Method Statement For Fiber Optic
This document was uploaded by user and they confirmed that they have the permission to share it. If you are author or own the copyright of this book, please report to us by using this DMCA report form. Report DMCA
Overview
Download & View Method Statement For Fiber Optic as PDF for free.
More details
- Words: 5,014
- Pages: 16
Loading documents preview...
UNCONTROLLED COPY
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 2 of 16
INDEX INDEX .......................................................................................................................................................2 AMENDMENTS AND REVISIONS ..........................................................................................................3 1.
SCOPE AND PURPOSE ...............................................................................................................4
2.
DEFINITIONS AND ABBREVIATIONS INTRODUCTION ............................................................4 2.1
PROJECT DEFINITIONS .........................................................................................................4
2.2
ACRONYMS .............................................................................................................................4
3.
REFERENCE CODES AND STANDARDS ...................................................................................5 3.1
COMPANY DOCUMENTS........................................................................................................5
3.2
CONTRACTOR DOCUMENTS ................................................................................................5
4.
RESPONSIBILITY .........................................................................................................................5
5.
FIBER OPTIC CABLE FIELD ACCEPTANCE TEST PROCEDURE ...........................................6 5.1
GENERAL .................................................................................................................................6
5.2
PRE-INSTALLATION CABLE TEST PROCEDURES .............................................................6
5.3
PRE-INSTALLATION CABLE REEL TEST .............................................................................6
5.4
FIBER OPTIC CABLE SPLICING / TERMINATION PROCEDURE........................................7
5.5
SPLICE LOSS TEST ................................................................................................................8
5.6
END TO END FIBER OPTIC CABLE OTDR TEST .................................................................9
5.7
FDP TO FDP OTDR & LIGHT SOURCE-POWER METER TEST ........................................ 10
6.
SAFETY ...................................................................................................................................... 14
7.
CALIBRATION ............................................................................................................................ 14
8.
ATTACHMENT ........................................................................................................................... 14
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 3 of 16
AMENDMENTS AND REVISIONS Amendment and Revision
Date
Page
Description
CONTRACTOR Rep.
X1
15-09-2016
All
Issued for Inter Disciplinary Check (IDC)
PB
A
20-11-2016
All
Issued for Approval
PB
B
05-03-2017
All
Re-issued for Approval Company comments are incorporated in page # 11 section 5.7.3 and also comments are covered in page # 14 section 7
PB
00
31-05-2017
All
Issued for construction Company comments are incorporated (FD/T-3719/17)
PB
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 4 of 16
1.
SCOPE AND PURPOSE
This document describes the applicable procedures to be used at STAR Fabrication Yard in splicing and testing of the fiber optical cable supplied under LTA project for Wellhead Platforms as applicable. Splicing and testing procedure for all the fiber optical cables associated with the project will be implemented in compliance with the Saudi Aramco Engineering Standard. To ensure that the telecommunications, conduits and cable works including inspections and testing activities are carried out in accordance with the project specifications and manufacturer’s instruction as well as meet acceptable workmanship and installation standard. In case of any conflict between this procedure and other applicable standards, SAUDI ARAMCO standards will prevail
2.
DEFINITIONS AND ABBREVIATIONS INTRODUCTION
2.1
PROJECT DEFINITIONS
COMPANY
SAUDI ARABIAN OIL COMPANY (IK)
CONTRACTOR
Consortium of STAR and Snamprogetti
SUBCONTRACTOR
Company assigned by Consortium to perform Activity
CERTIFYING AUTHORITY
The authority entrusted by COMPANY for the certification “fit for purpose” of the WORK
PROJECT
Maintain Potential Facilities Offshore Long Term Agreement
SUPPLIER/VENDOR
Agency supplying the material as specified and required by the contractor
2.2
ACRONYMS
PM
PROJECT MANAGER
PQM
PROJECT QUALITY MANAGER
QCM
QUALITY CONTROL MANAGER
SAPMT
SAUDI ARAMCO PROJECT MANAGEMENT TEAM
SAPID
SAUDI ARAMCO PROJECT INSPECTION DEPARTMENT
OTDR
OPTICAL TIME DOMAIN REFLECTOMETER
FDP
FIBER DISTRIBUTION PANEL
FOC
FIBER OPTIC CABLE
nm
NANOMETER
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 5 of 16
3.
REFERENCE CODES AND STANDARDS
3.1
COMPANY DOCUMENTS
Document Number
Title
Scope of work : Applicable Project SOW Schedule “Q”
Quality requirements
SAES-T-018
Telecommunications - Symbols, Abbreviations and Definitions
SAES-T-624
Telecommunications – Outside Plant Fiber Optic
SAES-T-625
Inter and Intra Building Fiber Optic Communication Cables
SAES-T-632
Telecommunications Cable Splicing
SAES-T-634
Telecommunication – Cable Testing and Acceptance
SAES-T-795
SATIP / SAIC / SATR
Communications Facility Grounding Systems Telecommunications: Electrical Coordination - Protection at Power Plants and Radio Stations Saudi Aramco Inspection Requirements
DE-119890
Procedure for Instrumentation and Control Systems Installation
GI 02-100
General Instruction - Work permit system
GI 05-002
Loss Prevention Policy implementation
SAES-T-887
3.2
CONTRACTOR DOCUMENTS Document Number
Title
00-C-C-00-CO-P-QA-00-001
Project Quality Plan
00-C-C-00-CO-P-QA-00-009
Control and Monitoring of Measuring Devices
00-C-C-00-ST-P-QA-00-001
Material Management and Control Procedure
00-C-C-00-ST-P-QA-00-038
RFI issuance and Control procedure
4.
RESPONSIBILITY
Project Manager -- shall be responsible for the overall implementation of this procedure, coordination with vendor / sub-Contractor, supply the drawing and materials necessary to ensure efficient execution of works in accordance with the project specification Communication QC Inspector -- All Installation shall be supervised by the Project Engineer/ Site superintended The Inspection shall be performed as specified in SATIP’s and relevant SAIC’s and witnessed by Communication QC Inspector. All Inspection activities shall be coordinated with Client representative and ensure that this procedure and requirement are being followed. Communication QC Inspector shall raise an RFI to SAPID start of any activity as required in applicable SATIP’s and relevant SAIC’s.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 6 of 16
5.
