bd-spc-gen-el-0010 specification for submarine cables rev0

1、BASIC DESIGN OFBZ34-1 OIL FIELD DEVELOPMENT ADJUSTINGJOB NO. 2013BD-005ELECTRICITYPage 1 of 160ISSUED FOR APPROVAL2013.10.14(0)ISSUED FOR REVIEW2013.09.16BISSUED FOR COMMENTS2013.07.29REV.DATEDESCRIPTIONBYCH K.REV W.EXAM.APPR.CLIENTCNOOC Ltd.TianjPECIFICATION FORDESIGN CERTIF. NO .CNOOCDOCUMENT NO.R

2、EV.SUBMARINE CABLESResearchtituteA111008717 RICHTECH A231014242(CN-USP-BHB-BZ34-1)BD-SPC-GEN-EL-00100COSIGN DISCIPLINESIGNATUREDATECNOOC RIAPPROVEDSIGNATORYSIGNATUREDATEREVWEXAM.APPR.BASIC DESIGN OFBZ34-1 OIL FIELD DEVELOPMENT ADJUSTINGBD-SPC-GEN-EL-0010REV0CONTENTS1.0SCOPE32.0APPLICABLE DOCUMENTS33

3、.0REQUIREMENT44.0QUALITY ASSURANCE PROVISION145.0PREPARATION FOR SHIPPING AND STORAGE15SPECIFICATION FOR SUBMARINE CABLESPage 2 of 16BASIC DESIGN OFBZ34-1 OIL FIELD DEVELOPMENT ADJUSTINGBD-SPC-GEN-EL-0010REV01.01.1SCOPEThis specification covers the minimum requirement for the design, manufacture and

4、testing of submarine cable and their auxiliary equipment, to betalled for connectingBZ34-1 WHPD platform with BZ34-1 WHPE platform and BZ34-2/4 CEPA platform with BZ34-1 WHPF platform. Any exception to the requirements of this specification shall be submitted in writing for resolution by COMPANY.All

5、 deviations from the requirements of this specification shall be stated in the quotation. Lacking such a statement, it shall understand that all requirements of this specification fulfill without exception.The omission from this specification of any item or items essential for the correct function o

6、f any part of this specified equipment shall be brought to the attention of the COMPANY in writing. Failure to do this shall not absolve the Vendor from supplying the equipment complete in every respect.VENDOR shall complete all the details required in the submarine cable data sheet.2.02.1A

7、PPLICABLE DOCUMENTSThe design, materials and performance shall comply with requirements of the latesteditions (with amendments) of the relevant IEC codes current at the time of order placement, the following being particularly applicable.GB/T12706Power cables with extrudedulation and their accessori

8、es forrated voltages from 1 kV (Um=1.2kV) up to 35 kV (Um=40.5kV)IEC 60228IEC 60287(13) IEC 60092-351Conductors forulted cablesElectric cables-Calculation of the current ratingElectricaltallationships part 351:ulatingmaterials for shipboard and offhore units, power, control, trumentation, telecommun

9、ication and data cablesClassification of degrees of protection provided by EnclosureOptical FibersOptical Fiber CableIEC 60529IEC 60793IEC 60794IEC 60840Power cables with extrudedulation and their accessories forrated voltages above 30 kV (Um=36kV) up to 150kV (Um=170kV)-Test methods and requirement

10、s.Characteristics of a single-mode optical fibre cable.ITU-TG6522.2Manufactures unable to comply with standards identified as above paragraph may quote alternatives which are the prevailing National Standards of the country of manufacture.In view of the lack of precise international standards coveri

11、ng submarine cable and its auxiliary equipment, the vendor in the bid documents shall clearly detail the2.3SPECIFICATION FOR SUBMARINE CABLESPage 3 of 16BASIC DESIGN OFBZ34-1 OIL FIELD DEVELOPMENT ADJUSTINGBD-SPC-GEN-EL-0010REV0specifications to which the cable and its auxiliaries will be designed a

12、nd tested.In the case of conflict between this specification and any of the above codes and standards, the order of precedence shall be:2.4?Data sheetThis specification Codes and standards2.5The specification shall be used in conjunction with company document and the followingpurchaser data sheet:BD

