ducab lv cable

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1207

07 (2

000 c

ps)

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Introduction............................................................................................................................................................. .1

Customer.Service................................................................................................................................................... .2-3

Product.Range........................................................................................................................................................ .4

Specification.and.Construction........................................................................................................................... .4-5

Salient.Features.of.Ducab.Cables.Design.......................................................................................................... .6

Installation.and.Electrical.Data............................................................................................................................ .6-17

XLPE.Insulated.Cables.to.BS.5467:.Technical.Data.Tables.............................................................................. .18-32

600/000Vrated,CopperandAluminiumConductors................................................................................... 8-28

SingleCoreCables.................................................................................................................................... 8-9

TwoCoreCables........................................................................................................................................ 20-2

ThreeCoreCables..................................................................................................................................... 22-23

FourCoreCables....................................................................................................................................... 24-25

FourCoreCableswithReducedNeutralConductors............................................................................... 26-27

ThreeandFourCoreArmouredCables.................................................................................................... 28

900/3300Vrated,ArmouredCopperConductors......................................................................................... 29

XLPEinsulatedLeadSheathedArmouredCablestoBS5467..................................................................... 30-32

Advantages.of.XLPE.Insulated.Cables................................................................................................................ .33

LSF.Cables.............................................................................................................................................................. .33-34

XLPE.Cable.Voltage.Drop.Data.for.partial.loads............................................................................................... .34-35

Components.Reference.Chart.............................................................................................................................. .36

DucabislistedinthefollowingpublicationissuedbytheDepartmentofTradeandIndustryoftheUnitedKingdom.

THE.DTI.QA.REGISTER.-.PRODUCTS.AND.SERVICES.LIST

OnlythosecompanieswhosequalitysystemisassessedandcertifiedbyU.K.accreditedcertificationbodiesappearintheabovepublication.

C O N T E N T SPage

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I N T R O D U C T I O N

Ducab-DubaiCableCompany(Pvt)Ltd,istheleadingmanufacturerofelectriccablesintheMiddleEastEstablished

in979,thecompanyisownedbytheGovernmentsofDubaiandAbuDhabi.DucabisbasedinJebelAli,buttomeetthe

continuingdemandandkeeppacewiththesteadygrowthoftheregion,DucabcompletedasecondfactoryinAbuDhabi

in2005.ThisstateoftheartfacilitydoublestheproductioncapacityenablingDucabtobetterserviceitscustomers.

ThiscatalogueprovidesworkinginformationonDucabscompleterangeofXLPEPowerCablesratedupto3.3kVand

alsoincludesdataoncomponents.SeparatecataloguesareavailableforDucabsrangeofWiringCables,LowVoltage

ControlandAuxilaryCables,LeadSheathedCables, -LSFWiresandCables,

MediumVoltageCables, MediumVoltageCables forOil,Gas andPetrochemical Industries and

DrumHandling&InstallationofCables.

Due to thewide rangeof cables in thecatalogue, it isadvisable,whenordering, toprovideasmuch informationas

possible.Pleaseusethefollowingtableasaguide:

O R D E R I N g A D v I C E

Thefollowingdetailswillensurethatyourenquiriesandordersaredealtwithquicklyandefficiently:

. Lengthofcablesrequiredandindividualdrumlengths.*2. Voltagedesignation.

3. RelevantBritishorInternationalStandard.

4. Numberofcores.

5. Conductorsizeand,whereapplicable,sizeofreducedneutralconductor.

6. Conductormateriali.e.copper,aluminium.

7. Typeofinsulation.

8. Typeofbedding.

9. Typeofarmour.

0. Typeofoutersheath.

. Any other special requirement, e.g. circular conductors, special PVC sheath material, drum weightlimitation,etc.

*Cablesarenormallysuppliedinlengthsof300metres,500metresand000metresdependingonconductorsize.Otherlengthscanbesuppliedifrequired.

T E C h N I C A l A D v I S O R y S E R v I C E

Specialist advice and assistance on allmatters concerningPVCandXLPE insulated power cablesis available fromTechnicalDepartment,DubaiCableCompany(Private)Limited,P.O.Box529,Dubai,U.A.E.,Tel:97-4-8082500,Fax:97-4-80825.

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C U S T O m E R S E R v I C E

Ducab is the premier cable manufacturer in the United Arab Emirates and, since 979, has been meeting the

requirements of customers throughout the Middle and Far East. Ducabs cables are used by some of the most

demandingutilitiesintheworld,forthefollowingreasons:

PRODUCT.QUALITy

Ducabiscommittedtosupplyingitscustomerswiththehighestqualityofproductandofservice.DucabsPowercables

havebeentypeapprovedbyLloydsRegisteroftheUKandhaveundergonerigoroustypetestingbyBASEC(British

ApprovalsService forCables).They fullyconformtoBS6004andBS5467specifications for

PVCandXLPE insulatedcables respectively, forelectricitysupply,up toand including3.3kV

ratings.

Inaddition,DucabwaspresentedwiththeDubaiQualityAward994,forthebestlocalindustrial

companyoftheyear.Fouryearslater,DucabwaspresentedwiththeDubaiQualityAward98

GoldCategory.TheGoldAwardrewardsthemostdistinguishedcompanieswhicharejudgedto

beworldclass.

RELIABILITy

Specifyingtherightcableforaparticularapplicationisthefirststep.Thekeytoreliabilityhowever,isinthemanufacturing

process.Thecablemustbe free frommaterialandmanufacturingdefects,andweaknesses thatwill be revealed in

service.

Ducabconstantlymonitors itsmanufacturingprocessesandoperatesstringentqualityassuranceprocedures togive

longtermreliability.Thisisofvitalsignificancewherecablesaretobeinstalledinlocationswherefutureaccesswould

bedifficultandthisiswhereDucabsreputationandtheresourcesgivepeaceofmind.

PERFORmANCE

OptimumcableperformancecanbeprovidedonlybyacompanysuchasDucab,withaccesstothelatestdevelopments

inmaterialstechnology.Inaddition,DucabsknowledgeofapplicationrequirementsthroughouttheMiddleandFarEast

isanassuranceofhighperformance.

Whererequired,Ducabcanincorporatespecialfeatures,forexampletogivethecablelowsmokeandfume(LSF)or

reducedflamepropagationcharacteristics,ortoresistabrasionandimpacts.

OurexperiencedTechnicalStaffcanprovideguidanceoncableselectionandinstallationandcanensurethatyouget

therightcableforthejob.

SAFETy

Ducab is able tomaintain a closewatch onworld developments in cable technology and regulations and therefore

ensurethatitsproductsaredesignedandconstructedtobehazard-freeundertheprescribedconditionsofuse.

Ducab uses only tried and testedmaterials and processes in full compliance with all relevant

BritishandInternationalStandards.Ourcablesarethereforemanufacturedforsafeusewithout

risk to health on the understanding that users will exercise the same degree of care in their

selectionandapplication.

Safety is an important issue for Ducab, and the strictest standards are adhered to throughout the

company.Ducab isproudof its safety recordandhasbeenawardedRoSPA (RoyalSociety for the

PreventionofAccidents)GoldAwards forsafety from99 to999.From2000onward,Ducabwas

awarded theprestigiousPresidentsAward forHealthandSafetywhich isa recognitionofDucabwinning0consecutive

annualGoldawardsandacknowledgesDucabstotalcommitmenttohealthandsafety.In2002,Ducabwasdeclaredthejoint

winneroftheManufacturingIndustrySectorAwardfromRoSPA.

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Ducab is the first organisation in theMiddle East to receive accreditation toOHSAS 800 by the BASEC (British

ApprovalsServiceforCables).CertificationtoOHSAS800providesarecognisableOccupationalHealthandSafety

Managementstandardagainstwhichanorganisationsmanagementsystemscanbeassessedandcertified.Basedon

thestructureofISO400,thestandardrequirescontinualimprovementinhealthandsafetyrelatedactivities.

QUALITy.mANAGEmENT.SySTEm.CERTIFIED.TO.ISO.9001

Ducabs Quality Management System conforms to the ISO 900:994 International Quality System Standard and

is certified byBASEC (BritishApprovalsService forCables)who are an internationally recognised quality authority

accreditedintheUKandthroughouttheworld.

Certification to the ISO 900 International standard demonstrates that Ducab has drawn

upwrittenprocedures toensure fullcompliancewithall requirementsof thestandardand

that these procedures are followed by every department in the company, thus ensuring

that goods leaving Ducabs factory are of the highest quality andmeet each customers

requirementsineveryrespect.

DucabisparticularlyproudtohaveachievedcertificationtothestringentISO900:994standardasitisanindependent

conformationthatthecompanydesigns,manufacturesandtestscablesconsistentlytoacceptedstandards.ISO900

iswidelyusedthroughoutEurope,andisthereforeareassurancetoDucabscustomersthattheproductsandservice

suppliedbythecompanyareequaltothebestintheworld.

ENVIRONmENTAL.mANAGEmENT.SySTEm.CERTIFIED.TO.ISO.14001

DucabsEnvironmentalManagementSystemconformstotheISO400:2004InternationalEnvironmentalManagement

StandardandiscertifiedbyBASECwhoareaninternationallyrecognisedcertifyingauthorityaccreditedintheUKand

throughoutEurope.