FIBER OPTIC CABLE FIELD ACCEPTANCE TEST PROCEDURE
5.1
GENERAL
This document details the test plans and acceptance criteria for procedures to be carried out before and after installation of the cable to verify that: •
The Fiber Optic Cable exhibits no abnormal light blocking, scattering or reflective event (cracks, fiber separations or excessive micro-bending) that might have occurred during transporting or installation
•
Total Line Loss measurement meets project design specifications
•
All Cable splice and testing shall be performed after necessary notification is been issued to Telecom PID prior to 48 hrs. of scheduled inspection, which is hold point for SAPID in accordance with SAES-T-624
5.2
PRE-INSTALLATION CABLE TEST PROCEDURES
This test will be conducted prior to receipt of the cable from the lay-down yard. This includes visual inspection of the cable and test using an Optical Time Domain Reflectometer to check that the fiber optic cable exhibits no abnormal light blocking, scattering or reflective events that have been induced during transportation. 5.2.1 Visual Inspection The purpose of the Visual Inspection is to verify that the cable sustained no damage during shipment and to verify that the number of fibers and their color coding complies with the contractual specifications. An evaluation of the quality of cable spooling onto the delivery drums and their visual appearance shall be conducted. Cable Specifications shall be verified against the Manufacturers’ Cable Test Report supplied with each reel of cable. 5.2.2 Procedure All cables shall be inspected to verify fiber counts, fiber coding, spooling and visual appearance. Cable marking shall be checked against the Manufacturers’ Cable Test Report. 5.2.3 Acceptance Criteria Fiber count and coding shall be as specified on the Manufacturer supplied Cable Test Report. The cables shall be coiled onto the delivery drum in even layers, allowing final packaging to prevent the cables from uncoiling and the layers on the drum tangling during transport. Visual inspection shall confirm that there is no physical damage to the cable drum and cable. 5.3
PRE-INSTALLATION CABLE REEL TEST
This purpose of the OTDR test is to verify that the cable sustained no damage during shipment. This test will be conducted prior to transport of the cable to the work site. Before conducting this test, a visual inspection will be performed to ensure that there is no physical damage to the cable reel. 5.3.1 Test Equipment •
Optical Time Domain Reflectometer (OTDR)
•
Elastomeric Splice or Bare Fiber Adapter
5.3.2 Test Procedure •
All fibers on the cable reel are to be tested by means of an OTDR.
•
Remove a sufficient portion of the cable sheath and clean it for testing.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 7 of 16
•
Strip and cleave the fiber.
•
Connect pigtail to the OTDR.
•
Connect the bare fiber to the pigtail with an Elastomeric Splice or bare fiber adapter.
•
Run the OTDR test to check for abnormalities and to measure the cable length, total loss and average loss per kilometer.
•
OTDR data will be recorded on a CD for evaluation and printout using a PC with the OTDR manufacturer’s software.
•
Repeat the above steps for each fiber.
•
The cable will be kept ready for installation if there is no discrepancy during the reel test.
•
The cable will be re-sealed after the completion of the test
•
Saudi Aramco Approved and certified technician and splicer will do and conduct cable splicing and testing
•
FOC Drum Reel test shall be witnessed by Saudi Aramco Project Inspection Department.
5.3.3 Acceptable Criteria •
No peak discontinuities above 0.1 dB at 1550 nm and 1310 nm.
•
Post Installation Test (POT) shall be conducted and witnessed by Telecom PID prior to Splicing at JB 001.
5.4
FIBER OPTIC CABLE SPLICING / TERMINATION PROCEDURE
5.4.1 Splicing Recommendations •
Cleanliness is critical to consistently achieve good splices. When preparing the fiber for splicing, the following things should be kept in mind.
•
The equipment used for the actual splicing should be kept clean and dust free. Any minute particle or debris in the fiber alignment area could result in bad fiber alignment.
•
Outside splicing should be carried out in a clean environment as much as possible. The splicing area shall be large enough to have standing up room for contractor, SAPMT and PID to witness the splicing.
•
Metallic Member of Fiber Optic Cable shall be grounded and bonded
•
Under FO Cable sheath – The shields & Armors of all cables entering telecom Facilities must be bonded together using # 6 AWG (16mm2) in compliance with SAES-T-887 par 5.8.6B.
5.4.2 Equipment Equipment used in splicing must be in excellent working condition. The following equipment shall be used in splicing Fiber Optic Cable. •
Splicing Machine Fujikura FMS 40S / 50S / Sumitomo Microcore Type 39: Splicing machine using fusion method will be used. The splice machine shall have a visual monitor miniature CRT/ LCD viewing screen and shall provide a read-out estimate of the splice loss. The machine shall be powered by 117 VAC, 50/60 Hz and equipped with rechargeable batteries for portable operation.
Connectorization Kit: Connectorization kit using heating Technology is used. •
Stripper: Stripper must be identified as Fiber Optic Cable Stripper and not general mechanical tool. The stripper should be of the correct size and in good condition. The stripper should be cleaned frequently. Any debris on the stripper could damage the fiber possibly causing it to break during cleaving / splicing.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 8 of 16
•
Cleaver: The cleaver shall be of highest quality to assure uniform, clean, 90 degree fiber end. The Cleaver should have a sharp blade that is perpendicular to the fiber axis. The cleaver Blade should either be rotated or replaced as soon as to show sign of wear.
•
Equipment should have updated calibration conducted by Saudi Aramco approved calibration agency.
•
Calibration shall be performed at established periods as specified in the most stringent of COMPANY standards, other applicable standards, or manufacturer recommendations; if no standards apply, the calibration cycle shall not exceed six months.
5.4.3 Splicing •
Care must be taken to see that there is no dust, coating material or cable fill compound in the cable.
•
The cable to be cut to the required length and outside insulation removed.
•
Strip the cable using the stripper. It should be ensured that multiple passes with stripping tool is not done, which may cause damage to the cable.
•
After stripping, debris should be cleaned off the fiber using an alcohol wipe. This wipe should be replaced with fresh wiper after each use.
•
Cleave the cable to get perpendicular ends. The cleaver should be cleaned and there should be no stray pieces of fiber left in the cable.
•
After cleaving, the fiber end should not be wiped again. This could leave debris on the end face of the fiber, which can cause problem with splicing.
•
Put the sleeve before placing the cable in the splicing machine.
•
Place the ends of the cable in the splicing machine and splice it. Note down the Theoretical splice loss for each fiber.
•
If any metallic member is used as strength member, it must be Grounded to main Grounding Grid as per manufacture’s recommendations.