13、-DDS-WHPE-EL-0007BD-DDS-WHPF-EL-0007Data Sheet for Submarine Compositive CableData Sheet for Submarine Compositive CableData sheet for fiber optical communication system will be issued next stage.3.03.1REQUIREMENTItem DefinitionSubmarine cable and auxiliaries include the following types of equipment

14、:?Submarine cable Junction box Cable glandsCable termination kit (including cold shrink terminator and all necessary fittings)Hang-off?Cable reel （clamp） Cable stopperCable seal cap and cable pulling head Other advice by vendorCharacteristicsContractor ResponsibilitiesThe contractor shall be

15、 responsible for the complete design, manufacture, supply,connection,pection and testing of the submarine cable and auxiliaries, including fullcompliance with all applicable design codes and standards, and those listedection 2 of this documents and the requirements of the certifying authority.Enviro

16、nmental Condition.2.1 Environmental ConditionFor the purpose of design the following environmental conditions shall be used:a.Outdoor Temperature:maximum:minimum:34.6 -17.2SPECIFICATION FOR SUBMARINE CABLESPage 4 of 16BASIC DESIGN OFBZ34-1 OIL FIELD DEVELOPMENT ADJUSTINGBD-SPC-GEN-EL-0010REV

17、0b.Relative humidity:maximum:minimum:90%24.2%c.Atmosphere:Humid, salt laden and fungous.d.Sea surface temperatureMinimum:28.5Maximum:-1.2e.Mud temperature0.5m below SeabedMinimum: Maximum:1.8 22.91m below SeabedMinimum: Maximum:3.7 21.72m below SeabedMinimum: Maximum:6.9 17.8f.g.h.J Tube ambient tem

18、perature design:4590Cable conductor temperatureWater depthMaximum:19.8m Service Conditiona. The cables will buried in trenches in the seabed at a depth stated in data sheet. Shallow seismic survey results will be available before placements of order.b.The submarine cable will be jacket struct

19、ure.Design and ConstructionGeneraltalledide a tubular steel J tube attached to thea.Submarine cable shall beulated with cross linked polyethylene (XLPE) and havethe design features listed below.The length, voltage and current rating of the cable shall be specified in data sheet.The cable sha

20、ll be a single continuous length as specified of longer. No negative tolerance on cable length is permitted. Cable shall be provided with outside markerbands on regular intervals. A red band shall be provided every 100 meters and a blue band every 1000 meters.b.c.3.3.2Submarine Cable Cable de

21、sign:a. The cable shall be designed for use on a neutral resistance grounding system. ulation shall be 100% minimum.SPECIFICATION FOR SUBMARINE CABLESPage 5 of 16BASIC DESIGN OFBZ34-1 OIL FIELD DEVELOPMENT ADJUSTINGBD-SPC-GEN-EL-0010REV0b.The cable shall operate at conductor temperatures not exceedi

22、ng those shown below. The temperature under the subheading Emergency Operation shall beapplicable for no more than 100 hours in any 12-month period and a total of 500 hours over the life of the cable.c.The size of the conductors, the nominal voltage, and the length of the cable furnished shall be as

23、 shown on the data sheet. The cable shall be manufactured in one uncut continuous length, using factory made flexible splices with the same overall diameter as the unjointed cable.The cable ends shall be sealed to prevent the entrance of water or other foreign matter before leaving the factory.Each

24、offshore platform shall be equipped with a riser or pull tube, which extends from a position above the ocean floor to the platform deck. The cable shall be routed through the riser tube, across the platform, and terminated directly below the submarine cable boxes with the power and control cables se

25、parated outside submarine cable boxes. Accessories required to support and terminate the cabled.e.shall be supplied in accordance with the Cable this specification. Embedded Fiber Cable Designtallation Accessories section ofThis specification covers the minimum technical requirements of an in

26、tegrated communication system. For the power grid data communication issues, refer to the power grid integration contractors documents.The thirty-six (36) single mode optical fibre shall be imbedded within the power cable. The optical fibre cable shall be interferenced free from the power cable. The

27、 minimum bending radius of the power cable not caused any disturbance to the optical fibre. The optical fibre cables are used to provide the communications and controltrument(voice, video and data) link between the two platforms.The construction geometrical parameter and color coating of optical fib

28、ers shall in accordance with ITU-Trec.G652 .All optical parameter are tested and reported in accordance with ITU-TRec.G650.The unit consists of appropriate number of single mode optical fibers accommodated aluminum polyethylene (LAP) inner sheath. Moreover,the unit sheathed with polyethylene is cove

