conducting layers shall be uniform in all respects without voids and completely bonded or strippable to the surface of the insulation material The average thickness of the insulation shall not be less than the minimum value stated in IEC 60502. The insulation screen shall consist of an outer layer of semi-conducting material having a minimum thickness of 1.0mm together with a layer of copper tape capable of carrying the earth fault current as per the data sheet and based on updated Power System Studies. Single core cables shall be aluminum wire or aluminum double tape armoured and three core cables shall be galvanized steel wire or galvanized steel double tape armoured. The cable jacket shall be extruded PVC having an oxygen index not less than 30. Cables shall be suitable for high temperatures, solar radiation and hydrocarbon chemicals found in the processing facilities and flame retardant Category C. (IEC 60332, part 1 and part 324) Cables shall be capable of bending to a minimum radius without affecting their electrical characteristics in any way, or causing damage to the armouring. 6.2

LV CABLES The cables shall be either single core or multi-core construction with stranded copper conductors. The LV cables for power, lighting and control shall be cross polyethylene (XLPE) insulated galvanized steel wire (single core cables aluminum wire) armoured and PVC sheathed. The type of compound for the inner and outer sheaths shall be ST-2 of IEC 60502. The wires shall be made of annealed high conductivity copper and shall be stranded and compacted according to IEC 60228. The grade and quality of the copper used for the conductor shall have purity of the order of 99.5%. All cables shall be provided with an extruded sheath having oxygen index not less than 30. Cables shall be suitable for high temperatures, solar radiation and hydrocarbon chemicals found in the processing facilities. Depending on the service cables shall be fire resistant according to IEC 60331 or flame retardant Category C according to IEC 60332, part 1 and part 3-24. Single core cables shall be aluminum wire or aluminum double tape armoured and the three core cables shall be galvanized wire armoured.

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COLOUR CODING AND IDENTIFICATION All cables shall be manufactured with the outside PVC jacket colour coded to indicate operating voltage according to the following schedule: System Voltage

Standard Voltage Grade

Sheath Colours

30 kV

18/30 kV

Red

5.5 kV VSD

8.7/15 kV

Red

5.5 kV

3.6/6 kV

Red

400 V and below

0.6/1 kV

- Black (**) - Red for fire resistant cable inside BLDG

Earthing Cables

450/750 kV (*)

Instrument Clean Earthing

450/750 V

Green/Yellow Green

Phase conductors shall be grey, black and brown coloured. Phase wires of multi-core cable shall be colour coded as follows: ○ Two cores

Brown – Light Blue

○ Three cores Brown – Grey - Black ○ Four cores

Brow – Grey – Black – Light Blue

○ Five and more Numbers at 50mm intervals Single core cable insulation shall be natural colour. Neutral conductor shall be light blue coloured and designed equal to phase conductor. The oversheath of the cable shall be embossed with the maker’s name, conductor size, type, voltage level and RP (to indicate reduced flame propagation, i.e. flame retardant) or CI (to indicate circuit integrity, i.e. fire resistant). Length of the cable shall be marked sequentially at every meter. (*) Insulation class of 0.6/1 kV shall be guaranteed by the Vendor. (**) Cable identification tag marker to be provided for outdoor fire resistant cable. 6.4

MEDIUM VOLTAGE, XLPE INSULATED, PVC INNER SHEATH, GSWA OR GSTA, PVC OUTER SHEATHED POWER CABLES Voltage grade

-

18/30 kV for 30 kV system 8.7/15 kV for 5.5kV VSD system (*) 3,6/6 kV for 5.5 kV system

Conductors

-

Stranded copper conductor class 2 (IEC 60228).

Conductor Screen

-

Extruded semi-conductive compound

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Insulation

-

Cross sections polyethylene (XLPE)

Insulation Screen

-

Extruded semi-conducting compound, bedding of semiconductive tape and earth screen of copper tape. Copper tape screen shall be designed to carry the earth fault current of the system (indicated in the data sheet and based on the updated Power System Studies) for a period of one second without exceeding the permissible temperature rise.

Conductive Lay

-

Cores laid up with extruded PVC fillers or non-hygroscopic polypropylene string fillers to form a circular cable and bound / with a suitable binder tape.