Certification to the ISO 400:2004 International standard shows that Ducab has a well

defined structure and established working practices aimed at limiting its impact on the

environment.Measurementandmonitoringofeffects,issuingworkinstructions,trainingof

personnelandtakingcorrectiveactionsareallessentialelementstolimitingtheimpacton

theenvironment.Ducabhassetimprovementtargetstoreducethesignificantenvironmental

impactsassociatedwithitsactivities.

DucabisproudtobethefirstcablemanufacturerintheregiontoachievecertificationtoISO400andthiscertification

alongwithitsquality,businesssuccessandsafetyrecorddemonstratesthatDucabisaworldclassorganisationand

canholditsheaduptoanybusinesscommunitythroughouttheworld.

...................BASEC.CERTIFICATION

Ducab is also proud to hold a Product Marketing Licence issued by BASEC

(BritishApprovalsServiceforCables)forseveralcablesinitsproductrange.

........................DUCAB.SHAREEk

Ducabscustomersatisfactionprogramme, TheValueEdge isdesignedtoensurethat

customersreceiveaconsistentlyhighlevelofservicefromDucabsdedicatedstaff.

LICENSE NUMBER - 083

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P R O D U C T R A N g E

Voltage.range:0.6/kVand.9/3.3kV

CABLE.TyPES.)Armoured/unarmouredXLPEinsulatedcables2)Leadsheathedcables3)CopperorAluminiumPEtape(withdrainwire)shielded

CABLE.SIzESSinglecoreuptoandincluding000mm22coreuptoandincluding300mm2

3coreuptoandincluding400mm24coreuptoandincluding500mm2

5coreuptoandincluding95mm2

SPECIFICATIONBS5467............................forXLPEinsulatedarmouredcablesBS7889............................forXLPEinsulatedsinglecoreunarmouredcablesIEC60502(Part)..........forXLPEinsulatedsingle/multicorearmoured/unarmouredcablesAnyotherInternationalSpecificationasperVDE/DIN,GOSTandaspercustomer'sspecifications.

S P E C I f I C AT I O N A N D C O N S T R U C T I O N

CONDUCTORSItisthecurrentcarryingcomponentofthecable.

materialPlain,stranded,compactedcopperasperBS6360/IEC:60228Aluminium,stranded,compactedconductors

INSULATIONTheratedvoltagelevelofthecabledependsonthedielectricstrengthandthicknessoftheinsulation.

material.Cross-linkedpolyethylene(XLPE)TypeGP8asperBS7655:Section.3.

Colour.masterbatchUltra-violet(UV)resistantpolyethylenemasterbatchisusedforcolouringofinsulation.Thisprotectstheinsulationfromdeteriorationwhenexposedtocontinuoussunlight.

CORE.IDENTIFICATION.Coreidentificationisbycolourasfollows(unlessotherwiseagreed):

No..of.cores. Core.Colours RedorBlack 2 RedandBlack 3 Red,YellowandBlue 4 Red,Yellow,BlueandBlack 5 Red,Yellow,Blue,BlackandGreen/Yellow

*Cables to new colour scheme of BS 5467 eg. Blue, Brown, Black, Grey could also be supplied on special request

FILLERSForprovidingcircularshapetothecable,non-hygroscopiccompatiblefillers(wherevernecessary)areincludedbetweenlaidupcores.

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m E T A l l I C S C R E E N

Ifrequiredbythecustomerscreeningmaybeprovidedforelectricalshielding.

materialCoppertape/Copperlaminate/AluminiumlaminateAluminiumPEtapealongwithtinnedcopperdrainwire(forprovidingscreencontinuity).

Note:Specialconstructionsotherthanstatedabovemaybeprovidedonrequest.

B A R R I E R T A P EmaterialPolypropylene/PETPtapeisusedasabarriertapeoverthelaidupcores.

FunctionsHoldsthecorestogetherandpreventsthemfromopeningout.Worksasaseparatorbetweendifferentpolymersusedinacable.

B E D D I N g

Extrudedbeddingservesasabeddingforthearmourandasaprotectionforthelaid-upcores.

materialExtrudedPVCType9CompoundasperBS7655.

Reducedpropagationflameretardant(RPLHCL)/RPPVCCompoundforreducedflamepropagationcharacteristics.

SmokemasterLowsmokeandfumeforinstallationswherefirehazardsexist.

A R m O U R

Armourprovidesmechanicalprotectiontothecable.ItalsoservesasanEarthContinuityConductor(ECC).

Onelayerofroundwireisappliedhelicallyoverthebedding.

materialGalvanisedroundsteelwire(GSW).Galvanisedroundsteelwire(GSW)along.with.tinned.copper.wires.(TCW).for.maintaining.specified.conductivity.of.armour.(if.required.by.the.customer).Aluminiumroundwirearmour(AWA)isgenerallyusedforsinglecoreaccircuitsasaluminiumisanon-magneticmaterialandthiswillreducelossesduetoarmour.

Note:Aluminiumglandsshouldbeusedinconjunctionwithcableshavingaluminiumwirearmour.

Ov E R S h E AT h - f I N I S h

Followingtypesofmaterialsmaybespecifiedforoversheathing.

General.Purpose:ExtrudedPVCType9CompoundasperBS7655. medium.Density.Polythylene.(mDPE):Offershigherprotectionfromwateringressandmechanicalabrasion. Anti. Termite: Termite resistance can be built in both types described above by compounding with proper

additives.

Reduced.Propagation.(RP): Retards propagation of flame in fire situation. (Oxygen Index 30) Reduced.Propagation.and.Low.Acid.Fumes.(RPLHCL):Retardspropagationofflamesandgiveslowemission

ofhydrochloricacidfumes.(OI 30 & acid gas emission is less than 18%)

Smokemaster.Low.Smoke.&.Fume.(LSF):SmokemastercablesareidealforinstallationswherethedenseblacksmokegeneratedbyPVCcablesinafireareadangertopeople.SmokemasterischaracterisedbythefeaturesasOxygen Index greater than 35, acid-gas liberation almost nil (

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SAlIENT fEATURES Of DUCAB CABlE DESIgN

(1). XLPE.insulation.Ultra-violet.(UV).colour.masterbatch

Ultra-violet(UV)resistantpolyethylenemasterbatchisusedforcolouringofinsulation.Thisprotectstheinsulation

fromdeteriorationwhenexposedtocontinuoussunlight.

(2).. Polypropylene/PETP.tape.over.the.laid.up.cores

Actsasaseparatorbetweendifferentpolymersusedinacable.

(3).. Fillers

For ensuring proper circular shape to the cable, non-hygroscopic compatible fillers (wherever necessary) are

includedbetweenlaidupcores.

(4).. Special.requirements

Ducabcablescanbecustomdesignedtoincorporatespecialrequirementsoftheclientasfollows:

(a) Screening:CoppertapeorAluminiumPEtape(alongwithtinnedcopperdrainwire)canbeusedfor

shieldingpurposes.

(b) Tinnedcopperwirecanbeusedalongwithgalvanisedroundsteelwirestomaintainspecifiedarmour

conductivityrequirements.

(c) Reducedpropagatingflameretardantbedding(RPLHCL/RP)andoutersheathmaterialcanbeofferedto

meetreducedflamepropagationcharacteristicsandlowhydrogenacidgasemission.

(d) CablewithbeddingandoutersheathmaterialofspecialLSF(lowsmokeandfume)compoundcanbe

offeredforinstallationswherefireanditsassociatedproblems-theemissionofsmokeandtoxicfumes-

offeraseriouspotentialthreat.(FordetailsonLSFcablesreferpage33-34)

(e) Inwaterloggedareasorwherethecablesarerequiredtobeabrasionresistant,cablewithmediumdensity

polyethylene(MDPE)canbeoffered.

(f) Forprotectionfrominsects,anti-termiteprotectioncanbeaddedtotheoutersheath.

(5). Fire.test.requirement

CablessheathedwithgeneralpurposePVCType9meetfiretestrequirementofIEC60332-.Cableswith

varyingfireperformancerequirementsaremanufacturedbyDucab.Thedetailsonthisareprovidedonrequest.

I N S TA l l AT I O N

Whicheverformofconductorisused,XLPEinsulatedcablesaresimpletohandle,installandjoint.Allthecables

describedinthispublicationcanbeusedindoorsoroutdoors,butsomereservationsarenecessaryconcerning

cablesfordirectburialinthegroundorforuseinsustainedwetconditionsasfollows:

(i) Unarmouredcablesarenotgenerallyrecommendedforlayingdirectlyintheground.

(ii) Cableslaiddirectlyintheground,particularlyinsustainedwetconditions,shouldhaveextrudedbedding

andpreferablyMDPE-MediumDensityPolyethylene-astheoutersheathmaterial.

Otherimportantfactorstobetakenintoaccountare:

SHEATH.DAmAGE

Careshouldbetakentoensurethattheoversheathisnotdamagedduringinstallation.Thisisespeciallyimportantwhere

aluminiumwirearmourisused,asingressofmoisturecouldleadtocorrosionorultimatelossofearthcontinuity.

