15-samss-503

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ARAMCO specs for submarine cables

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  • Previous Issue: 29 June 2005 Next Planned Update:1 March 2009 Revised paragraphs are indicated in the right margin Page 1 of 19 Primary contact: Basel A. Ishwait on 966-3-8745133

    CopyrightSaudi Aramco 2005. All rights reserved.

    Materials System Specification 15-SAMSS-503 2 August 2006 Submarine Power Cable 5 kV through 115 kV

    Electrical Systems Designs and Automation Standards Committee Members Ishwait, Basel A., Chairman Hamrani, Majed Muhsen, Vice Chairman Heikoop, Dirk Johannes Badrani, Hamed Sulaiman Shaikh Nasser, Ahmed Nasser Hassouneh, Awwad Shaban Fateel, Adel Mahdi Ghamdi, Abdulaziz Abdullah Hamood, Abdulrazaq Abduljabbar Zayan, Mahmoud Bahi El-Din Almadi, Soloman Musa Ba Hamdan, Mohammed Omar

    Saudi Aramco DeskTop Standards Table of Contents 1 Scope............................................................ 2 2 Conflicts and Deviations............................... 2 3 References.................................................... 2 4 Vendor Experience....................................... 3 5 General Description...................................... 3 6 Design and Construction.............................. 4 7 Factory Splices............................................. 10 8 Cable Inspection and Testing....................... 12 9 Cable Shipment............................................ 14 10 Environmental Data...................................... 15 11 Additional Information to be Supplied By Bidder.............................................. 15 Data Sheet......................................................... 18

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

    Page 2 of 19

    1 Scope

    This specification defines the mandatory requirements for the design, manufacture, factory inspection, testing, and shipment of three conductor, solid dielectric insulated, non-metallic sheathed, wire armored, submarine power cable rated for 5 kV, 15 kV, 35 kV, 69 kV or 115 kV. This specification includes, as an alternative, requirements for composite submarine cable also containing fiber optic cable. The finished submarine cable shall be designed for operation in a submarine and platform riser environment in waters of the Arabian Gulf or the Red Sea in water depths up to 70 m.

    Quantities of cable required and application data may be found in the Data Sheets which are a part of this specification.

    2 Conflicts and Deviations

    2.1 If there are any conflicts between this Specification and associated purchasing, project or engineering documents, this specification shall take precedence.

    2.2 Direct all requests to deviate from this Specification in writing to the Company or Buyer Representative, who shall follow internal company waiver procedure.

    2.3 The designation "Commentary" is used to label a sub-paragraph that contains comments that are explanatory or advisory. These comments are not mandatory, except to the extent that they explain mandatory requirements contained in this SAMSS.

    3 References

    The following is a summary of all the documents which have been mentioned within this Specification. The specific part(s) of these documents which are applicable have been identified throughout this Specification.

    3.1 Saudi Aramco References

    Saudi Aramco Materials System Specification

    18-SAMSS-625 Outside Plant - Fiber Optic Cable Specifications (Single Mode & Multiple Mode)

    Saudi Aramco Inspection Requirements

    Form 175-150100 Submarine Power Cable 5 kV through 115 kV

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

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    3.2 Industry Codes and Standards

    Association of Edison Illuminating Companies

    AEIC CS6 Specification for Ethylene Propylene Rubber Insulated Shielded Power Cables Rated 5 Through 69 kV

    AEIC CS7 Specifications for Crosslinked Polyethylene Insulated Shielded Power Cables Rated 69 Through 138 kV

    AEIC CS8 Specification for Extruded Dielectric, Shielded Power Cables Rated 5 Through 46 kV

    American Society for Testing and Materials

    ASTM A111 Zinc-Coated (Galvanized) Iron Telephone and Telegraph Line Wire

    ASTM B3 Standard Specification for Soft or Annealed Copper Wire

    ASTM B8 Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft

    ASTM B496 Standard Specification for Compact Round Concentric-Lay Stranded Copper Conductors

    Insulated Cable Engineers Association

    ICEA S-97-682 Utility Shielded Power Cables

    4 Vendor Experience

    Vendors responding to this specification shall have a minimum of 6 years of verifiable, proven field experience in manufacturing submarine power cables. Vendors shall supply a User List indicating company name, installation site, date of installation, and characteristics similar to cable quoted.