•
Secure the cable in an optical fiber splicer organizer
•
Bond and ground all metallic members of the cable. The measured ground resistance shall be 25 ohms or less.
•
To prevent fiber damage handle buffer tubes and fibers carefully,when bending and placing in the organizer.
•
While Working at Junction Box barricade shall be Installed using Tarpaulin an a table to accommodate OTDR to ensure safety of bare Fiber Optic Cable during splicing as practicable.
5.5
SPLICE LOSS TEST
This test is to verify that the fiber optic splice loss meets the requirements of SAES-T-624. The splice loss is calculated from the fiber core offset and core deformation of the spliced portion by the High Resolution Direct Core Monitoring (HDCM) of the proposed fusion splicing machine. 5.5.1 Test Equipment •
EXPO-FPD-400 or equivalent.
5.5.2 Test Procedure •
Prepare the fiber for splicing by the fusion splicing machine.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 9 of 16
•
Set up the splicing machine as per the operation manual.
•
Align the fibers in accordance with the operation manual.
•
Splice the fiber.
•
After the fusion splice is finished, record the splice indicated by the machine display in the Optical Fiber Cable Splicing Records form shown in Attachment-A. (Note: If after 3 splice attempts, a loss of 0.1dB or less is not achieved, the fourth loss is recorded. The splice loss will later be checked by OTDR measurement as part of cable splice testing.)
5.5.3 Acceptable Criteria •
Average splice loss over a cable section shall not exceed 0.05dB per splice and any individual splice loss shall not exceed 0.1 dB.
•
0.1dB average link splice loss with no single splice loss above 0.2dB for mechanical splices.
•
Connectors shall have insertion losses of 0.5dB or less.
5.6
END TO END FIBER OPTIC CABLE OTDR TEST
This test is to verify that the installed fiber optic cable splices meet the attenuation specifications described below. This test will also verify that the installed fiber optic cable exhibits no abnormal light blocking, scattering or reflective events (cracks, fiber separations, excessive micro bending, sharp bends, etc.) that have been induced during installation. End to End of fiber optic Cable from JB to FOPP shall be labeled by a “LEAD TAG” 5.6.1 Test Equipment •
Optical Time Domain Reflectometer (OTDR)
•
Single Mode Module
•
Appropriate Connectors, Adapters, Pigtails etcetera.
5.6.2 Test Procedure When all the splices are completed for an FOC Segment, measure the splice loss as follows: •
Measure the splice loss of each fiber using the Optical Time Domain Reflectometer (OTDR).
•
OTDR data will be recorded on a CD for evaluation and hard copy printout using a PC with the OTDR Manufacturer’s software.
•
Produce Hard-copy printouts of the end-to-end fiber at the design wavelength of 1550 nm and 1310 nm for all fibers in a cable segment. Ensure that each printout is annotated as to the station the shot is from, and have the Saudi Aramco Representative initial the printout.
•
Repeat this procedure for all fibers involved.
•
Review each OTDR reading to confirm that reflective events not associated with the known splice points do not exist.
•
Repeat the above steps in the opposite direction. The splice loss is calculated from the average of these two values.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 10 of 16
5.6.3 Acceptable Criteria •
5.7
The maximum attenuation of each fiber within a cable, when normalized to a length of 1km.At wavelength=1,300 nm, shall be 0.5dB/km or less, and at wavelength=1,550 nm, shall be 0.3dB/km or less. FDP TO FDP OTDR & LIGHT SOURCE-POWER METER TEST
5.7.1 OTDR Test •
The purpose of this test is to characterize and record the end-to-end attenuation slope of the fiber optic cable from FDP to FDP, including splices and connectors.
•
Insertion loss of the individual splices shall have been performed and recorded using the fusion splicing equipment during installation of the cable in accordance with approved procedures.
Test Equipment: •
Optical Time Domain Reflectometer (OTDR) with 1550 nm and 1310 nm Laser sources.
Test Procedures: •
Disconnect all FDP fiber jumpers from the test fiber at both ends of the cable. Connect the OTDR to the fiber under test at the FDP at one end of the cable.
•
Set up the OTDR to perform 1550/1310 nm end-to-end cable loss measurement and adjust the screen to display cable length in meters and attenuation in dB.
•
Save the display to CD and print out the hard copy. Record the result on the Test Data Sheet.
•
Setup the OTDR to display individual splice loss. Display and record each splice in the fiber under test. Measure and record the splice loss. These measurements may be positive (apparent gain) or negative (loss).
•
Save the display to CD and print out the hard copy. Record the result on the test data sheet (AttachmentB).
•
Repeat steps 1 through 5 for each fiber in the test group.
•
Repeat steps 1 thru 6 in the opposite direction from the far end of the cable.
•
Average the bi-directional measurements and record the result on the test sheet. This is the splice loss.
5.7.2 Light Source and Power Meter Test •
Optical loss testing uses a source (such as a handheld FLS source) at one end, and a power meter (such as a handheld FOT meter) at the other end. Taking into account the source power, previously referenced, link loss is obtained from the optical power reaching the power meter. Testing in both directions is a must.
Purpose •
To measure the attenuation, reflectance, and optical return loss.
•
To measure the average loss per kilometer of the fiber.
Test Equipment •
Multi-Function Loss Tester
•
Power Meter
Accessories •
Test Cords.
•
Miscellaneous testing kits and accessories.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 11 of 16
Procedure NOTE: Testing will be at 1310 & 1550 nm 1. Check the EXFO FOT Tester: Select the optical module attached on the FOT configuration. Switch-on the power of the FOT and check the tester status. 2. Clean the end face of test cords and couplings. 3. Set reference levels and calibrate test sets to include fiber patch cords. 4. Connect fiber patch cord of transmitter side at one end (Site A) and receiver test set at other end (Site B) of the fiber under test. 5. Conduct light source / power meter test on both 1550nm and 1310nm wavelengths. 6. At completion of test, record test results in hard copy (Attachment B) and store result in test set Unit A instrument. 7. Repeat steps 4 thru 6 for all fiber at Site A. 8. Repeat steps 4 thru 7 for all fibers at Site B, where Unit A (transmitter) is now connected at Site B and receiver at Site A. 5.7.3 Acceptable Criteria •
The maximum attenuation of each fiber within a cable, when normalized to a length of 1km.At wavelength=1,300 nm, shall be 0.5dB/km or less, and at wavelength=1,550 nm, shall be 0.3dB/km or less.