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Type.of.Cable Overall.Diameter.(D) minimum.internal.radius.of.bend

Circular.copper.conductors.armoured.or.unarmoured

Any 6D

Shaped. copper. or. aluminium. conductors,.armoured.or.unarmoured

For.lead.sheathed.cables

Any

Any

8D

2D

CONNECTORS

The use of compression type connectors is recommended for XLPE insulated cables since the use of soldered

connectors would limit the maximum short circuit temperature of the cable to 160C (and consequently reduce the final

short circuit current by approximately 30%).

OVERHEAD.TERmINATIONS

Ultra violet resistant sleeving or taping should be provided on XLPE insulated cores to avoid degradation due to

exposuretosolarrays.

ARmOURED.SINGLE.CORE.CABLES.FOR.AC.OPERATION

Thecurrentratingprovidedforsinglecorecablesisbasedonarmourbonded/earthedatbothends.Armourbonding

atbothendsresultsincirculatingcurrentinthearmour.

Higher current ratingmay be achieved in case the armour is bonded / earthed at single end. However single end

bondingresultsinaninducedvoltageattheunearthedendofthearmour.Themagnitudeofinducedvoltageisdirectly

proportional to thecurrent through theconductorand lengthof thecable.At times themagitudeof inducedvoltage

couldposepotentialriskifnolimitingdeviceisconnectedattheopenend.Forthispurposesheathvoltagelimitersare

inuse.

Ducabstronglyrecommendsuseofaninsulatedadopterinthecablegland,whileterminatingsinglecorecablesforAC

operation.

SinglecorecablesforACoperationshouldnotpassthroughsteelconduitorsteelglandplate,asitproducesaheating

effect.

C A B l E S U P P O R T S PA C I N g

AsperIEEWiringRegulationswherethecableisnotcontinuouslysupporteditshallbesupportedbysuitablemeansat

appropriateintervalsinsuchamannerthatthecabledoesnotsufferdamagebyitsownweight.

Table.1

mINImUm.INSTALLATION.RADIUS

Cableshouldnotbebentduringinstallationtoaradiussmallerthanthatrecommendedbelow.Whereverpossiblelarger

installationradiishouldbeused.

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C U R R E N T R A T I N g S

CurrentratingsforXLPEinsulatedcablesfor groundand duct installationarederivedfromthe latest issueofERA

Report69-30Part5whichisbaseduponIECPublication60287.TheratingsforInAirinstallationaretakenfromIEE

WiringRegulations.

Alltheratingsgivenareforsinglecircuitsinstalledthermallyindependentofothercircuitsoranyotherheatsourceand

onthebasisofthestandardconditionsofinstallationgiveninrelevantTablesbetween7to33.Forotherambientor

groundtemperatures,depthoflaying,soilthermalresistivity,theratingmustbemultipliedbyrelevantratingfactorsin

Tables2to6and8to2.

ItshouldbenotedthatifXLPEinsulatedcables,aresubjectedtooperatingtemperaturesappreciablyhigherthanthe

90C permissible for continuous operation, the insulation will undergo premature ageing thus affecting the normal life

of the cable. However, limiting maximum conductor temperature to 105C during overloads with duration not exceeding

4hoursonanyoneoccasion,oramaximumof00hoursinany2consecutivemonths,oratotalof500hoursinthe

cableslifetime,wouldbetenable.

IEE.WIRING.REGULATIONS.-.REQUIREmENT.FOR.CABLESTheIEEWiringRegulations for installationandselectionofcablescannotbeapproached in isolation fromtheother

equipment in the installation. In particular the devices providing protection against overload, short circuit, shock by

indirectcontactandover-heatingofprotectiveconductorsduringanearthfault,affecttheselectionofcables.

CROSS.SECTIONAL.AREAS.OF.PROTECTIVE.CONDUCTORS.(Clause.543.of.the.16th.Edition.of.IEE.Wiring.Regulations)

Regulation543explainshowthecrosssectionalareaofthecircuitprotectiveconductorshouldbecalculatedtoavoid

itover-heatingduringafault toearth.Againthearearequireddependsonthecharacteristicsofthedeviceproviding

protectionagainstshortcircuit.

ThesteelwirearmourofstandardcablestoBS5467(XLPE)andBS6346(PVC)providestherequiredarea,ormore,

whentheprotectivedeviceisoneofthestandardfusesorMCBswitharatingnothigherthanthecurrentratingofthe

cable(assumingdisconnectionwithin5seconds).

Forthemostofthecablesthearmourisstilladequatewhenthefuseratingisoneortwosteps,orevenmore,above

thecurrentratingofthecable,themarginsbeinggreaterforthesmallsizesand4corecablesthanforthelargersizes

andtwocorecables.

v O lT A g E D R O P

Voltagedropisnormallyonlyof importanceforcablesofvoltagerating600/000Vorbelow.Iftheinstallationistobe

incompliancewithRegulation 525 of the 6thEdition of the IEEWiringRegulations, it is stipulated that the voltage

dropwithintheinstallationdoesnotexceedavalueappropriatetothesafefunctioningoftheassociatedequipmentin

normalservice.Therequirementisdeemedtobesatisfiedifthedropinvoltagefromtheoriginoftheinstallation(usually

supplyterminals)andthefixedcurrentusingequipmentdoesnotexceed4percentofthenominalvoltageofthesupply,

disregardingstartingconditions.

(Note:Diversitycanbetakenintoaccountwhencalculatingvoltagedrop).

Sincetheactualpowerfactoroftheloadisoftennotknown,themostpracticalapproachtothequestionofvoltagedrop

istoassumetheworstconditionsi.e.wherethephaseangleoftheloadisequaltothatofthecable.Thevoltagedrop

valuesinthetableshavebeenbasedonthisassumption.Forconductorsizesuptoandincluding20mm2thefigures

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providedapplywithsufficientaccuracywhere thepower factor liesbetween0.6 laggingand.0,and for largecables

wherethepowerfactoroftheloaddoesnotexceed0.8lagging.Wherethephaseanglesoftheloadsfalloutsidethis

range, thevoltagedropdeduced from the tablesmaybeundulyconservativeandmoreexactmethodsofcalculation

shouldbeemployed.

Thevaluesofvoltagedropfor600/000Vratedcablesaregiveninthecurrentratingtables.

In thosecaseswhere theactualcurrentdiffersgreatly fromthe tabulatedcurrent rating, theresultsobtained fromthe

tablesareonlyapproximate;foramoreaccurateassessment,allowanceshouldbemadeforthechangeinconductor

resistancewithoperatingtemperature.Refertopage35andTable3fordetails.Itshouldalsobeensuredthatthecable

sizeultimatelyselectediscapableofcarryingtherequiredcurrentunderthesiteconditionsofinstallation.

Valuesofvoltagedroparetabulatedforacurrentofoneampereforametrerun,i.e.foradistanceofmetrealongthe

routetakenbythecables,andrepresenttheeffectofthevoltagedropinallthecircuitconductors.Forbalancedthree

phaseaccircuits,thevaluesrelatetothelinevoltage.Foranygivenrunthevaluesneedtobemultipliedbythelength

oftherun(inmetres)andbythecurrent(inamperes)thatthecablesaretocarry.

Examples:Considerarouteof200metresof4Corearmouredcabletobeinstalledinairandtocarry00amperesload

perphase,withthesupplyvoltagebeing45volts,threephase50HzandthecabletobeCopperXLPE/SWA/PVC.

Using.the.Tables:

LetVdbethevoltagedropinvolts.

whereI=CurrentinamperesL=RoutelengthinmetresmV=Approximatevoltdrop/ampere/metre

Assumemaximumpermissiblevoltdrop=4percentof45volts=6.6volts

Substituteforcurrent,routelengthandmaximumpermissiblevoltdrop

then

SelectacablefromtherelevantCurrentRatingTable26suchthatthemVvaluefromthevoltagedropcolumnisequal

toorlessthanthe0.83mVcalculated,ensuringthatitwillcarrythecurrent.Itwillbeseenthatthisvalueis0.6givinga

cablesizeof70mm2. However, 100 Amp load could be less than 80% current carrying capacity of 50mm2cable,inwhich

caseof50mm2cablewillsuffice.

Note:Pleaserefertopages28and35foradditionalinformationonvoltagedrop.

Vd = mVxIxL000

mV = Vdx000IxLor

mV= 6.6x000200x00

=0.83

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RATING.FACTORS.FOR.GROUND.TEmPERATURE

RATING.FACTORS.FOR.VARIATION.IN.THERmAL.RESISTIVITy.OF.SOIL.(AVERAGE.VALUES)

Ground.temperature 15C 20C 25C 30C 35C 40C 45C

XLPE.Insulated .0 0.97 0.93 0.89 0.86 0.82 0.76

Cable.Type Rating.factor

Size.of.cablesmm2

Up.to.150

From.185.to.300

From.400.to.1000

Up.to.16

From.25.to.150

From.185.to.500

.6

.7

.7

.2

.2

.2

.07

.07

.07

0.9

0.9

0.9

0.8

0.80

0.80

0.73

0.73

0.73

0.66

0.66

0.66

.2

.4

.5

.08

.0

.0

.05

.06

.07

0.93

0.92

0.92

0.84

0.82

0.8

0.77

0.75

0.74

0.72

0.69

0.67

Soil thermal resistivity in C m/W

0.8 0.9 1.0 1.5 2.0 2.5 3.0

R A T I N g f A C T O R S

Wheretheconditionsofinstallationdifferfromthosedefinedinthecurrentratingtables,thefollowingratingfactorsmay

beusedforcablessizeselection.(ReferenceERAreport)

C A B l E S l A I D D I R E C T ly I N g R O U N D

Ratingsforcablesinstalleddirectly inthegroundarebasedonvaluesofsoil temperatureandsoil thermalresistivity

which are generally representative of conditions in theUnited Kingdom.Rating factors to take account of variation

in ground temperatures are given in Table 2.Where conditions of operation can be fairly accurately estimated and

knowledgeofthesoilalongtherouteisavailable,itispossibletodeterminetheratingsmorepreciselybytheuseofthe

soilthermalresistivityfactors,groupingfactors,andfactorsforthedepthsoflayinggiveninTables3to6.