    5 General Description

    As a minimum, the cable shall consist of the following components:

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

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    5.1 Power Conductors

    Three power conductors of stranded copper, operating at a nominal 60 Hz and 4,160 V, 13,800 V, 34,500 V, 69,000 or 115,000 V as specified on the DATA SHEET.

    Core jacket of HMWLD Polyethylene

    Strand Sealant (Sealant between conductor strands or segments).

    Conductor Shield (Semiconducting shield around each conductor).

    Insulation - Cross-linked Polyethylene (XLPE) or Ethylene Propylene Rubber (EPR).

    Insulation Shield (Semiconducting shield around the insulation of each conductor).

    Metallic Shield.

    Lead Sheath - For 69 and 115 kV cables: required. For lower voltage cables: When specified on the DATA SHEET or when proposed.

    5.2 Fiber Optic Cable

    Fiber Optic Cable, when specified, with core jacket, located in an outer interstice.

    5.3 Filler

    Shaped formed Polypropylene or other plastic filler of cable core and interstices.

    5.4 Marker and Binder

    Cable marker (over the cable core, under the core binder).

    Cable binder of synthetic woven tape.

    5.5 Outer Cable Construction

    Bronze or copper tape (Terredo protection)

    Armor bedding of asphalt-flushed polypropylene

    Armor of galvanized steel wires

    Overall covering of asphalt-flushed polypropylene or nylon roving

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

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    6 Design and Construction

    6.1 Power Conductors

    6.1.1 Material

    Conductors shall be annealed copper in accordance with ASTM B3 or IEC 60228.

    6.1.2 Stranding

    Conductors shall be compressed concentric lay stranded in accordance with ASTM B8 Class B or compact round concentric lay stranded in accordance with ASTM B496.

    6.1.3 Strand Sealant

    The spaces between individual strand wires or segments of conductors shall be sealed to prevent the ingress of moisture using a material compatible with both the conductor and the conductor shielding and having a no-drip or flow temperature of at least 130C.

    6.1.4 Conductor Shield

    A semiconductor shield shall be extruded over the sealed conductor. The shield material must be thermosetting and compatible with both the conductor sealing material and the overlaying insulation. The shield shall be in accordance with applicable ICEA and AEIC specifications.

    6.1.5 Insulation

    Conductor insulation shall be either XLPE or EPR, as specified on the DATA SHEET. Insulation shall be phase-identified by using the colors black, red, and blue (Color coded ribbons laid under the metallic shields are acceptable) or by legend on the conductor jacket. The insulation color shall be in contrast with the semiconducting shield color to provide rapid visual identification of the two materials.

    6.1.5.1 Cross-Linked Polyethylene (XLPE) Cables Rated 5, 15 and 35 kV

    XLPE insulation for cables rated 5, 15 and 35 kV shall be a cross-linked thermosetting polyethylene conforming to the requirements of ICEA S-97-682 as modified by AEIC CS8. XLPE insulation shall be crosslinked using the dry curing process.

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

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    6.1.5.2 Ethylene Propylene Rubber (EPR) - Cables Rated 5, 15 and 35 kV

    EPR insulation for cables rated 5, 15 and 35 kV shall be an ozone-resistant, ethylene propylene based elastomer conforming to the requirements of ICEA S-97-682 as modified by AEIC CS8.

    6.1.5.3 Cross-Linked Polyethylene (XLPE) Cables Rated 69 and 115 kV

    XLPE insulation for cables rated 69 and 115 kV shall be a cross-linked thermosetting polyethylene conforming to the requirements of AEIC CS7. Insulation thickness shall be 16.5 mm (650 mils) for 69 kV rated cables and 20.3 mm (800 mils) for 115 kV rated cables. XLPE insulation shall be crosslinked using the dry curing process.

    6.1.5.4 Ethylene Propylene Rubber (EPR) - Cables Rated 69 kV

    EPR insulation for cables rated 69 kV shall be an ozone-resistant, ethylene propylene based elastomer conforming to the requirements of AEIC CS6. Insulation thickness shall be 16.5 mm (650 mils).