5.7.4 Chromatic Dispersion test •
There are several methods used for testing CD (Chromatic Dispersion) in fibers. All involve testing at a variety of wavelengths using several discrete sources of various wavelengths, a tunable laser or a broadband source with a monochromator in the receiver and measuring the relative speeds of the signals. The data taken at discrete wavelengths is then analyzed to calculate the dispersion in terms of ps/nm/km.
•
Test methods use phase delay or time of flight and generally require access to both ends of the fiber as well as a second fiber for synchronization of the two test instruments at either end. However, an OTDR test method is also used where traces are taken at several discrete wavelengths and CD can be calculated from the data obtained from the traces, allowing testing in the field from one end of the fiber.
Standards
Description
IEC 60793-1-42
Measurement methods and test procedures—chromatic dispersion
As per EIA/TIA-455-169 / 18-SAMSS-625 Sec. 5.1.8. Requirement: The optical fiber cable chromatic dispersion shall not exceed@ 1550nm = 6.0 ps/(nm.km) Optical Link Loss Budget Calculation: Total losses allowed for satisfactory operation of an optical fiber system shall be calculated before start the test as per Saudi Aramco Standard SAES-T-624 and SAES-Z-020.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 12 of 16
Procedure: Clean the ports of both instruments and connect the low power port on the FTB-5800. Turn on FLS-5800 with red button and ensure that C+L shows on the front panel. Enable light source by pressing the blue on/off button. At receiver, verify proper power level by using the intensity meter button. Select a 2nm steps. Select averaging time of 1 second. Select standard as fiber type for the SMS-24 fiber or select unknown as appropriate. Enter measured fiber length. Scan CD. Record the CD values or store the traces. 5.7.5 Polarization Mode Dispersion test PMD (Polarization Mode Dispersion) is generally tested for fibers during manufacture or when being cabled in the field, it is common to test PMD on newly installed fibers which are intended for operation at high speeds, generally above 2.5 Gb/s or when upgrading fibers installed sometime in the past. Since PMD varies over time, a single test becomes an average and tests at a later time may be done for comparison. There are a number of commonly used test methods for PMD, some of which are limited to the manufacturing environment, while others can be used in the field. Essentially, all the test instruments have a source which can vary the polarization of the test signal and a measurement unit that can analyze polarization changes. Different method of PMD are a.
Fixed Analyzer Method (or Wavelength Scanning)
Equipment needed This method requires a broadband polarized source and a polarized (variable) optical spectrum analyzer (OSA)
Principle of the method From the power fluctuations spectrum, the mean period of the intensity modulation is measured. This is realized by counting the number of extrema (i.e., measuring the rate at which the state of polarization changes as wavelength changes), in order to give a mean DGD. Alternatively, a Fourier transform into the time domain will also give a graph, and the RMS DGD value is determined from the standard deviation of the Gaussian curve (for fiber links with strong mode coupling) b.
Jones Matrix Eigenanalysis (JME) (or Stokes Parameter Evaluation)
Equipment needed This method requires a tunable narrowband source with three linear polarizers and a polarimeter.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 13 of 16
Principle of the method The three known states of polarized light enable the polarimeter to obtain the Jones matrix. The Jones matrix val-ues at pairs of adjacent wavelengths provide the DGD value. The PMD is then calculated by simply averaging the obtained DGD values over the wavelengths. c.
Interferometry: Traditional Method (TINTY)
Equipment needed This method requires a broadband polarized source and an interferometer (Mach-Zehnder or Michelson).
Principle of the method For fiber links (usually strong mode coupling), the result is an interferogram with random phases, and the mean DGD value is determined from the standard deviation of its curve. Nevertheless, the fringe envelopes obtained are a combination of two functions. An algorithm must be used to try to remove the central auto correlation peak which contains no PMD information. d.
Interferometry: Generalized Method (GINTY)
Equipment needed This method requires a broadband polarized source, an interferometer (Mach-Zehnder or Michelson) with a polarization beam splitter, and two polarization scramblers.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 14 of 16
Principle of the method For fiber links (usually strong mode coupling), the result is an interferogram with random phases, and the mean DGD value is determined from the standard deviation of the curve. This time, the two signals of the polarization diversity detection allow to removing the contribution of the source auto-correlation peak. It is possible to obtain the interferogram without the central peak thanks to the polarization beam splitter. However the real benefit of this method is only obtained by the use of polarization scramblers, allowing to improving absolute uncertainty of the measurement results. Standard: As per IEC 60793-1-48 / EIA/TIA-455-124 / 18-SAMSS-625 Sec. 5.1.8.2 Requirement: The optical fiber cable polarization mode dispersion coefficient (PMD) shall not exceed @ 1550nm < 0.5 ps/√km Procedure: Connect the end of the fiber to the PMD Analyzer Interface (FC). Clean the patch cord. Connect the end of the fiber to light source through a clean patch cord. In the PMD application window you can see the indication of incoming light power. For an accurate measurement, the power should be at least 30% of the length of the indicator column. Press start to indicate the measurement. The result will be displayed in graphic and numeric formats. The result table will give you all the required data. The result can be saved or the print can be taken if required.
6.
SAFETY
CONTRACTOR / SUBCONTRACTOR shall follow the work permit procedure as defined in GI-2-100 (Permit to Work) for all the activities to be performed in the field. All workers will use proper PPE and the working area shall be keep clean and daily housekeeping shall be carried out. A daily brief tool box meeting will be held prior to start the activities.
7.
CALIBRATION •
8.
Valid Equipment Calibration Certificates shall be provided to SAPID review prior to any test.
ATTACHMENT
Attachment 01
-
Optical Fiber Cable Splicing Records (FORM-LTA2-563)
Attachment 02
-
Optical Fiber Cable Acceptance Test Record (FORM-LTA2-562)
Attachment 03
-
SATIP-T-624 & SAIC‘s “Not attached” Applicable SAIC will be used as per stage wise Inspection.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 15 of 16
OPTICAL FIBER CABLE SPLICING RECORDS
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 16 of 16
OPTICAL FIBER CABLE ACCEPTANCE TEST RECORD
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 2 of 16
INDEX INDEX .......................................................................................................................................................2 AMENDMENTS AND REVISIONS ..........................................................................................................3 1.
SCOPE AND PURPOSE ...............................................................................................................4
2.
DEFINITIONS AND ABBREVIATIONS INTRODUCTION ............................................................4 2.1
PROJECT DEFINITIONS .........................................................................................................4
2.2
ACRONYMS .............................................................................................................................4
3.