29、red with a layer of lead alloy sheath and polyethylene outer sheath. The interstices in the slotted core are filled with jelly compound for moisture protection.a.Fiber optic cores shall be embedded in the interstitial spaces of the submarine power conductor cores. The fiber optic cores shall be:?36

30、cores8mm 2.5 mmicrons core diameter or manufactures standard?SPECIFICATION FOR SUBMARINE CABLESPage 6 of 16Maximum Conductor Temperatures C24 Hour Continuous DutyEmergency OperationShort Circuit90 130 250 BASIC DESIGN OFBZ34-1 OIL FIELD DEVELOPMENT ADJUSTINGBD-SPC-GEN-EL-0010REV0?1251 microns claddi

31、ng diameter Enhanced gradeSingle modeCore/cladding concentricity error:0.7 micron Core non-circularity:0.7%Cladding non-circularity:2.0%Four concentric circle values:0.8 micronChromatic dispersion within 1288-1399nm:3.5ps/nmkmAt 1550 nm:18ps/nmkmGraded index glass fiber?b.Performance?Maximum attenua

32、tion0.35dB/km for 1310 nm 0.22dB/km for 1550 nm-20 dB?Maximum Reflectancec.Standard ITU-TG652Free Hydrogen DegradationFiber optic cores shall be provided with a means of removing hydrogen and limiting flow of hydrogen through the core/cable structure. .Core ConstructionOnce cable jackets, sheaths an

33、d armor are removed, individual fiber optic cables shall meet the following:d.e.Outer jacket of tight buffered, 900 mm, mechanical strippable PEAramid or equivalent yarn strength member, capable of supporting a short term tensile load of 200 kg without stretchingCapable of bend radius under tension

34、as small as 2.2m, and minimum bending radius under no tension of 1.75m.A minimum of 20% spare cores shall be available after the above requirements are met.Capable of minimum crush resistance of 15 kg / mm2?Mica glass tape (MGT) primaryulation, EPR or XLPEulated, FireLSZH, FireResistant in accordanc

35、e with IEC 60331.Multi pair, SWB, Resistance in accordance with IEC 60331.Armour:Galvanised Steel Wire Braid (SWB)Three conductor unit strand with one optic unit filled with component?water blockSPECIFICATION FOR SUBMARINE CABLESPage 7 of 16BASIC DESIGN OFBZ34-1 OIL FIELD DEVELOPMENT ADJUSTINGBD-SPC

36、-GEN-EL-0010REV0?Double side copolymer for moisture barrier Sheathing with high density polyethylene One layer of PIP yarnCores shall be colour coded for ease of identification.f.Fiber-optic CommunicationThe fiber-optic cores shall be suitable for the communications requirements of this project.Tran

37、smit trip signals output(Trip electric load signals):end to end delay no more than 10ms.g.Technics oftallation?Jointing of coreHot jointing should be used on all of the cores connecting and the maximum attenuation of seam is 0.3 dB.Connector?The maximum attenuation of fiber optic is 1 dB. Cab

38、le Construction (power core):The preferred construction of power cable has shown as follow.Manufactures unable to comply with the following construction may quote alternatives which are proved to meet all relative requirements of this project.a. ConductorThe conductor shall be of stranded, compacted

39、 round annealed uncoated copper wires in accordance with IEC 60228 and amendments.A continuous conductor water barrier composed of semi-conducting sealing compound in the interstices of the conductor stranding shall be provided.b. Conductor ScreenA layer of semi-conducting cross-linked polyethylene

40、or ethylene propylene or ethylene propylene rubber compound shall be extruded over the conductor.c.Theulationulation shall consist of dry (gas) cured cross-linked polyethylene in accordancewith GB12706.The average and minimum thickness shall be according to GB12706. Therecommended nominalulation thi

41、ckness shall be not less than 10.5mm. And theminimumulation thickness shall be not less than 90% average value. Theulationlevel should be 100% class.d.Theulation Screenulation screen shall consist of an extruded layer of semi-conducting cross-linkedSPECIFICATION FOR SUBMARINE CABLESPage 8 of 16BASIC