    6.1.6 Insulation Shield

    The insulation shield shall be a continuous black semiconducting thermosetting material, compatible with the insulation, extruded directly over and firmly bonded to the insulation. The shield shall be in accordance with applicable ICEA and AEIC or IEC specifications.

    6.1.7 Extrusion Method

    The semiconducting conductor shield, insulation, and semiconducting insulation shield shall be applied by the triple extrusion, single pass method or by a dry-cured process.

    6.1.8 Metallic Shield

    Metallic shield shall meet either 6.1.8.1 or 6.1.8.2.

    6.1.8.1 Two copper tapes, each with a minimum thickness of 0. 125 mm, shall be helically applied over the extruded semiconducting insulation shield with a minimum 25% overlap. The tapes shall be made electrically continuous

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

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    throughout the cable length by soldering or welding all splices. The tapes shall be free of burrs and sharp edges and shall be applied in the same lay direction. Copper tapes shield is not required if a lead sheath is specified. (Un-necessary and allows longitudinal water ingress). Water-swellable tape must be applied on both sides of the copper tape.

    6.1.8.2 Copper-wire metallic shield with sufficient ampacity to safely conduct the ground-fault current.

    6.1.9 Lead Sheath

    A separate lead sheath shall be applied over each insulated conductor for all cables rated 69 and 115 kV, and, if specified on the DATA SHEET, for cables rated 5, 15 and 35 kV. The lead sheath shall meet the requirements of ICEA S-97-682. The lead sheath can be a lead alloy.

    6.1.10 Individual Conductor Cable Jacket

    A 3.05mm (120 mil) jacket of high molecular weight low density (HMWLD) polyethylene shall be extruded over the cable core conductor. The minimum thickness of the jacket shall be not less than 80% of the average thickness. (Mechanically superior, withstand water pressure better). The polyethylene jacket is to be semi-conductive and in contact with each other. (This is to eliminate circulating currents).

    6.2 Fiber Optic Cable

    6.2.1 Requirements

    The requirements for fiber optic cable, if specified, are found in 18-SAMSS-625.

    Fiber optic cables, when specified, shall have a minimum of twelve optical fiber units.

    6.2.2 Optical Fibers

    Optical fibers shall be in accordance with 18-SAMSS-625.

    Unless otherwise specified by Saudi Aramco, dispersion-shifted single mode optical fibers shall be provided. If multimode optical fibers are specified as permitted below, at least four single mode optical fiber units must also be provided.

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

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    If specified by Saudi Aramco, multimode optical fibers may be included in fiber optic cables only for cables two kilometers or less in length.Each coated optical fiber shall be contained in a loose tube buffer. The space between the fiber and the inside of the tube shall be filled with a filling compound that will retard the ingress and axial migration of water or gas through the cable core. Buffers shall be in accordance with 18-SAMSS-625. Alternate constructions may be approved by the Company or Buyer Representative with the concurrence of the Coordinator, Electrical Systems Division, Consulting Services Department.

    Each optical fiber shall have a protective coating or jacket in accordance with 18-SAMSS-625.

    Fiber and buffer tube identification shall be in accordance with 18-SAMSS-625.

    6.2.3 Fiber Optic Cable Core Assembly

    Fiber optic units, fillers, and strength members, if required, shall be assembled to form a cylindrical core in accordance with 18-SAMSS-625. A layer of nonhygroscopic and nonwicking dielectric material shall be applied over the core in accordance with 18-SAMSS-625. An outer jacket with a minimum thickness of 1.4 mm and meeting the requirements of 18-SAMSS-625 shall provide the cable with a covering suitable for use in a wet type composite submarine cable. The cores shall be complete with filling compounds applied into the interstices of the core and to the core covering.

    6.3 Cable Assembly

    6.3.1 Core Assembly

    Three power conductors shall be cabled together, with the fiber optic cable (if specified) in an outer interstice. The individual conductors shall be cabled together with a left-hand lay and with a length of lay not exceeding 35 times the individual core diameter. The interstices and spaces of the cable shall be filled with polypropylene or other suitable filler to form a firm cylindrical cross-section.

    If required, in order to minimize the overall composite cable diameter, the fiber optic cable may be configured into three jacketed cores.