Table.3

Table.2

multicore.cables

Single.core.cables

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0.50

0.60

0.80

1.00

1.25

1.50

1.75

2.00

2.50

3.00.or.more

RATING.FACTORS.FOR.DEPTH.OF.LAyING.(TO.CENTRE.OF.CABLE.OR.TREFOIL.GROUP.OF.CABLES)

GROUP.RATING.FACTORS.FOR.CIRCUITS.OF.THREE.SINGLE.CORE.CABLES.IN.TREFOIL.OR.LAID.FLAT.TOUCHING,.IN.HORIzONTAL.FORmATION

Depth.of.laying

m

.00

0.99

0.97

0.95

0.94

0.93

0.92

0.9

0.90

0.89

.00

0.98

0.96

0.93

0.92

0.90

0.89

0.88

0.87

0.85

.00

0.97

0.94

0.92

0.89

0.87

0.86

0.85

0.84

0.82

-

-

.00

0.98

0.96

0.95

0.94

0.92

0.9

0.90

-

-

.00

0.97

0.95

0.93

0.9

0.89

0.88

0.86

Up.to.50mm2

600/1000.Volt 1900/3300.Volt

70mm2

to.300mm2Above.300mm2 Up.to.300mm2 Above.300mm2

Number.of.Circuits

600/1000Volt.cables

1900/3300Volt.cables

2

3

4

5

6

0.78

0.66

0.6

0.56

0.53

0.78

0.66

0.59

0.55

0.52

0.80

0.68

0.62

0.58

0.55

0.82

0.7

0.65

0.6

0.58

0.86

0.77

0.72

0.68

0.66

0.89

0.80

0.77

0.74

0.72

0.9

0.83

0.80

0.78

0.76

0.8

0.70

0.64

0.60

0.57

0.83

0.73

0.68

0.64

0.6

0.88

0.79

0.73

0.73

0.7

0.9

0.84

0.8

0.79

0.78

0.93

0.87

0.85

0.85

0.82

2

3

4

5

6

Spacing.of.Circuits

Touching**Trefoil Laid.flat 0.15.m* 0.30.m 0.45.m 0.60.m

*Thisspacingwillnotbepossibleforsomeofthelargerdiametercables.**Forhighcurrentcarryingcables(i.e. largesize) it isadvisabletoallowspacingbetweencircuits.Alternativelythe

mostappropriategroupratingfactormustbeappliedwhendeterminingthecablesizeandrequirednumberofcablesinparallel.

SPACINGSPACING

Table.5

Table.4

BICC2

SPACING

GROUP.RATING.FACTORS.FOR.mULTICORE.CABLES.IN.HORIzONTAL.FORmATION

RECOmmENDED.DUCT.DImENSIONS.AND.CABLE.SIzES

Number.of.Cables.in.Group

Overall.cable.diameter

mm

Up.to.and.including.65

Above.65.up.to.and.including.90

00

25

30

60

Inside.diametermm

Outside.diametermm

Spacing

Duct

Touching* 0.15.m 0.30.m 0.45.m 0.60.m

600/1000volt.cables

1900/3000

volt.cables

2

3

4

5

6

0.8

0.70

0.63

0.59

0.55

0.87

0.78

0.74

0.70

0.68

0.9

0.84

0.8

0.78

0.77

0.93

0.88

0.86

0.84

0.83

0.95

0.90

0.89

0.87

0.87

2

3

4

5

6

0.80

0.68

0.62

0.57

0.54

0.85

0.76

0.7

0.66

0.64

0.89

0.8

0.77

0.73

0.7

0.9

0.84

0.8

0.78

0.77

0.93

0.87

0.84

0.82

0.8

*Forhighcurrent carryingcables (i.e. largesize) it isadvisable toallowspacingbetweencircuits.Alternatively themostappropriategroupratingfactormustbeappliedwhendeterminingthecablesizeandrequirednumberofcables

inparallel.

C A B l E S I N S T A l l E D I N D U C T SThetermductsappliestosinglewayearthenware,fibreorferrouspipes.

Ratings for cables installed in singleway ducts, underground, have been based on values of soil temperature and

soil thermal resistivitywhicharegenerally representativeofconditions in theUnitedKingdom.Rating factors to take

accountofvariationsingroundtemperaturesaregiveninTable2.Whereconditionsofoperationcanbefairlyaccurately

estimated,andknowledgeofthesoilalongtherouteisavailable,itispossibletodeterminetheratingsmoreprecisely

bytheuseofestimatedmaximumgroundtemperature,thesoilthermalresistivityfactors,groupingfactors,andfactors

forthedepthsoflayinggiveninTables8to.

RATING.FACTORS.FOR.GROUND.TEmPERATURE

Note:Sameasfordirectinground,refertoTable2.

Table.7

Table.6

3BICC

RATING.FACTORS.OF.VARIATION.IN.THERmAL.RESISTIVITy.OF.SOIL.(AVERAGE.VALUES)

Size.of.cablemm2

Up.to.150From.185.to.300From.400.to.1000

Up.to.16From.25.to.150From.185.to.500

Soil thermal resistivity in C m/W

0.8

.0..2

.04.06.07

.07.08.08

.03.04.05

.04.05.05

.02.03.03

0.940.930.93

0.970.950.95

0.860.850.84

0.920.900.88

0.800.790.78

0.880.850.83

0.760.750.74

0.860.80.78

0.9 1.0 1.5 2.0 2.5 3.0

RATING.FACTORS.OF.DEPTH.OF.LAyING.(TO.CENTRE.OF.DUCT.OR.TREFOIL.GROUP.OF.DUCTS)

Depth.in.laying

m0.50

0.60

0.80

1.00

1.25

1.50

1.75

2.00

2.50

3.00.or.more

.00

0.98

0.95

0.93

0.9

0.89

0.88

0.87

0.86

0.85

.00

0.99

0.98

0.96

0.95

0.94

0.94

0.93

0.92

0.9

-

-

.00

0.98

0.95

0.93

0.92

0.90

0.89

0.88

-

-

.00

0.99

0.97

0.96

0.95

0.94

0.93

0.92

600/1000.Volt 1900/3300.Volt

Single.Core multicore Single.Core multicore

GROUP.RATING.FACTORS.FOR.SINGLE.CORE.CABLES.IN.TREFOIL.SINGLE.WAy.DUCTS,.HORIzONTAL.FORmATION.(AVERAGE.VALUES)

Number.of.Circuits

600/1000Volt.Cables

1900/3300Volt.Cables

2

3

4

5

6

0.87

0.78

0.74

0.70

0.69

0.85

0.75

0.70

0.67

0.64

0.88

0.80

0.77

0.74

0.72

0.90

0.83

0.80

0.78

0.76

0.9

0.84

0.8

0.79

0.78

0.93

0.87

0.85

0.83

0.82

2

3

4

5

6

SpacingTouching* 0.45.m 0.60.m

SPACING

*Forhighcurrentcarryingcables(i.e.largesize)itisadvisabletoallowspacingbetweencircuits.Alternativelythemostappropriategroupratingfactormustbeappliedwhendeterminingthecablesizeandrequirednumberofcablesinparallel.

Table.10

Table.9

Table.8

Single.Core.Cable

multicore.Cables

BICC4

GROUP.RATING.FACTORS.FOR.mULTICORE.CABLES.IN.SINGLE.WAy.DUCTS,.HORIzONTAL.FORmATION.(AVERAGE.VALUES)

RATING.FACTORS.FOR.OTHER.AmBIENT.AIR.TEmPERATURES

Number.of.Ductsin.Ground

Spacing

Touching* 0.30.m 0.45.m 0.60.m

600/1000volt.cables

1900/3000volt.cables

2

3

4

5

6

0.90

0.83

0.79

0.75

0.73

0.88

0.80

0.76

0.72

0.69

0.9

0.85

0.8

0.78

0.76

0.93

0.88

0.85

0.83

0.8

0.94

0.90

0.88

0.86

0.85

0.93

0.88

0.85

0.83

0.82

0.95

0.9

0.89

0.88

0.87

0.96

0.93

0.92

0.9

0.90

2

3

4

5

6

*.Forhighcurrentcarryingcables(i.e.largesize)itisadvisabletoallowspacingbetweencircuits.Alternativelythemostappropriategroupratingfactormustbeappliedwhendeterminingthecablesizeandrequirednumberofcablesinparallel.

C A B l E S I N S TA l l E D I N A I R

Itisanticipatedthatmanyoftheinairinstallationswillbeinbuildings,andtheratingsarethereforegiveninaccordance

withIEEWiringRegulationsforElectricalInstallations,6thEdition.