REFERENCE CODES AND STANDARDS ...................................................................................5 3.1
COMPANY DOCUMENTS........................................................................................................5
3.2
CONTRACTOR DOCUMENTS ................................................................................................5
4.
RESPONSIBILITY .........................................................................................................................5
5.
FIBER OPTIC CABLE FIELD ACCEPTANCE TEST PROCEDURE ...........................................6 5.1
GENERAL .................................................................................................................................6
5.2
PRE-INSTALLATION CABLE TEST PROCEDURES .............................................................6
5.3
PRE-INSTALLATION CABLE REEL TEST .............................................................................6
5.4
FIBER OPTIC CABLE SPLICING / TERMINATION PROCEDURE........................................7
5.5
SPLICE LOSS TEST ................................................................................................................8
5.6
END TO END FIBER OPTIC CABLE OTDR TEST .................................................................9
5.7
FDP TO FDP OTDR & LIGHT SOURCE-POWER METER TEST ........................................ 10
6.
SAFETY ...................................................................................................................................... 14
7.
CALIBRATION ............................................................................................................................ 14
8.
ATTACHMENT ........................................................................................................................... 14
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 3 of 16
AMENDMENTS AND REVISIONS Amendment and Revision
Date
Page
Description
CONTRACTOR Rep.
X1
15-09-2016
All
Issued for Inter Disciplinary Check (IDC)
PB
A
20-11-2016
All
Issued for Approval
PB
B
05-03-2017
All
Re-issued for Approval Company comments are incorporated in page # 11 section 5.7.3 and also comments are covered in page # 14 section 7
PB
00
31-05-2017
All
Issued for construction Company comments are incorporated (FD/T-3719/17)
PB
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 4 of 16
1.
SCOPE AND PURPOSE
This document describes the applicable procedures to be used at STAR Fabrication Yard in splicing and testing of the fiber optical cable supplied under LTA project for Wellhead Platforms as applicable. Splicing and testing procedure for all the fiber optical cables associated with the project will be implemented in compliance with the Saudi Aramco Engineering Standard. To ensure that the telecommunications, conduits and cable works including inspections and testing activities are carried out in accordance with the project specifications and manufacturer’s instruction as well as meet acceptable workmanship and installation standard. In case of any conflict between this procedure and other applicable standards, SAUDI ARAMCO standards will prevail
2.
DEFINITIONS AND ABBREVIATIONS INTRODUCTION
2.1
PROJECT DEFINITIONS
COMPANY
SAUDI ARABIAN OIL COMPANY (IK)
CONTRACTOR
Consortium of STAR and Snamprogetti
SUBCONTRACTOR
Company assigned by Consortium to perform Activity
CERTIFYING AUTHORITY
The authority entrusted by COMPANY for the certification “fit for purpose” of the WORK
PROJECT
Maintain Potential Facilities Offshore Long Term Agreement
SUPPLIER/VENDOR
Agency supplying the material as specified and required by the contractor
2.2
ACRONYMS
PM
PROJECT MANAGER
PQM
PROJECT QUALITY MANAGER
QCM
QUALITY CONTROL MANAGER
SAPMT
SAUDI ARAMCO PROJECT MANAGEMENT TEAM
SAPID
SAUDI ARAMCO PROJECT INSPECTION DEPARTMENT
OTDR
OPTICAL TIME DOMAIN REFLECTOMETER
FDP
FIBER DISTRIBUTION PANEL
FOC
FIBER OPTIC CABLE
nm
NANOMETER
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 5 of 16
3.
REFERENCE CODES AND STANDARDS
3.1
COMPANY DOCUMENTS
Document Number
Title
Scope of work : Applicable Project SOW Schedule “Q”
Quality requirements
SAES-T-018
Telecommunications - Symbols, Abbreviations and Definitions
SAES-T-624
Telecommunications – Outside Plant Fiber Optic
SAES-T-625
Inter and Intra Building Fiber Optic Communication Cables
SAES-T-632
Telecommunications Cable Splicing
SAES-T-634
Telecommunication – Cable Testing and Acceptance
SAES-T-795
SATIP / SAIC / SATR
Communications Facility Grounding Systems Telecommunications: Electrical Coordination - Protection at Power Plants and Radio Stations Saudi Aramco Inspection Requirements
DE-119890
Procedure for Instrumentation and Control Systems Installation
GI 02-100
General Instruction - Work permit system
GI 05-002
Loss Prevention Policy implementation
SAES-T-887
3.2
CONTRACTOR DOCUMENTS Document Number
Title
00-C-C-00-CO-P-QA-00-001
Project Quality Plan
00-C-C-00-CO-P-QA-00-009
Control and Monitoring of Measuring Devices
00-C-C-00-ST-P-QA-00-001
Material Management and Control Procedure
00-C-C-00-ST-P-QA-00-038
RFI issuance and Control procedure
4.
RESPONSIBILITY
Project Manager -- shall be responsible for the overall implementation of this procedure, coordination with vendor / sub-Contractor, supply the drawing and materials necessary to ensure efficient execution of works in accordance with the project specification Communication QC Inspector -- All Installation shall be supervised by the Project Engineer/ Site superintended The Inspection shall be performed as specified in SATIP’s and relevant SAIC’s and witnessed by Communication QC Inspector. All Inspection activities shall be coordinated with Client representative and ensure that this procedure and requirement are being followed. Communication QC Inspector shall raise an RFI to SAPID start of any activity as required in applicable SATIP’s and relevant SAIC’s.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 6 of 16
5.