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

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    Allow the use of shaped formed plastic fillers as an alternative to the fiber fillers especially for large cables which will make easier to form round shape cable).

    6.3.2 Cable Core Marking

    The following information shall be repeated continuously, embossed on the core jacket or filler:

    a) Rated voltage

    b) Insulation type and temperature rating

    c) Manufacturer's name and year of manufacture

    d) Number and size of the conductors (mm, AWG or kcmil)

    6.3.3 Cable Core Binder

    A synthetic woven tape shall be applied half-lapped over the core.

    6.3.4 Terredo Protection

    One 0.26mm (10 mil) or two 0.13mm (5 mil) thick copper or bronze tapes shall be helically applied, over the cable core jacket, with a 20% overlap.

    6.4 Mechanical Protection

    6.4.1 Armor Bedding

    A bedding of polypropylene shall be applied over the terredo protection tape. The bedding shall be completely flushed with an asphaltic compound or a synthetic compound with equivalent performance.

    6.4.2 Galvanized Steel Wire Armor

    Zinc-coated low-carbon steel armor wires shall be applied over the polypropylene bedding to provide complete armor coverage. The weight of the zinc coating shall be in accordance with ASTM A111 for Class B coated wire. The armor wires shall not be individually covered with fibrous or extruded material of any kind but shall be flushed with an asphaltic compound.

    6.4.3 Overall Covering

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

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    The armored cable shall be served with a double layer of polypropylene or nylon rope type roving to form an abrasion resistant outer covering. The inner layer shall be flushed with an asphaltic compound and the completed cable covered with a suitable material. The polypropylene shall be made of material that will resist UV sunlight. Jute material should not be used as jute rots. Minimum thickness of overall covering shall not be less than 2.79 mm (110 mils).

    6.4.4 The outer layer of the overall covering shall include a few bright colored ropes for identification and distinction between circuits.

    6.4.5 Conduct partial discharge test on the section of the cable joints in-lieu of the X-RAY. The X-RAY method does not provide true indication of the insulation reliability.

    7 Factory Splices

    7.1 General

    7.1.1 Core splicing shall be performed prior to armoring. Core splicing after armoring is not acceptable.

    7.1.2 Splices shall be of the flexible type having an overall diameter approximately equal to the original cable. Vendor shall supply the maximum diameter over factory cable splices, as required by the DATA SHEET. All materials used for molding shall be compatible with the cable components.

    7.1.3 For initial orders, a test splice, witnessed by the Buyer, shall be performed prior to the commencement of factory production splicing. The test splice shall be performed on a section of the first cable length produced and shall duplicate the materials and conditions under which the factory production splicing is to be performed. The test splice shall be radiographed or electrically tested, cut from the cable, sectionalized, and examined for acceptability in meeting the criteria established for an acceptable weld in Paragraph 7.2.3, below, including insulation and jacket splices, etc. For second or later orders, a test splice, witnessed by the buyer shall be performed as above, or the splices may be type-tested as required by CIGRE Recommendation 171.

    7.1.4 It is the Buyer's intent to require of the Vendor to establish and maintain a baseline of splice information such that production welds, insulation and jacket splices, etc., may be evaluated unambiguously in the determination of an acceptable splice.

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

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    7.1.5 Initial factory production splicing shall not proceed without written agreement between the Vendor and the Buyer confirming that splicing procedures, including conductor welding qualification, proposed splicing equipment, and the test splice are acceptable.

    7.2 Conductor Welding Qualification

    7.2.1 Each power conductor shall be welded using qualified welder operators and weld procedures qualified with plant welding equipment for use in production welding.

    7.2.2 The qualification of weld procedures shall be made using a conductor of the same size and material to be used in production welding. Parameters recorded during the procedure qualification are to be documented in a shop procedure for use by welding operators during production welding.

    The Vendor must perform five acceptable welds (acceptable welds are defined as meeting the requirements of Paragraph 7.2.3, below), using required weld parameters, i.e. current, pressure, upset travel distance of platen, and other essential parameters as recommended by the equipment manufacturer and further established by the Vendor for reproducible weld quality.