It.should.be.noted.that.all.ratings.for.cables.run.in.free.air.have.been.based.on.the.assumption.that.they.are.shielded.from.the.direct.rays.of.the.sun.without.restriction.of.ventilation..The.rating.for.cables.subjected.to.direct.sunlight.should.be.reduced.to. take.account.of. this. factor.and.further.guidance.on.this.subject.is.available.on.request..

DEFINED.CONDITIONS.OF.INSTALLATION

Thein-aircurrentratingsgiveninrelevantTablesbetween8to34arebasedontheinstallationconditionsinairasfollows:

(a).. Single.core.cables

()Twosinglecorecablesareinstalledoneabovetheother,fixedtotheverticalsurfaceofawalloropencabletrench,thedistancebetweenthewallandthesurfaceofthecablebeingnotlessthan20mm.

Cables are installed at a distance between centres of twice the overall diameter of the cable, i.e. 2D, whereD=overalldiameterofcable.

(2)Threesinglecorecablesareinstalledintrefoilformation,fixedtotheverticalsurfaceofawalloropencabletrench, thecablestouchingthroughoutandthedistancebetweenthewallandthesurfaceof thenearestcablebeingnotlessthan20mm.Thecablesareassumedtoberemotefromiron,steelorferro-concrete,otherthanthecablesupports.Singlecorearmouredcablestobeelectricallybondedateachendoftherun.

SPACING

Air.Temperature

XLPE.Insulated

25C

.02 .0 0.96 0.9 0.87 0.82 0.76

30C 35C 40C 45C 50C 55C

Table.11

Table.12

5BICC

Aluminium.Conductors

The values of fault current given in the graph arebasedonthecablebeingfullyloadedatthestartoftheshort circuit (conductor temperature 90C) and a final conductor temperature of 250 C. It should be ensured thattheaccessoriesassociatedwiththecablesarealsocapableofoperationatthesevaluesoffaultcurrentandtemperature.

Note: With XLPE cables the use of soldered typeconnectors (instead of the compression type) is notrecommendedsincetheiruseinthesystemwouldlimitthefinal conductor temperature to 160 C (and consequently reduce the faultcurrent ratingbyapproximately30percent).

Note:Foranyotherdurationtsecondsdividethegivenvalueby t

DURATION.OF.SHORT.CIRCUT.IN.SECONDS

FAULT

.CURRENT.kILOAmPERES

0. 0.2 0.3 0.4 0.5 0.6 0.7 .0 2.0 3.0

25mm2

6mm2

35mm2

50mm2

70mm2

95mm220mm2

50mm285mm2240mm2300mm2

DURATION.OF.SHORT.CIRCUT.IN.SECONDS

FAULT

.CURRENT.kILOAmPERES

2

3

4

56789

0

20

30

40

506070809000

(b).. multicore.Cables

Cablesofalltypesotherthansinglecorecablesareinstalledsingly,fixedtotheverticalsurfaceofawalloropencable trench, the distance between the surface of the cable and thewall being not less than 20mm in everyinstance.

Ifitisnecessaryforcablestobeinstalledatdistanceslessthanthosedescribedabove,thenthevaluestabulatedundertheheadingClippeddirecttoasurface...intheIEEWiringRegulationsshouldbeemployed.

Copper.ConductorsTable.13

S h O R T C I R C U I T R AT I N g S C O N D U C T O R S

Conductor.size....Short.circuit.ratings.for.1.second.in.kA

. .mm2.. Copper.. ..Aluminium

. . Conductor... Conductor

1.5 0.2 0.4

2.5 0.36 0.24

4 0.57 0.38

. 6 0.86 0.56

10 .43 0.94

16 2.29 .50

25 3.58 2.35

35 5.00 3.29

50 7.5 4.70

. 70 0.0 6.58

95 3.59 8.93

120 7.6 .28

150 2.45 4.0

. 185 26.46 7.39

. 240 34.32 22.56

300 42.90 28.20

400 57.20 37.60

630 90.09 59.22

. 800 4.40 75.20

1000 43.00 94.00

BICC6

S h O R T C I R C U I T R AT I N g S A R m O U R

XLPE.INSULATED.CABLES

ARmOUR.FAULT.CURRENTS.TO.EARTH.(FOR.A.FAULT.DURATION.OF.1.SECOND)

NominalArea.of

Conductor

mm2

Aluminium.Wire.Armour Steel.Wire.Armour

600/1000.V 1900/3300.V600/1000.V

Single.Core

amp

Single.Core

amp

Two.Core

amp

Three.Core

amp

Four.Core

amp

Four.Core(reduced.neutral)amp

Three.Core

amp

XLPE

-

-

-

4000* 4700* 5200* 5700* 6400

700

7900

8800

2400

3800

5400

2300

23400

XLPE

-

-

-

4700* 5200* 5700* 600

6400

700

7800

8500

2000

3300

4900

-

-

XLPE

800

900

2800

300

3600

500

-

-

-

-

-

-

-

-

-

-

XLPE

2000

2800

3200

3500

400

5800

6400

9200

000

500

2300

-

-

-

-

-

XLPE

2200

3200

3600

400

6000

6700

9400

0500

700

3200

4600

20700

22500

-

-

-

XLPE

-

3200

3400

3900

5900

6600

7500

0000

500

2800

3900

20700

22500

-

-

-

XLPE

3700

4200

4700

5600

6200

6900

9400

000

0800

900

3000

-

-

-

-

-

1900/3300.V

*.BasedonwirediameterslargerthanthosespecifiedinBS5467.RefertoTable6,32and34forsinglecorecablearmourwirediameter

Notes: .TheratingsgivenintheTableabovearebasedonafaultdurationofonesecondandanarmourtemperature

rise from 80C at commencement of the fault to a final temperature of 200C.

2. The asymmetrical fault rating of the smaller sizesmay be decided by the short circuit capability of the

conductorratherthanthearmourrating.Itisthereforenecessarytocomparethetworatings.

Table.14

. 16

. 25

. 35

. 50

. 70

. 95

. 120

. 150

. 185

. 240

. 300

. 400

. 500

. 630

. 800

.1000

7BICC

- - -

0.75

0.67

0.6

0.42

0.39

0.37

0.34

0.3

0.22

0.20

0.8

0.3

0.2

With.strand

ed.

copper.

cond

uctor

600/1000

.V

Max

imum

res

ista

nce

of

Cab

le -

Arm

our

in o

hms/

km a

t 20

C

Nominal.Area

of.Conductor

mm

2

.16

.25

.35

.50

.70

.95

.120

.150

.185

.24

0

.30

0

.40

0

.50

0

.63

0

.80

0

.1000

.5

0.72

7

0.52

4

0.38

7

0.26

8

0.9

3

0.5

3

0.24

0.09

9

0.07

54

0.06

0

0.04

70

0.03

66

0.02

83

0.02

2

0.076

.90

.20

0

0.86

8

0.64

0.44

3

0.32

0

0.25

3

0.20

6

0.6

4

0.2

5

0.0

0

0.07

78

0.06

05

0.04

69

0.03

67

0.02

9

- - -

.30

0.75

0.67

0.6

0.42

0.38

0.34

0.3

0.22

0.20

0.8

0.3

0.2

3.70

3.70

2.60

2.30

2.00

.40

.30

.20

0.82

0.73

0.67

0.59 - - - -

3.50

2.50

2.30

2.00

.80

.30

.20

0.78

0.7

0.63

0.58

0.52 - - - -

.90

.70

.80

.30

.20

.0

0.76

0.7

0.65

0.59

0.55

0.50 - - - -

3.0

2.30

2.00

.80

.20

.0

0.76

0.68

0.6

0.54

0.49

0.35 - - - -

-

2.30

2.0

.90

.30

.0

0.96

0.7

0.63

0.56

0.52

0.46 - - - -

Copper.Conductor.*

Aluminium

Conductor

Single.Core

600/

1000

.V

600/

1000

.V60

0/1000

.V

600/

1000.V

1900

/33

00.V

Three.Core

Two.core

Four.Core

**(equa

l.ne

utral)

Four.Core

(red

uced

.ne

utral)

With.strand

edalum

inium.

cond

uctor.

600/1000

.V

Aluminium.wire.armou

rWith

.stran

ded.co

pper.con

ductor.&.Galvanise

d.Stee

l.Wire

.Arm

our

CO

ND

UC

TO

R /

AR

mO

UR

RE

SIS

TA

NC

E A

ND

RE

AC

TA

NC

E v

Al

UE

S

SINGLE

.AND.m

ULTICORE.CABLE

S.HAVING.W

IRE.ARmOUR

*The

value

sgive

nareforplainan

nealed

cop

perco

nduc

tors.F

ortinn

edcon

ductorsreferenc

esh

ouldbemad

etoBS636

0.**M

ulticoreca

bles

with

stran

dedAluminiumcon

ductorhavesa

meArm

ourresistan

cesas

thos

ewith

Cop

perco

nduc

tors.

- - -

0.0

6

0.0

3

0.09

8

0.09

6

0.09

7

0.09

6

0.09

2

0.09

0.09

0.08

9

0.08

6

0.08

3

0.08

Single

core.cab

leTw

oco

re.cab

le

0.08

0.07

9

0.07

7

0.07

6

0.07

5

0.07

3

0.07

2

0.07

3

0.07

3

0.07

2

0.07

2

0.07 - - - -

Three.&.Fou

rco

re.cab

le

Indu

ctive.reac

tanc

e.(app

rox).per.core.of..