FIBER OPTIC CABLE FIELD ACCEPTANCE TEST PROCEDURE
5.1
GENERAL
This document details the test plans and acceptance criteria for procedures to be carried out before and after installation of the cable to verify that: •
The Fiber Optic Cable exhibits no abnormal light blocking, scattering or reflective event (cracks, fiber separations or excessive micro-bending) that might have occurred during transporting or installation
•
Total Line Loss measurement meets project design specifications
•
All Cable splice and testing shall be performed after necessary notification is been issued to Telecom PID prior to 48 hrs. of scheduled inspection, which is hold point for SAPID in accordance with SAES-T-624
5.2
PRE-INSTALLATION CABLE TEST PROCEDURES
This test will be conducted prior to receipt of the cable from the lay-down yard. This includes visual inspection of the cable and test using an Optical Time Domain Reflectometer to check that the fiber optic cable exhibits no abnormal light blocking, scattering or reflective events that have been induced during transportation. 5.2.1 Visual Inspection The purpose of the Visual Inspection is to verify that the cable sustained no damage during shipment and to verify that the number of fibers and their color coding complies with the contractual specifications. An evaluation of the quality of cable spooling onto the delivery drums and their visual appearance shall be conducted. Cable Specifications shall be verified against the Manufacturers’ Cable Test Report supplied with each reel of cable. 5.2.2 Procedure All cables shall be inspected to verify fiber counts, fiber coding, spooling and visual appearance. Cable marking shall be checked against the Manufacturers’ Cable Test Report. 5.2.3 Acceptance Criteria Fiber count and coding shall be as specified on the Manufacturer supplied Cable Test Report. The cables shall be coiled onto the delivery drum in even layers, allowing final packaging to prevent the cables from uncoiling and the layers on the drum tangling during transport. Visual inspection shall confirm that there is no physical damage to the cable drum and cable. 5.3
PRE-INSTALLATION CABLE REEL TEST
This purpose of the OTDR test is to verify that the cable sustained no damage during shipment. This test will be conducted prior to transport of the cable to the work site. Before conducting this test, a visual inspection will be performed to ensure that there is no physical damage to the cable reel. 5.3.1 Test Equipment •
Optical Time Domain Reflectometer (OTDR)
•
Elastomeric Splice or Bare Fiber Adapter
5.3.2 Test Procedure •
All fibers on the cable reel are to be tested by means of an OTDR.
•
Remove a sufficient portion of the cable sheath and clean it for testing.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 7 of 16
•
Strip and cleave the fiber.
•
Connect pigtail to the OTDR.
•
Connect the bare fiber to the pigtail with an Elastomeric Splice or bare fiber adapter.
•
Run the OTDR test to check for abnormalities and to measure the cable length, total loss and average loss per kilometer.
•
OTDR data will be recorded on a CD for evaluation and printout using a PC with the OTDR manufacturer’s software.
•
Repeat the above steps for each fiber.
•
The cable will be kept ready for installation if there is no discrepancy during the reel test.
•
The cable will be re-sealed after the completion of the test
•
Saudi Aramco Approved and certified technician and splicer will do and conduct cable splicing and testing
•
FOC Drum Reel test shall be witnessed by Saudi Aramco Project Inspection Department.
5.3.3 Acceptable Criteria •
No peak discontinuities above 0.1 dB at 1550 nm and 1310 nm.
•
Post Installation Test (POT) shall be conducted and witnessed by Telecom PID prior to Splicing at JB 001.
5.4
FIBER OPTIC CABLE SPLICING / TERMINATION PROCEDURE
5.4.1 Splicing Recommendations •
Cleanliness is critical to consistently achieve good splices. When preparing the fiber for splicing, the following things should be kept in mind.
•
The equipment used for the actual splicing should be kept clean and dust free. Any minute particle or debris in the fiber alignment area could result in bad fiber alignment.
•
Outside splicing should be carried out in a clean environment as much as possible. The splicing area shall be large enough to have standing up room for contractor, SAPMT and PID to witness the splicing.
•
Metallic Member of Fiber Optic Cable shall be grounded and bonded
•
Under FO Cable sheath – The shields & Armors of all cables entering telecom Facilities must be bonded together using # 6 AWG (16mm2) in compliance with SAES-T-887 par 5.8.6B.
5.4.2 Equipment Equipment used in splicing must be in excellent working condition. The following equipment shall be used in splicing Fiber Optic Cable. •
Splicing Machine Fujikura FMS 40S / 50S / Sumitomo Microcore Type 39: Splicing machine using fusion method will be used. The splice machine shall have a visual monitor miniature CRT/ LCD viewing screen and shall provide a read-out estimate of the splice loss. The machine shall be powered by 117 VAC, 50/60 Hz and equipped with rechargeable batteries for portable operation.
Connectorization Kit: Connectorization kit using heating Technology is used. •
Stripper: Stripper must be identified as Fiber Optic Cable Stripper and not general mechanical tool. The stripper should be of the correct size and in good condition. The stripper should be cleaned frequently. Any debris on the stripper could damage the fiber possibly causing it to break during cleaving / splicing.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 8 of 16
•
Cleaver: The cleaver shall be of highest quality to assure uniform, clean, 90 degree fiber end. The Cleaver should have a sharp blade that is perpendicular to the fiber axis. The cleaver Blade should either be rotated or replaced as soon as to show sign of wear.
•
Equipment should have updated calibration conducted by Saudi Aramco approved calibration agency.
•
Calibration shall be performed at established periods as specified in the most stringent of COMPANY standards, other applicable standards, or manufacturer recommendations; if no standards apply, the calibration cycle shall not exceed six months.
5.4.3 Splicing •
Care must be taken to see that there is no dust, coating material or cable fill compound in the cable.
•
The cable to be cut to the required length and outside insulation removed.
•
Strip the cable using the stripper. It should be ensured that multiple passes with stripping tool is not done, which may cause damage to the cable.
•
After stripping, debris should be cleaned off the fiber using an alcohol wipe. This wipe should be replaced with fresh wiper after each use.
•
Cleave the cable to get perpendicular ends. The cleaver should be cleaned and there should be no stray pieces of fiber left in the cable.
•
After cleaving, the fiber end should not be wiped again. This could leave debris on the end face of the fiber, which can cause problem with splicing.
•
Put the sleeve before placing the cable in the splicing machine.
•
Place the ends of the cable in the splicing machine and splice it. Note down the Theoretical splice loss for each fiber.
•
If any metallic member is used as strength member, it must be Grounded to main Grounding Grid as per manufacture’s recommendations.
•
Secure the cable in an optical fiber splicer organizer
•
Bond and ground all metallic members of the cable. The measured ground resistance shall be 25 ohms or less.
•
To prevent fiber damage handle buffer tubes and fibers carefully,when bending and placing in the organizer.
•
While Working at Junction Box barricade shall be Installed using Tarpaulin an a table to accommodate OTDR to ensure safety of bare Fiber Optic Cable during splicing as practicable.
5.5
SPLICE LOSS TEST
This test is to verify that the fiber optic splice loss meets the requirements of SAES-T-624. The splice loss is calculated from the fiber core offset and core deformation of the spliced portion by the High Resolution Direct Core Monitoring (HDCM) of the proposed fusion splicing machine. 5.5.1 Test Equipment •
EXPO-FPD-400 or equivalent.