    7.2.3 Weld samples shall be evaluated as follows and must meet the listed acceptance criteria:

    a) Visual inspection of the completed welds shall show consistent width of welds, uniformity of upset over the weld circumference, uniformity of axial shortening for the welded samples, full fusion, an d no cracking.

    b) Three welded tensile test samples are required for the welded conductors. Each welded sample must meet a minimum of 80% of the tensile strength as compared to a sample non-welded section of the conductor.

    c) Two additional welded test samples must be cross-sectioned to examine the welded area. The welded area and adjacent zone shall be polished and prepared to allow examination by 50X magnification for lack of fusion (none is allowed in the weld area); cracking (none is allowed in the weld area); voids/porosity (only minor scattered porosity is allowed in the weld area with no individual pore exceeding 10% of the conductor diameter but not to exceed 1.6 mm (1/16") diameter).

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

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    7.2.4 Welder operators shall be qualified using the weld procedure established in Paragraph 7.2.3, above. Alternately, three sample welds shall be welded by each operator and examined visually (Paragraph 7.2.3 a), above) followed by tensile testing which must meet the 80% criteria as noted in Paragraph 7.2.3b). Operators must be qualified using the same plant equipment to be used in production welding utilized on the cable plant production line.

    7.3 Power Conductor Production Welding

    After each production weld, the weld shall be visually examined in accordance with 7.2.3 a). If the weld is questionable or unacceptable, the core area containing the weld shall be removed and the splice procedure repeated.

    7.4 Splices

    7.4.1 Insulation splices shall utilize the hot molded method. After curing of the insulation, the splice shall be electrically tested or a radiograph shall be made of the splice area and that area overlapping onto the original extruded cable insulation. The purpose of the radiograph will be to verify concentricity of the insulation and the absence of voids within the insulation. Vendor may use other methods to verify concentricity and absence of voids if approved by the Company or Buyer representative and concurred to by the Coordinator, Electrical Systems Division, Consulting Services Department.

    7.4.2 Jacket splices shall overlap the original extruded jacket material so as to retain the watertight integrity of the jacket.

    7.4.3 Metallic tapes used for shielding and/or terredo protection shall be made electrically continuous throughout by soldering or welding.

    7.4.4 Welding shall be utilized to splice the individual armor wires.

    7.4.5 Splicing requirements for fiber optic cable (if specified) will be contained in an attached Addendum.

    7.4.6 A history of all splices, both satisfactory and non-satisfactory, shall be retained for review by the Buyer. All radiograph films, of both conductor and insulation splices, shall be retained for review by the Buyer.

    7.5 Unacceptable Splices

    Any two consecutive splice procedures resulting in an unacceptable splice shall require notification of the Buyer of the splicing problem and the Vendor's proposal to eliminate the problem. Any three consecutive splice procedures

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

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    resulting in an unacceptable splice will necessitate a Buyer/Vendor meeting, the purpose of which is to review the actual splicing procedures and weld results with those procedures and descriptions agreed upon in Paragraph 7.1.5, above, and to reach resolution agreeable to the Buyer. The Vendor must obtain written approval from the Buyer prior to continuing with splicing.

    8 Cable Inspection and Testing

    8.1 General

    8.1.1 The Vendor is required to submit with his bid a list of the cable production tests and acceptance tests he will execute including tests for fiber optic cables if specified. The submittal will include the expected minimum test results. These test results will be used as one of the bases for final acceptance of the cable by the Buyer. All test results, both those specified herein and those optional tests (if any) conducted by the Vendor, shall be retained and made available to the Buyer for his inspection.

    8.1.2 The Buyer will witness all acceptance tests performed on the completed cable. The Buyer shall have the option of witnessing all factory production tests.

    8.2 Testing During Manufacture

    8.2.1 Power Cable Testing

    8.2.1.1 The power conductors of each factory length of completed core and the completed cable shall be tested in accordance with all applicable test requirements in the applicable ICEA and AEIC standards. The tests shall follow the procedures given and shall be carried out during the stage of production and at the frequency outlined in the standard.

    8.2.1.2 In addition to 8.2.1.1, at the completion of each splice between factory lengths of completed core, the power cores shall be tested for conductor resistance, insulation resistance, water penetration, and continuity of all metallic shields. The tests shall meet the requirements of applicable ICEA, CIGRE, and AEIC standards.