3.ph

ase.circuite.in

.ohm

/[email protected]

0.08

0.07

9

0.07

7

0.07

6

0.07

5

0.07

3

0.07

2

0.07

3

0.07

3

0.07

2

0.07

2

0.07

2

-

-

-

-

Table.15

600/1000

.V

BICC8

Table.16

X l P E I N S U l A T E D C A B l E S T O B S 5 4 6 7 & I E C - 6 0 5 0 2 - 1

DImENSIONS.AND.WEIGHTS

STRANDED.COPPER.&.ALUmINIUm.CONDUCTORS..SINGLE.CORE.CABLES

*UNARmOURED.AND.ARmOURED,.PVC.SHEATHED.CABLES

Nominal

area.of

conductor

mm2

50

70

95

120

150

185

240

300

400

500

630

800

1000

.0

.

.

.2

.4

.6

.7

.8

2.0

2.2

2.4

2.6

2.8

4.2

6.2

8.3

20.2

22.4

24.7

27.7

30.6

34.2

38.0

42.9

47.8

53.0

250

330

430

50

630

760

970

90

500

900

2420

320

3780

540

760

020

270

560

930

250

320

3970

4980

6400

820

0275

2.6

4.5

6.4

8.0

9.8

22.0

24.6

27.3

3.2

36.0

40.0

45.8

50.8

.6***.6***.6***.6***.6

.6

.6

.6

2.0

2.0

2.0

2.5

2.5

8.4

20.2

22.3

24.2

27.4

30.0

32.8

35.6

40.5

44.2

48.8

55.4

60.6

460

560

690

800

970

50

380

640

230

260

380

4230

5000

800

990

280

550

900

2320

2930

3580

4600

5680

760

935

490

Thickness

of

insulation

mm

Cable

diameter

overall

mm

Cable

weight

Aluminium

kg/km

Cable

weight

Copper

kg/km

Diameter

under

armour

mm

Armour**wire

diameter

mm

Cable

diameter

overall

mm

Cable

weight

Aluminium

kg/km

Cable

weight

Copper

kg/km

Unarmoured.Cables.

(approximate.values)Armoured.Cables.(approximate.values)

* SinglecoreunarmouredcablesareasperBS7889.** AluminiumwirearmourforACsystem.*** WirediametersarelargerthanthosespecifiedinBS5467.****CableswithStrandedAluminiumConductorsconformtoIEC60502-

600/1000.V

9BICC

ARmOURED.PVC.SHEATHED.CABLES

UNARmOURED.PVC.SHEATHED.CABLES

Table.17

Stranded.Aluminium.Conductors

50

70

95

120

150

185

240

300

400

500

630

800

1000

235

290

345

390

435

490

560

630

700

770

840

888

942

235

280

330

370

405

440

500

550

580

620

670

692

735

222

285

346

402

463

529

625

720

85

98

027

9

24

0.87

0.62

0.47

0.39

0.33

0.28

0.24

0.2

0.20

0.8

0.7

0.7

0.6

0.93

0.70

0.56

0.48

0.43

0.39

0.35

0.32

0.30

0.28

0.26

0.25

0.24

0.87

0.62

0.47

0.39

0.33

0.28

0.24

0.2

0.20

0.8

0.7

0.7

0.6

75

220

260

295

330

375

435

490

540

580

630

-

-

80

220

260

295

330

365

40

455

480

50

540

-

-

62

207

252

292

337

39

465

540

625

74

80

-

-

.40

0.98

0.72

0.58

0.48

0.39

0.3

0.27

0.35

0.3

0.28

-

-

.60

.00

0.79

0.66

0.57

0.49

0.42

0.38

0.38

0.35

0.32

-

-

.40

0.98

0.74

0.60

0.49

0.4

0.34

0.29

0.25

0.22

0.20

-

-

C U R R E N T R A T I N g S ( A C )

Stranded.Copper.ConductorsNominal.

area.of

conductor

mm2Direct.in

ground

amps

Installedin.airamps

Ground

mV

Duct

mV

Air

mV

Direct.in

ground

amps

In.single

way.

ducts

amps

Installedin.airamps

Ground

mV

Duct

mV

Air

mV

Current.Ratings Current.RatingsApproximate.voltage.drop.

per.ampere.per.metreApproximate.voltage.drop.per.

ampere.per.metre

Installation.conditions.for.above.ratings:Ambient air temperature:30CGround temperature: 15CDepth of laying:0.5 m, Soil thermal resistivity: 1.2C m/WMaximumconductoroperatingtemperatureatratedcurrent is 90C, For rating factors see Tables 2 to 6 and 8 to 12

.Aluminium.Conductors

50

70

95

120

150

185

240

300

400

500

630

800

1000

230

285

335

385

435

490

570

650

740

840

960

20

300

240

295

345

395

445

500

580

650

750

850

960

30

320

209

270

330

385

445

5

606

70

820

936

069

24

349

0.85

0.6

0.45

0.36

0.3

0.26

0.22

0.9

0.7

0.6

0.5

0.5

0.4

0.93

0.70

0.56

0.48

0.43

0.39

0.35

0.32

0.30

0.28

0.26

0.25

0.24

0.87

0.6

0.45

0.37

0.3

0.26

0.22

0.20

0.8

0.6

0.5

0.5

0.4

75

25

255

295

325

370

430

490

550

620

690

-

-

80

220

260

300

335

375

440

50

570

640

730

-

-

59

206

253

296

343

395

47

544

638

743

849

-

-

.40

0.98

0.7

0.57

0.47

0.39

0.3

0.26

0.36

0.33

0.28

-

-

.50

.0

0.79

0.66

0.57

0.49

0.42

0.38

0.38

0.35

0.32

-

-

.45

0.98

0.73

0.59

0.47

0.39

0.32

0.27

0.23

0.20

0.9

-

-

Stranded.Copper.Conductors

Nominal.

area.of

conductor

mm2

Direct.in

ground

amps

Installedin.airamps

Ground

mV

Duct

mV

Air

mV

Direct.in

ground

amps

In.single

way.

ducts

amps

Installedin.airamps

Ground

mV

Duct

mV

Air

mV

Current.Ratings Current.RatingsApproximate.voltage.drop.per.ampere.per.metre

Approximate.voltage.drop.

per.ampere.per.metre

STRANDED.COPPER.&.ALUmINIUm.CONDUCTORS..SINGLE.CORE.CABLES

3D 3D

3D3D

In.single

way.

ducts

amps

In.single

way.

ducts

amps

Table.18

600/1000.V

600/1000.V

Directinground-TrefoiltouchingSinglewayducts-ductstouchingSpacinginair-Asshownabove(D=Cablediameter)Nonmagneticwirearmourbondedatbothends

BICC20

UNARmOURED.AND.ARmOURED,.PVC.SHEATHED.CABLES Table.19600/1000.V


Nominal

area.of

conductor

mm2

16*25*35*50

70

95

120

150

185

240

300

0.7

0.9

0.9

.0

.

.

.2

.4

.6

.7

.8

7.0

20.2

22.5

20.4

23.

26.5

28.4

3.7

35.

40.3

44.3

-

45

480

497

690

850

70

450

80

2280

2760

475

740

955

00

520

2050

260

3220

4030

5200

6430

5.2

8.5

2.5

8.7

2.5

24.6

26.8

29.7

33.3

38.

42.3

.25

.25

.60

.60

.60

2.00

2.00

2.00

2.50

2.50

2.50

20.4

24.

27.7

25.8

29.0

33.

36.

39.3

44.7

49.0

53.5

-

95

255

430

780

950

2440

3050

3690

4380

500

900

240

70

800

2320

350

3880

4820

5920

7300

8770

Thickness

of

insulation

mm

Cable

diameter

overall

mm

Cable

weight

Aluminium

kg/km

Cable

weight

Copper

kg/km

Diameter

under

armour

mm

Armour

wire

diameter

mm

Cable

diameter

overall

mm

Cable

weight

Aluminium

kg/km

Cable

weight

Copper

kg/km

Unarmoured.Cables.

(approximate.values)Armoured.Cables.(approximate.values)

STRANDED.COPPER.&.ALUmINIUm.CONDUCTORS.TWO.CORE.CABLES

*Circularconductor,allothersaresectorshaped.

Note:Unarmouredcables&cableswithStrandedAluminiumConductorsconformtoIEC60502-Part


2BICC

In.singleway.ductsamps

In.single

way.

ducts

amps

Aluminium.Conductors.

16*25*35*50

70

95

120

150

185

240

300

40

80

25

255

35

38

40

472

539

632

708

5

45

75

20

260

33

344

384

432

504

560

5

52

88

228

29

354

430

480

540

636

732

2.9

.9

.3

.0

0.7

0.5

0.4

0.4

0.3

0.2

0.2

2.9

.9

.3

.0

0.7

0.5

0.4

0.4

0.3

0.2

0.2

2.9

.9

.3

.0

0.7

0.5

0.4

0.4

0.3

0.2

0.2

-

35

65

95

240

288

-

-

-

-

-

-

0

30

55

95

237

-

-

-

-

-

-

2

38

66

2

254

-

-

-

-

-

-

3.