5.5.2 Test Procedure •
Prepare the fiber for splicing by the fusion splicing machine.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 9 of 16
•
Set up the splicing machine as per the operation manual.
•
Align the fibers in accordance with the operation manual.
•
Splice the fiber.
•
After the fusion splice is finished, record the splice indicated by the machine display in the Optical Fiber Cable Splicing Records form shown in Attachment-A. (Note: If after 3 splice attempts, a loss of 0.1dB or less is not achieved, the fourth loss is recorded. The splice loss will later be checked by OTDR measurement as part of cable splice testing.)
5.5.3 Acceptable Criteria •
Average splice loss over a cable section shall not exceed 0.05dB per splice and any individual splice loss shall not exceed 0.1 dB.
•
0.1dB average link splice loss with no single splice loss above 0.2dB for mechanical splices.
•
Connectors shall have insertion losses of 0.5dB or less.
5.6
END TO END FIBER OPTIC CABLE OTDR TEST
This test is to verify that the installed fiber optic cable splices meet the attenuation specifications described below. This test will also verify that the installed fiber optic cable exhibits no abnormal light blocking, scattering or reflective events (cracks, fiber separations, excessive micro bending, sharp bends, etc.) that have been induced during installation. End to End of fiber optic Cable from JB to FOPP shall be labeled by a “LEAD TAG” 5.6.1 Test Equipment •
Optical Time Domain Reflectometer (OTDR)
•
Single Mode Module
•
Appropriate Connectors, Adapters, Pigtails etcetera.
5.6.2 Test Procedure When all the splices are completed for an FOC Segment, measure the splice loss as follows: •
Measure the splice loss of each fiber using the Optical Time Domain Reflectometer (OTDR).
•
OTDR data will be recorded on a CD for evaluation and hard copy printout using a PC with the OTDR Manufacturer’s software.
•
Produce Hard-copy printouts of the end-to-end fiber at the design wavelength of 1550 nm and 1310 nm for all fibers in a cable segment. Ensure that each printout is annotated as to the station the shot is from, and have the Saudi Aramco Representative initial the printout.
•
Repeat this procedure for all fibers involved.
•
Review each OTDR reading to confirm that reflective events not associated with the known splice points do not exist.
•
Repeat the above steps in the opposite direction. The splice loss is calculated from the average of these two values.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 10 of 16
5.6.3 Acceptable Criteria •
5.7
The maximum attenuation of each fiber within a cable, when normalized to a length of 1km.At wavelength=1,300 nm, shall be 0.5dB/km or less, and at wavelength=1,550 nm, shall be 0.3dB/km or less. FDP TO FDP OTDR & LIGHT SOURCE-POWER METER TEST
5.7.1 OTDR Test •
The purpose of this test is to characterize and record the end-to-end attenuation slope of the fiber optic cable from FDP to FDP, including splices and connectors.
•
Insertion loss of the individual splices shall have been performed and recorded using the fusion splicing equipment during installation of the cable in accordance with approved procedures.
Test Equipment: •
Optical Time Domain Reflectometer (OTDR) with 1550 nm and 1310 nm Laser sources.
Test Procedures: •
Disconnect all FDP fiber jumpers from the test fiber at both ends of the cable. Connect the OTDR to the fiber under test at the FDP at one end of the cable.
•
Set up the OTDR to perform 1550/1310 nm end-to-end cable loss measurement and adjust the screen to display cable length in meters and attenuation in dB.
•
Save the display to CD and print out the hard copy. Record the result on the Test Data Sheet.
•
Setup the OTDR to display individual splice loss. Display and record each splice in the fiber under test. Measure and record the splice loss. These measurements may be positive (apparent gain) or negative (loss).
•
Save the display to CD and print out the hard copy. Record the result on the test data sheet (AttachmentB).
•
Repeat steps 1 through 5 for each fiber in the test group.
•
Repeat steps 1 thru 6 in the opposite direction from the far end of the cable.
•
Average the bi-directional measurements and record the result on the test sheet. This is the splice loss.
5.7.2 Light Source and Power Meter Test •
Optical loss testing uses a source (such as a handheld FLS source) at one end, and a power meter (such as a handheld FOT meter) at the other end. Taking into account the source power, previously referenced, link loss is obtained from the optical power reaching the power meter. Testing in both directions is a must.
Purpose •
To measure the attenuation, reflectance, and optical return loss.
•
To measure the average loss per kilometer of the fiber.
Test Equipment •
Multi-Function Loss Tester
•
Power Meter
Accessories •
Test Cords.
•
Miscellaneous testing kits and accessories.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 11 of 16
Procedure NOTE: Testing will be at 1310 & 1550 nm 1. Check the EXFO FOT Tester: Select the optical module attached on the FOT configuration. Switch-on the power of the FOT and check the tester status. 2. Clean the end face of test cords and couplings. 3. Set reference levels and calibrate test sets to include fiber patch cords. 4. Connect fiber patch cord of transmitter side at one end (Site A) and receiver test set at other end (Site B) of the fiber under test. 5. Conduct light source / power meter test on both 1550nm and 1310nm wavelengths. 6. At completion of test, record test results in hard copy (Attachment B) and store result in test set Unit A instrument. 7. Repeat steps 4 thru 6 for all fiber at Site A. 8. Repeat steps 4 thru 7 for all fibers at Site B, where Unit A (transmitter) is now connected at Site B and receiver at Site A. 5.7.3 Acceptable Criteria •
The maximum attenuation of each fiber within a cable, when normalized to a length of 1km.At wavelength=1,300 nm, shall be 0.5dB/km or less, and at wavelength=1,550 nm, shall be 0.3dB/km or less.
5.7.4 Chromatic Dispersion test •
There are several methods used for testing CD (Chromatic Dispersion) in fibers. All involve testing at a variety of wavelengths using several discrete sources of various wavelengths, a tunable laser or a broadband source with a monochromator in the receiver and measuring the relative speeds of the signals. The data taken at discrete wavelengths is then analyzed to calculate the dispersion in terms of ps/nm/km.
•
Test methods use phase delay or time of flight and generally require access to both ends of the fiber as well as a second fiber for synchronization of the two test instruments at either end. However, an OTDR test method is also used where traces are taken at several discrete wavelengths and CD can be calculated from the data obtained from the traces, allowing testing in the field from one end of the fiber.