Bedding

-

Extruded polyvinyl chloride

Armouring

-

Galvanized steel wires or galvanized steel double tape. Single core cables shall have aluminum wire or aluminum double tape armouring.

Outer Sheath

-

The outer sheath of cable shall be an extruded layer of polyvinyl chloride, intrinsically flame retardant. Refer to section 3.4 (IEC 60332, part 1and part 3-24).The type of compound for the inner and outer sheaths shall be ST-2, according to IEC 60502 (Section 4.3).

Voltage rating, type, size and VENDOR’S name shall be embossed on outer sheath, refer to applicable standards. (*) As8.7/15 kV insulation cable to be used for 5.5kV VSD system. Scope of 8.7/15 kV insulation cable is main power of downstream of VSD transformer secondary. 6.5

LOW VOLTAGE, XLPE INSULATED, PVC INNER SHEATH, GSWA OR GSTA, PVC OUTER Voltage grade

-

0.6/1 kV

Conductors

-

Stranded annealed high conductivity copper class 2 (IEC 60228).

Insulation Conductor Lay

-

Cross sections polyethylene (XLPE)

-

Cores laid up with extruded PVC filler or non-hygroscopic polypropylene string fillers for up to 5 cores. For 6 cores or more wrapping of polyester tape.

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Bedding

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Extruded Polyvinyl Chloride

Armouring

-

Galvanized steel wire or galvanized steel double tape.

1

Single core cables shall have aluminum wire or aluminum double tape armouring. Outer Sheath

-

The outer sheath of cable shall be an extruded layer of polyvinyl chloride: Intrinsically flame retardant according to section 3.4 IEC 60332, part 1 and part 3-24 or fire resistant according to IEC 60331. The type of compound for the inner and outer sheaths shall be ST-2, according to IEC 60502 Part 1 (Section 4.3).

Voltage rating, type, size and VENDOR’S name shall be embossed on outer sheath, refer to applicable standards. 6.6

INSULATED EARTHING CONDUCTORS The insulated earthing conductors used for connection/bonding of the metallic enclosures of the equipment and of the earthing rings to the earthing system shall be single core PVC sheathed, copper conductor. The conductors shall be circular and composed of stranded annealed copper wires. The sheath shall be of extruded green/yellow PVC with an insulation level of 600/1000 V, shall have an oxygen index of not less than 30 and shall be flame retardant to IEC 60332.

6.7

7

INSTRUMENT CLEAN EARTHING CABLES Voltage grades

-

450/750V (IEC)

Conductor

-

Stranded annealed copper

Insulation

-

Extruded polyvinyl chloride (colored Green).

OTHER REQUIREMENTS 7.1

CABLE DRUMS Cable drums lengths shall be defined in such way that cable could be installed without using cable splices. Cables shall be drummed in maximum continuous lengths, or in the custom lengths required on the data sheets and on non-returnable drums. Cable drums shall be of sufficient strength to protect the cable during shipping and handling.

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Cable ends shall be sealed and fixed to the drum, so that both ends are accessible. To protect the cable during shipment, battens shall be fitted around the entire periphery of the drum. Drums shall be suitable for long term outdoor storage at site.

Drum identification labels shall be attached to the outside and inside of the drum flanges. Labels shall be made from metal, laminated plastic or similar durable material, securely fixed, one per side at the top and bottom of each drum. Labels shall include the following information:

7.2



Manufacturer’s name.



Purchase order number and item number.



Drum identification number.



Number and size of conductors...



Cable construction (e.g. XLPE/GSWA/PVC).



Length of the cable (meters)



Cable voltage rating.



Total weight of cable and drum (kg)



Year of manufacture.



Minimum bending radius for installation.



Maximum pulling tension.



Voltage rating

TECHNICAL DATE TO BE SUBMITTED The SUPPLIER shall provide the following data with his quotation: Standard and maximum drum lengths for all the types of cable offered. Cable dimensions (together with tolerances) as follows:  Diameter over inner sheath (mm). 

Diameter under armour (mm).



Diameter over armour (mm).



Diameter of armour wires (mm).



Overall diameter (mm).