2.2

.7

.

0.8

-

-

-

-

-

-

3.

2.2

.7

.

0.8

-

-

-

-

-

-

3.

2.2

.7

.

0.8

-

-

-

-

-



Nominal.

area.of

conductor

mm2

Direct.in

ground

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV

Direct.in

ground

amps

In.single

way.

ducts

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV





.Aluminium.Conductors

16*25*35*50

70

95

120

150

185

240

300

40

80

25

255

35

380

40

473

542

64

74

5

40

70

205

255

3

344

384

432

504

560

5

49

85

225

289

352

430

480

540

650

750

2.9

.9

.3

.0

0.7

0.5

0.4

0.4

0.3

0.2

0.2

2.9

.9

.3

.0

0.7

0.5

0.4

0.4

0.3

0.2

0.2

2.9

.9

.3

.0

0.7

0.5

0.4

0.4

0.3

0.2

0.2

-

35

65

95

240

285

-

-

-

-

-

-

05

30

50

95

235

-

-

-

-

-

-

08

35

64

2

257

-

-

-

-

-

-

3.

2.2

.7

.2

0.8

-

-

-

-

-

-

3.

2.2

.7

.2

0.8

-

-

-

-

-

-

3.

2.2

.7

.2

0.8

-

-

-

-

-


Nominal.

area.of

conductor

mm2

Direct.in

ground

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV

Direct.in

ground

amps


Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV





STRANDED.COPPER.&.ALUmINIUm.CONDUCTORS..TWO.CORE.CABLES



Installation.conditions.for.above.ratings:Ambient air temperature:30CGround temperature: 15CDepthoflaying:0.5mSoil thermal resistivity: 1.2C m/WMaximum conductor operating temperature at rated current is 90CForratingfactorsseeTables2to6and8to2

*Circularconductor,allothersaresectorshaped

Table.20600/1000.V

600/1000.V Table.21

Directinground-CablestouchingSinglewayducts-ductstouching*Circularconductors,allothersaresectorshapedNote:()50mm2andabovearewithD-shapedconductor (2)UnarmouredcablesareasperIEC:60502(part)

BICC22


Nominal

area.of

conductor

mm2

16*25*35*50

70

95

120

150

185

240

300

400

0.7

0.9

0.9

.0

.

.

.2

.4

.6

.7

.8

2.0

8.0

2.5

24.0

24.6

28.0

3.0

34.8

38.5

44.0

49.5

53.5

59.2

-

500

60

740

050

70

440

2300

2750

3020

3660

3730

675

990

295

640

2220

2980

3730

595

6470

8380

0420

575

6.0

20.0

22.7

23.0

26.0

30.0

32.8

36.8

4.5

46.0

5.5

56.4

.25

.6

.6

.6

.6

2.0

2.0

2.5

2.5

2.5

2.5

2.5

2.6

26.7

29.4

28.5

32.2

37.0

40.4

45.5

49.8

55.

60.2

66.6

-

220

45

550

80

2500

2870

3660

4320

570

600

7050

30

70

200

2450

320

430

560

760

8600

0755

3080

580

Thickness

of

insulation

mm

Cable

diameter

overall

mm

Cable

weight

Aluminium

kg/km

Cable

weight

Copper

kg/km

Diameter

under

armour

mm

Armour

wire

diameter

mm

Cable

diameter

overall

mm

Cable

weight

Aluminium

kg/km

Cable

weight

Copper

kg/km

Unarmoured.Cables.(approximate.values) Armoured.Cables.(approximate.values)

STRANDED.COPPER.&.ALUmINIUm.CONDUCTORSTHREE.CORE.CABLES

UNARmOURED.AND.ARmOURED,.PVC.SHEATHED.CABLES

*Circularconductors,allothersaresectorshaped.

Note:Unarmouredcables&cableswithStrandedAluminiumConductorsconformtoIEC60502(Part)

Table.22600/1000.V


23BICC

C U R R E N T R AT I N g S ( A C )

. Stranded.Aluminium.Conductors.

16

25

35

50

70

95

120

150

185

240

300

400

5

50

80

25

265

35

360

405

460

530

590

667

94

25

50

75

25

260

300

335

380

440

495

570

99

3

62

97

25

304

353

406

463

546

628

728

2.5

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

2.5

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

2.5

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

89

5

35

65

200

240

275

30

350

40

460

520

72

94

0

35

65

200

230

255

295

340

385

443

74

98

20

45

85

224

264

305

350

48

488

562

4.2

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

4.2

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

4.2

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2


Direct.in

ground

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV

Direct.in

ground

amps

In.single

way.ducts

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV


per.ampere.per.metreApproximate.voltage.drop.


Installation.conditions.for.above.ratings:Ambient air temperature:30CGroundtemperature:5C,Depthoflaying:0.5mSoil thermal resistivity: 1.2C m/WMaximum conductor operating temperature at rated current is 90CForratingfactorsseeTables2to6and8to2

Stranded.Copper.Conductors Stranded.Aluminium.Conductors

16

25

35

50

70

95

120

150

185

240

300

400

20

45

80

25

265

35

365

405

465

540

600

675

93

25

45

75

25

255

300

330

380

440

500

575

00

27

58

92

246

298

346

399

456

538

62

74

2.5

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

2.5

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

2.5

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

-

5

35

65

200

240

275

30

350

45

465

523

-

92

0

35

65

95

225

255

290

340

385

443

-

97

20

46

87

227

263

304

347

409

47

570

-

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

-

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

-

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

Nominal.

area.of

conductor

mm2

Direct.in

ground

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV

Direct.in

ground

amps

In.single

way.ducts

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV

Current.RatingsCurrent.Ratings





STRANDED.COPPER.&.ALUmINIUm.CONDUCTORSTHREE.CORE.CABLES



In.single

way.ducts

amps

In.single

way.ducts

amps

Nominal.

area.of

conductor

mm2

Table.23600/1000.V

600/1000.V Table.24

Directinground-CablestouchingSinglewayducts-ductstouchingNote:UnarmouredcablesareasperIEC60502(Part)

BICC24


Nominal

area.of

conductor

mm2

16*25

35

50

70

95

120

150

185

240

300

400

500**

0.7

0.9

0.9

.0

.

.

.2

.4

.6

.7

.8

2.0

2.2

20.0

2.0

24.5

26.5

3.0

35.2

39.0

43.5

49.0

54.5

6.0

67.5

74.2

-

520

650

900

20

550

90

240

2990

3890

4730

5780

7500

780

60

540

200

2950

3970

4960

660

7690

0070

2490

5620

9900

8.0

20.0

22.8

25.5

29.5

33.5

37.5

4.5

46.0

52.5

57.5

65.0

72.6

.25

.6

.6

.6

2.0

2.0

2.5

2.5

2.5

2.5

2.5

3.5

3.5

23.4

26.

28.6

32.0

37.7

4.7

47.

5.4

56.6

63.0

68.8

78.

82.0

-

200

420

770

2500

2980

3950

4600

5430

6660

7770

0380

2200

320

840

230

2970

4240

5400

7000

8350

030

2840

5530

9950

24360

Thickness

of

insulation

mm

Cable

diameter

overall

mm

Cable

weight

Aluminium

kg/km

Cable

weight

Copper

kg/km

Diameter

under

armour

mm

Armour

wire

diameter

mm

Cable

diameter

overall

mm

Cable

weight

Aluminium

kg/km

Cable

weight

Copper

kg/km


STRANDED.COPPER.&.ALUmINIUm.CONDUCTORSFOUR.CORE.CABLES

*Circularconductors,allothersaresectorshaped.** CableasperIEC60502(Part)Note:Unarmouredcables&cableswithStrandedAluminiumConductorsconformtoIEC60502(Part)

UNARmOURED.AND.ARmOURED,.PVC.SHEATHED.CABLES600/1000.V Table.25


25BICC

ARmOURED.PVC.SHEATHED.CABLES Table.26600/1000.V

Installation.conditions.for.above.ratings:Ambient air temperature: 30C, Ground temperature: 15C, Depth of laying: 0.5 m, Soil thermal resistivity: 1.2C m/WMaximum conductor operating temperature at rated current is 90CForratingfactorsseeTables2to6and8to2

Stranded.Copper.Conductors .Aluminium.Conductors

16

25

35

50

70

95

120

150

185

240

300

400

500

20

45

80

25

265

35

365

405

465

540

600

675

730

93

25

45

75

25

255

300

330

380

440

500

575

60

00

27

58

92

246

298

346

399

456

538

62

74

84

2.5

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

0.2

2.5

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

0.2

2.5

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

0.2

89

5

35

65

200

240

275

30

350

45

465

523

565

72

92

0

35

65

95

225

255

290

340

385

443

470

74

97

20

46

87

227

263

304

347

409

47

570

626

4.2

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

0.2

4.2

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

0.2

4.2

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

0.2


Nominal.

area.of

conductor

mm2

Direct.in

ground

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV

Direct.in

ground

amps

In.single

way.ducts

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV





Stranded.Aluminium.Conductors.