    8.2.2 Fiber Optic Cable Testing

    Test data shall be provided by the manufacturer for each fiber optic cable, according to 18-SAMSS-625.

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

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    8.3 Test Failures

    The buyer shall be notified whenever two consecutive tests show the cable failing to meet minimum requirements. The Vendor shall present reasons for the failure and proposals to eliminate the problem. Any three consecutive test failures will necessitate a Buyer/Vendor meeting. The Vendor must obtain written approval from the Buyer before continuing with testing.

    8.4 Certified Test Results

    Certified copies of all test results shall be submitted to the Buyer prior to shipment of cables. Shipment shall not proceed until Buyer reviews and approves the results and gives written approval for the release of the cable for shipment.

    8.5 Inspection

    Form 175-150100 provides inspection guidance.

    9 Cable Shipment

    9.1 As specified in the DATA SHEET, the submarine power cable shall be bulk-shipped from the factory by cable laying ship or ocean-going cable barge, or shipped by utilizing steel reels, drums, flat coils, or tubs.

    9.2 The minimum bending radius of the cable shall be specified by the manufacturer and maintained during handling at the plant of manufacture or loading or reeling.

    9.3 The individual phase conductors, as well as the fiber optic cable(s) (if specified), shall be sealed to prevent water ingress, and the cable end terminated in a full tension pulling device.

    9.4 Cable shipped in flat coils shall be secured to prevent movement and protected from external damage during shipment.

    9.5 Portable cable containers or cribs shall be designed to provide complete cable protection, maintaining the stated minimum bending radius, and include provisions for lifting.

    9.6 Steel reels shall be designed to withstand stresses developed during cable installation. The design of reel flanges shall be suitable for use with brake bands and the mounting of drive unit sprocket gears. The drum radius shall not be less than the minimum cable bending radius. Cable shall be securely fastened to the reel, with the drum end protected to avoid damage to the end or adjacent cable. Exposed cable shall be protected with wood lagging, treated to prevent rotting,

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    or other suitable covering. The direction in which a reel may be rolled shall be clearly marked on the flange sides.

    9.7 Cables shipped in containers or on reels shall have the following information securely fastened and plainly visible on each container or reel side:

    a) Purchaser's Order Number

    b) Destination of Shipment

    c) Complete Description of Cable

    d) Actual Shipping Length

    e) Permanent Container or Reel Number

    f) Gross weight

    g) Net Weight

    h) Maximum Cable Tension during Installation

    10 Environmental Data

    For the purpose of supplying cable and equipment to this specification, the following environmental conditions shall apply unless otherwise specified for specific locations:

    a) Location Offshore in Arabian Gulf or Red Sea

    b) Ambient Air Temperature 0C to 50C Range

    c) Humidity Range 0 to 100 %

    d) Seawater Specific Gravity At 16C - 1.033 At 35C - 1.025

    e) Seawater pH 7.7

    f) Seawater Temperature Maximum = 36C Minimum = 15.5C

    g) Seawater Viscosity At 16C = 1.102 cP

    h) Seawater Current Velocity 1.3 m/s at 0.5 m above seabed

    i) Soil Resistivity (Sea bottom) 95C-cm/watt

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    j) Soil Resistivity (Land) Actual Soil resistivity to be measured prior to order.

    k) Burial Depth 1 m (3.3 ft.)

    11 Additional Information to be Supplied By Bidder

    11.1 In addition to all other information requested by the Bidder in the text of this specification and the DATA SHEET, the Bidder is required to provide the following information at the time of bid request:

    a) Complete description of cable offered, including a dimensioned cross-sectional drawing with all components clearly identified as to material type, thickness, size, weights, tolerances, etc. Complete details of conflicts with the minimums specified in this specification and the specification of the proposed cable if the proposed cable will be manufactured to IEC specifications.

    b) Complete description of field and factory repair splices, including dimensioned cross-sectional drawings and all listings of necessary material and equipment required to perform field splices. Repair splices shall be type-tested as required by CIGRE Recommendation 171.

    c) Certified copies of all qualification tests set forth in the applicable AEIC Specification.