Cable weight in (kg / km). Cable electrical data as follows: 

Conductor D.C. resistance (per km at 20°C).



Conductor A.C. resistance (per km at operating temperature and system operating frequency).

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Conductor inductive reactance (per km at system operating frequency).



Conductor impedance (per km at operating temperature and system operating

1

frequency). 

Conductor capacitance (per km).



Cable armour resistance (per km) minimum bending radius (x OD).



Maximum conductor continuous operating temperature (°C).



Oxygen index.



Cable short-circuit withstand capacity either in graphical form or by formula.



Descriptive literature (catalogues etc.).



Cross sectional view of the physical make up of each cable.



Confirmation that cables can be installed at the temperatures stated in section 5.



Maximum pulling force for each cable and any special pulling instructions.



Maximum unsupported run of cable (horizontal and vertical).

All the above information shall be included on the manufacturer data sheet for each cable type. Cable current carrying capacity shall be adequate when installed in the defined conditions e.g. run in air ducts and/or direct buried in soil. Manufacturer shall also provide recommended cable ampacity derating tables for proper cable sizing.

8

ALGERIAN INSPECTION AGENCIES The Manufacturer shall comply with Algerian inspection agencies requirement

9

INSPECTION AND TESTING 9.1

FACTORY ACCEPTANCE TESTS All testing shall be identified within the Inspection and Test Plan and as required by the relevant Algerian authority. The test for flame retardant and flame resistant shall be according to IEC 60332. Tests for Fire resistant shall be according to IEC 60331. So it is not sufficient to limit the tests to IEC 60502. Type Tests Type tests shall be performed by the Supplier in accordance with the IEC Standards. These tests shall be considered as qualification tests.

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The manufacturer shall certify the type tests completed, which will be the indicated as such in IEC 60502 part 2 (cable from 3,6 / 6 kV to 18/30 kV), besides, flame retardancy tests according to IEC 60332-1, fire retardant to IEC 60332-3-24 and fire resistant to IEC 60331. Routine Tests According to the ITP requires, only the routine tests IEC 60502 for the MV cable shall be performed by the Supplier in the presence the Company or their appointed agents. These tests shall be performed either on all finished cable lengths or on samples of completed cables. Sample Tests The tests to be made shall be specified from the lists given hereafter. General Checks Qualitative and quantitative control of technical documentation given with cables and its compliance with the particular specifications. Control of drums: quality of flanges, marking and labelling, cable designation, length, section, sizes and weight, protection of terminations, packaging and protection against shocks. Control of conformity with the technical documentation. Mechanical Checks 

Control of the nature and composition of conductors



Control of mechanical properties of insulating covering



Measurement of the thickness of the insulating covering



Inspection of bedding and assembly



Control of the mechanical properties of the external protective sheaths



Measurement of the thickness of the external sheaths



Check of the nature and constitution of the conductor or semiconductor screens



Verification of the nature, composition and thickness of the metallic armour



Complete cable external dimensions measurement



Test for flame retardant according to IEC 60332-3 (test C)



Test for fire resistant according to IEC 60331 (if applicable)

Electrical Checks 

Electric strength test



Insulation resistance test



Verification of cable length in cable drum

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Test Reports 

Reports

A draft test report shall be presented for approval including the following: 

Expected theoretical values



Permitted tolerances



Results of measurements carried out



Measurement of electrical resistance of conductors



Electric strength tests



Insulation resistance test

Cables samples shall be presented to the Buyer. 

Required Technical Information

The following information shall be supplied by the Supplier: 

Standard/maximum drum lengths and the relevant drum overall sizes



Cable make up



Continuous current rating



Cable dimensions including tolerance



Cable weight per meter



Minimum safe bending radius



Diameter of cables on outer sheath



Diameter of cables on over armour



Diameter of cables on under armour



Total cross section of armouring/ Equivalent copper cross section.

10 PACKING AND TRANSPORTATION All cable shall be supplied in metallic or wooden drums unless otherwise specified. Cable drums shall be suitable for marine transportation.

11 QUALITY ASSURANCE A Quality Management System in accordance with ISO 9001, “Quality Management Systems - Requirements” shall be adopted throughout the various phases of the project (engineering, fabrication, assembly and testing).

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