Standards
Description
IEC 60793-1-42
Measurement methods and test procedures—chromatic dispersion
As per EIA/TIA-455-169 / 18-SAMSS-625 Sec. 5.1.8. Requirement: The optical fiber cable chromatic dispersion shall not exceed@ 1550nm = 6.0 ps/(nm.km) Optical Link Loss Budget Calculation: Total losses allowed for satisfactory operation of an optical fiber system shall be calculated before start the test as per Saudi Aramco Standard SAES-T-624 and SAES-Z-020.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 12 of 16
Procedure: Clean the ports of both instruments and connect the low power port on the FTB-5800. Turn on FLS-5800 with red button and ensure that C+L shows on the front panel. Enable light source by pressing the blue on/off button. At receiver, verify proper power level by using the intensity meter button. Select a 2nm steps. Select averaging time of 1 second. Select standard as fiber type for the SMS-24 fiber or select unknown as appropriate. Enter measured fiber length. Scan CD. Record the CD values or store the traces. 5.7.5 Polarization Mode Dispersion test PMD (Polarization Mode Dispersion) is generally tested for fibers during manufacture or when being cabled in the field, it is common to test PMD on newly installed fibers which are intended for operation at high speeds, generally above 2.5 Gb/s or when upgrading fibers installed sometime in the past. Since PMD varies over time, a single test becomes an average and tests at a later time may be done for comparison. There are a number of commonly used test methods for PMD, some of which are limited to the manufacturing environment, while others can be used in the field. Essentially, all the test instruments have a source which can vary the polarization of the test signal and a measurement unit that can analyze polarization changes. Different method of PMD are a.
Fixed Analyzer Method (or Wavelength Scanning)
Equipment needed This method requires a broadband polarized source and a polarized (variable) optical spectrum analyzer (OSA)
Principle of the method From the power fluctuations spectrum, the mean period of the intensity modulation is measured. This is realized by counting the number of extrema (i.e., measuring the rate at which the state of polarization changes as wavelength changes), in order to give a mean DGD. Alternatively, a Fourier transform into the time domain will also give a graph, and the RMS DGD value is determined from the standard deviation of the Gaussian curve (for fiber links with strong mode coupling) b.
Jones Matrix Eigenanalysis (JME) (or Stokes Parameter Evaluation)
Equipment needed This method requires a tunable narrowband source with three linear polarizers and a polarimeter.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 13 of 16
Principle of the method The three known states of polarized light enable the polarimeter to obtain the Jones matrix. The Jones matrix val-ues at pairs of adjacent wavelengths provide the DGD value. The PMD is then calculated by simply averaging the obtained DGD values over the wavelengths. c.
Interferometry: Traditional Method (TINTY)
Equipment needed This method requires a broadband polarized source and an interferometer (Mach-Zehnder or Michelson).
Principle of the method For fiber links (usually strong mode coupling), the result is an interferogram with random phases, and the mean DGD value is determined from the standard deviation of its curve. Nevertheless, the fringe envelopes obtained are a combination of two functions. An algorithm must be used to try to remove the central auto correlation peak which contains no PMD information. d.
Interferometry: Generalized Method (GINTY)
Equipment needed This method requires a broadband polarized source, an interferometer (Mach-Zehnder or Michelson) with a polarization beam splitter, and two polarization scramblers.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 14 of 16
Principle of the method For fiber links (usually strong mode coupling), the result is an interferogram with random phases, and the mean DGD value is determined from the standard deviation of the curve. This time, the two signals of the polarization diversity detection allow to removing the contribution of the source auto-correlation peak. It is possible to obtain the interferogram without the central peak thanks to the polarization beam splitter. However the real benefit of this method is only obtained by the use of polarization scramblers, allowing to improving absolute uncertainty of the measurement results. Standard: As per IEC 60793-1-48 / EIA/TIA-455-124 / 18-SAMSS-625 Sec. 5.1.8.2 Requirement: The optical fiber cable polarization mode dispersion coefficient (PMD) shall not exceed @ 1550nm < 0.5 ps/√km Procedure: Connect the end of the fiber to the PMD Analyzer Interface (FC). Clean the patch cord. Connect the end of the fiber to light source through a clean patch cord. In the PMD application window you can see the indication of incoming light power. For an accurate measurement, the power should be at least 30% of the length of the indicator column. Press start to indicate the measurement. The result will be displayed in graphic and numeric formats. The result table will give you all the required data. The result can be saved or the print can be taken if required.
6.
SAFETY
CONTRACTOR / SUBCONTRACTOR shall follow the work permit procedure as defined in GI-2-100 (Permit to Work) for all the activities to be performed in the field. All workers will use proper PPE and the working area shall be keep clean and daily housekeeping shall be carried out. A daily brief tool box meeting will be held prior to start the activities.
7.
CALIBRATION •
8.
Valid Equipment Calibration Certificates shall be provided to SAPID review prior to any test.
ATTACHMENT
Attachment 01
-
Optical Fiber Cable Splicing Records (FORM-LTA2-563)
Attachment 02
-
Optical Fiber Cable Acceptance Test Record (FORM-LTA2-562)
Attachment 03
-
SATIP-T-624 & SAIC‘s “Not attached” Applicable SAIC will be used as per stage wise Inspection.
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 15 of 16
OPTICAL FIBER CABLE SPLICING RECORDS
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Maintain Potential Facilities Offshore Long Term Agreement Contract No.6600035841 (OOK) / 6600035823 (IK) Doc. No. 00-C-C-00-ST-P-QA-00-054
FIBER OPTICAL CABLE SPLICING AND TESTING PROCEDURE
Rev. 00
Date: 31-05-2017 Sheet 16 of 16
OPTICAL FIBER CABLE ACCEPTANCE TEST RECORD
UNCONTROLLED COPY
This document is CONFIDENTIAL and the sole property SAIPEM/SNAMPROGETTI/STAR CONSORTIUM. It shall not be shown to Third Parties nor used for purposes other than those for which it was prepared.
Related Documents
Method Statement For Fiber Optic
January 2021 1
Optic Fiber Connectors.ppt
February 2021 1
Method Statement For Earthworks
February 2021 1
Method Statement For Excavation
February 2021 2
Fiber Optic Guide Book_vol 1_viavi
February 2021 1More Documents from "kienna"
Method Statement For Road Works
January 2021 1
Method Statement For Fiber Optic
January 2021 1
Method Statement For Power Cable Pulling
January 2021 1
Uncontrolled Copy
January 2021 0