    d) Lead-sheathed cables shall have water-propagation tests as per CIGRE Recommendation 171. Non-lead-sheathed cable shall have water absorption tests as per AEIC/ICEA. Certified copies of all applicable test information showing degradation of proposed insulating material due to water immersion shall be provided. Information shall include AC breakdown stress, kV/mm or V/mil, vs. immersion time. A complete cable description and condition under which cable was tested shall accompany the test information. Lacking adequate test data for proposed insulating material, bidder shall provide data on that material having undergone the longest water immersion test program. Bidders having no water immersion test data shall so state, "No water immersion test data available."

    e) Information which substantiates the short-circuit capability of the metallic shield for the proposed cable.

    f) Complete description of specialized equipment necessary for off-loading cable from vessels or removing cable from containers or cribs and cost to provide such equipment.

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    g) Complete description of proper installation method including indication of the maximum allowable tension permitted during installation and indication of any specialized equipment necessary to install the cable.

    11.2 The Bidder must respond to this specification, as written, and shall provide a separate listing of all deviations to this specification; however, the Bidder is solicited to offer, in a separate document, alternative designs insofar as equal quality to this specification is maintained while accruing substantial cost savings (purchase or operating costs) to the Buyer.

    Revision Summary 29 February 2004 Revised the "Next Planned Update". Reaffirmed the contents of the document, and reissued

    with minor changes. 29 June 2005 Minor revision. 2 August 2006 Minor revision.

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    Data Sheet

    Data Sheet - Power Conductor Item To be Completed No Description Units Specified By Vendor 01 Power Conductor Size mm/kcmil _________ _______________ 02 Power Conductor Insulation - _________ _______________ Type (Either XLPE or EPR) 03 Rated Operating Voltage KV _________ _______________ 04 Max. Continuous Voltage KV _________ _______________ 05 Max. 15 min Overvoltage KV _________ _______________ 06 Frequency Hertz _________ 07 Power Requirement KVA _________ _______________ 08 Load Power Factor (lagging) - _________ 09 Cable Ampacity at 90C A _________ _______________ 10 Required Voltage Regulation % _________ 11 Design Load Factor % 100 12 System Fault Current:

    Phase to Ground A _________

    Three Phase Sym. A _________

    Duration Cycles _________ 13 Cable Operating Temperature C _______________ at Design Load 14 Min. Insulation Resistance Ohm/km _______________ 15 Max. Conductor Impedance at 60 Hertz Ohm/km _______________ 16 D.C. Resistance at 20C Ohm/km _______________ 17 Shunt Capacitance microF/km _______________ 18 Reactance at Rated Frequency Ohm/km _______________ 19 Lead Sheath 5 35 kV Cables - Yes/No _______________ 69 & 115 kV Cables Required 20 A.C. Resistance at 90C, Rated Frequency Ohm/km _______________

  • Document Responsibility: Electrical Systems Designs and Automation 15-SAMSS-503 Issue Date: 2 August 2006 Next Planned Update: 1 March 2009 Submarine Power Cable 5 kV through 115 kV

    Page 19 of 19

    Data Sheet (Cont'd)

    Item To be Completed No Description Units Specified By Vendor 21 Charging Current A/km _______________ 22 Zero Sequence Reactance at Rated Frequency Ohm/km _______________ 23 Zero Sequence Resistance at Rated Frequency Ohm/km _______________ 24 Positive-Sequence Reactance at Rated Frequency Ohm/km _______________

    Data Sheet - Overall Cable 24 Minimum Bending Radius mm _______________ 25 Ultimate Breaking Strength a) Minimum kg _______________ b) Maximum kg _______________ 26 Recommended Maximum Tensile Loading for Installation/ Recovery of Completed Cable kg _______________ 27 Minimum Design Tension kg ________ _______________ 28 Submarine Cable Weight: a) In air kg/m _______________

    b) In seawater kg/m _______________ 29 Cable Overall Diameter mm _______________ 30 Maximum Diameter Over Factory Splices mm _______________ 31 Number of Cable Segments _________ _______________ 32 Length of Each Cable Segment km _________ _______________ 33 Total Cable Length km _________ _______________ 34 Cable Shipment Type - _________ _______________ (Ship, Barge, Tub, Crib, Reel) 35 Number of multimode fibers _________ 36 Number of single-mode fibers _________