42、 DESIGN OFBZ34-1 OIL FIELD DEVELOPMENT ADJUSTINGBD-SPC-GEN-EL-0010REV0polyethylene compound.The three layers of conductor screen,ulation andulation screen shall be extrudedsimultaneously and cured by dry curing method.e.Bedding for metallic tapesSemi-conducting tape(s) overlapped over the extruded a

43、pplied.ulation screen shall bef.Metallic screenA copper tape overlapped over the bedding tape(s) shall be applied to form an overall metallic screen.g. Longitudinal water sealingA semi-conducting swelling tape shall be helically applied with suitable overlap over the copper tape shielding.h. Radial

44、water barrierA layer of extruded lead sheath shall be as a radial water-proof layer.i.PE inner sheathBlack PE shall be extruded over the laminated tape (or lead sheath). The average thickness of the sheath shall be not less than that given in attached table of IEC60502.The minimum thickness at any p

45、oint shall be not less than 80% of that average thickness.j.CablingThree power cores shall be cabled together with suitable filler and bound with synthetictape(s) to form the cable core.k.Anti-corrosion oversheathThe cable core shall be covered by an anti-corrosion oversheath consisting of an extrud

46、ed layer of black polyethylene compound. The average thickness of the oversheath shall be not less than that given in attached table of IEC 60502.The minimum thickness at any point shall be no less than 80% of that average thickness.l.Bedding for Wire ArmourThe bedding for wire armour shall consist

47、of synthetic tape(s).m. Wire ArmourA single layer of closed wound galvanized steel wire armour shall be applied over the bedding layer. The armour percentage coverage will be more than 92%. The diameter of the armour wire shall be selected based on the pull tension calculation by Vendor and not less

48、 than 5.0mm.n. ServingThe serving shall consist of two layers of polypropylene yarn, and the outer surface ofSPECIFICATION FOR SUBMARINE CABLESPage 9 of 16BASIC DESIGN OFBZ34-1 OIL FIELD DEVELOPMENT ADJUSTINGBD-SPC-GEN-EL-0010REV0the cable shall be white-washed.o. Cable Length MarkersThe cable exter

49、ior shall be marked by highly visible color bands of plastic tape located at 1000, 5000 and 10,000 m intervals. One band shall be applied each 1000 m, two bands each 5000 m, and three bands each 10,000 m. The bands of tape shall be not less than 100 mm wide.p. Cable LengthThe cable shall be supplied

50、 in one continuous length. Minimum cable lengths (in meters) shall be as follows:WhereWD=water depth in meters (from seabed to jacket elevation EL. (+) 0)L = point to point distance in meters3.3.3Junction BoxThe manufacturer shall supply all junction boxes. They shall be suitable for mounting direct

51、ly to platforms. These junction boxes shall contain all holding clamps, hardware and fittings required to terminate the submarine cable and gland for the topside cables. Purchaser are to provide dimensions for the external cables. Junction boxes shall be suitable for class 1 zone 2 area. All junctio

52、n boxes shall be provided with space heaters. Heaters shall be rated for a 220V, 50Hz, 1 phase power supply and equipped with temperature controller.The junction boxes should be IP56 or NEMA 4X, 316 stainless steel enclosure.The manufacturer shall also supply four fiber optic junction boxes. The fib

53、er optic junction boxes shall be IP56, stainless steel enclosure. The fiber optic cables shall be broken out from the submarine composite cable on each of end .The loose cable end will be looped within the power cable splitter box and fed through a gland entry into the optic fiber termination box (I

54、P56 stainless steel enclosure) to be mounted on the side of splitter box.The VENDOR shall provide suitable fiber optic breakout enclosures, both for internal mounting within the CCR and for external mounting, using IP56/NEMA 4X enclosures.The fiber optic breakout enclosures shall be supplied with co

55、nnector, splice organizers and any other hardware necessary to provide cable joint capability and allow easy connection of peripheral devices.Accessories Required3.3.4SPECIFICATION FOR SUBMARINE CABLESPage 10 of 16Point to point DistanceQuantity laidPercent SparePurchased Quantity3,000L+2xWD+10010%(L+2x WD+100)x1.17,500L+2xWD+1005%(L+2x WD+100)x1.0515,000L+2xWD+1002%(L+2x WD+100)x1.02BASIC DESIGN OFBZ34-1 OIL FIELD DEVELOPMENT ADJUSTINGBD-SPC-GEN-EL-0010REV0a.Cable reelThe cable shall be supplied on a non-returnable steel cab