16

25

35

50

70

95

120

150

185

240

300

400

500

5

50

80

25

265

35

360

405

460

530

590

667

720

94

25

50

75

25

260

300

335

380

440

495

570

605

99

3

62

97

25

304

353

406

463

546

628

728

800

2.5

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

0.2

2.5

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

0.2

2.5

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

0.2

89

5

35

65

200

240

275

30

350

40

460

520

56

72

94

0

35

65

200

230

255

295

340

385

443

470

74

98

20

45

85

224

264

305

350

48

488

562

68

4.2

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

0.2

4.2

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

0.2

4.2

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

0.2


Nominal.

area.of

conductor

mm2

Direct.in

ground

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV

Direct.in

ground

amps

In.single

way.ducts

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV





STRANDED.COPPER.&.ALUmINIUm.CONDUCTORSFOUR.CORE.CABLES

In.single

way.ducts

amps

600/1000.V Table.27


Directinground-CablestouchingSinglewayducts-ductstouchingNote:UnarmouredcablesareasperIEC60502(Part)


BICC26


UNARmOURED.AND.ARmOURED,.PVC.SHEATHED.CABLES

Nominal

area.of

conductor

mm2

Nominal

area.of

neutral

conductor

mm2

25

35

50

70

95

120

150

185

240

300

400

500**

6*6*25*35*50

70

70*95

20*50*85*240*

0.9

0.9

.0

.

.

.2

.4

.6

.7

.8

2.0

2.2

2.4

23.2

26.

30.4

34.8

39.4

42.5

47.7

53.4

59.0

67.0

74.0

-

-

860

080

390

820

290

2630

3500

4240

5560

6700

070

360

920

260

3500

4540

5440

6760

8900

000

3900

7560

9.

22.0

24.5

28.5

32.0

35.5

39.5

43.5

50.2

55.0

62.5

68.8

.6

.6

.6

2.0

2.0

2.0

2.5

2.5

2.5

2.5

3.5

3.5

26.

27.9

3.2

36.6

4.0

45.3

50.0

55.3

6.

66.7

73.8

83.9

-

-

70

2340

2800

3340

4360

5020

6220

7220

9950

200

750

230

2770

3870

490

6060

760

950

620

3980

8250

22000

Thickness

of

insulation

(phase)

mm

Cable

diameter

overall

mm

Cable

weight

Aluminium

kg/km

Cable

weight

Copper

kg/km

Diameter

under

armour

mm

Armour

wire

diameter

mm

Cable

diameter

overall

mm

Cable

weight

Aluminium

kg/km

Cable

weight

Copper

kg/km


STRANDED.COPPER.&.ALUmINIUm.CONDUCTORS.FOUR.CORE.CABLES.WITH.REDUCED.NEUTRAL.CONDUCTOR

*Circularstrandedconductors,allothersaresectorshaped.** CableasperIEC60502(Part)

Note:Unarmouredcables&cableswithStrandedAluminiumConductorsconformtoIEC60502(Part)

Table.28600/1000.V


27BICC


Nominal.

area.of

conductor

mm2

Nominal.

area.of

neutral

conductor

mm2

Direct.in

ground

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV

Direct.in

ground

amps

In.single

way.ducts

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV


per.ampere.per.metreApproximate.voltage.drop.


Nominal.

area.of

Conductor

mm2

Installation.conditions.for.above.ratings:Ambient air temperature: 30CGround temperature: 15CDepthoflaying:0.5mSoil thermal resistivity: 1.2C m/WMaximum conductor operating temperature at rated current is 90CForratingfactorsseeTables2to6and8to2


Stranded.Copper.Conductors Stranded.Aluminium.Conductors.

25

35

50

70

95

120

150

185

240

300

400

500

6*6*25*35*50

70

70*95

20*50*85*240*

45

80

25

265

35

365

405

465

540

600

675

730

25

45

75

25

255

300

330

380

440

500

575

60

27

58

92

246

298

346

399

456

538

62

74

84

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

0.2

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

0.2

.7

.2

0.9

0.6

0.5

0.4

0.3

0.3

0.2

0.2

0.2

0.2

5

35

65

200

240

275

30

350

45

465

523

565

92

0

35

65

95

225

255

290

340

385

443

470

97

20

46

87

227

263

304

347

409

47

570

626

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

0.2

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

0.2

2.7

.9

.4

.0

0.7

0.6

0.5

0.4

0.3

0.3

0.2

0.2

Nominal.

area.of

neutral

conductor

mm2

Direct.in

ground

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV

Direct.in

ground

amps

In.single

way.ducts

amps

Installed

in.air

amps

Ground

mV

Duct

mV

Air

mV



Approximate.voltage.drop..


STRANDED.COPPER.&.ALUmINIUm.CONDUCTORSFOUR.CORE.CABLES.WITH.REDUCED.NEUTRAL.CONDUCTOR

Stranded.Copper.Conductors Stranded.Aluminium.Conductors.

*Circularconductors,allothersaresectorshaped.



25

35

50

70

95

120

150

185

240

300

400

500

6*6*25*35*507070*9520*50*85*240*

50802526535360405460530590667720

25507525260300335380440495570605

3629725304353406463546628728800

.7.20.90.60.50.40.30.30.20.20.20.2

.7.20.90.60.50.40.30.30.20.20.20.2

.7.20.90.60.50.40.30.30.20.20.20.2

53565200240275303504046052056

9403565200230255295340385443470

982045852242643053504848856268

2.7.9.4.00.70.60.50.40.30.30.20.2

2.7.9.4.00.70.60.50.40.30.30.20.2

2.7.9.4.00.70.60.50.40.30.30.20.2

Table.29600/1000.V

C U R R E N T R AT I N g S ( A C )

600/1000.V Table.30

Directinground-CablestouchingSinglewayducts-ductstouching*Circularconductors,allothersaresectorshapedNote:.UnarmouredcablesareasperIEC60502(Part)

BICC28

Voltagedrop

mV/A/m

CURRENT.RATINGS.(AC).AND.VOLT.DROPS

STRANDED.COPPER.CONDUCTORS

....THREE.AND.FOUR.CORE.ARmOURED,.PVC.SHEATHED.CABLES

Installation.conditions.for.above.ratings:Ambient temperature: 30CGround Temperature: 15C

Soil Thermal resistivity: 1.2Cm/WDepthoflaying:0.5m

265

260

250

245

235

225

25

205

95

70

25

240

230

220

20

95

85

70

50

0.607

0.599

0.589

0.580

0.572

0.562

0.554

0.545

0.536

150

406

395

375

365

345

325

305

280

250

0.303

0.299

0.295

0.292

0.288

0.284

0.280

0.277

0.273

405

395

385

370

360

345

330

35

295

35

305

300

290

280

270

255

245

230

95

304

295

290

270

255

240

225

20

90

0.446

0.439

0.433

0.427

0.42

0.45

0.408

0.402

0.396

120

353

340

325

30

300

280

260

240

25

0.366

0.357

0.352

0.347

0.342

0.337

0.333

0.328

0.323

360

350

340

330

320

305

295

280

260

Currentin.ground.

A

Voltagedrop

mV/A/m

Currentin.airA

Conductorsizemm2

185

463

450

430

45

395

370

345

320

290

0.255

0.252

0.249

0.246

0.243

0.240

0.237

0.235

0.232

460

450

435

420

405

390

375

355

335

400

728

75

685

655

620

585

545

500

450

0.66

0.63

0.62

0.6

0.60

0.59

0.58

0.57

0.56

667

640

620

600

580

560

535

505

475

240

546

530

50

490

465

440

40

375

340

0.2

0.208

0.206

0.204

0.203

0.200

0.99

0.97

0.95

530

55

500

485

470

450

430

40

385

300

628

605

580

555

530

500

465

430

390

0.85

0.83

0.8

0.80

0.79

0.77

0.76

0.74

0.74

590

575

560

540

520

500

480

455

430

Conductorsizemm2

Currentin.airA

Currentin.ground

A

X l P E I N S U l AT E D C A B l E S T O B S 5 4 6 7

600/1000.V Table.31

99

97

93

89

84

80

74

68

62

16

5

2

0

05

00

97

94

89

84

2.50

2.50

2.47

2.43

2.39

2.35

2.3

2.27

2.23

Currentin.ground

A

Voltagedrop

mV/A/m

Currentin.airA

Conductorsizemm2

25

20

200

95

90

85

75

65

55

0.865

0.852

0.839

0.826

0.83

0.800

0.787

0.774

0.76

97

90

80

75

65

55

45

35

20

50

50

45

40

35

30

25

20

5

0

25

3

30

25

20

0

05

99

9

82

.65

.59

.56

.54

.5

.49

.46

.44

.4

80

75

70

65

60

50

45

40

30

35

62

55

50

45

35

30

20

0

00

.5

.5

.3

.

.09

.08

.06

.04

.02

29BICC

ARmOURED.PVC.SHEATHED.CABLES1900/3300.V


Stranded.Copper.Conductors.-.Single.core.cables Stranded.Copper.Conductors.-.Three.core.cables

Approximate.Values

Nominal

area.of

conductor

mm2

Thickness

of.

insulation

mm

Thickness

of.

insulation

mm

Diameter

under

armour

mm

Diameter

under

armour

mm

Armour**wire

diameter

mm

Armour

wire

diameter

mm

Cable

diameter

overall

mm

Cable

diameter

overall

mm

Cable.

weight

copper

kg/km

Cable.

weight

copper

kg/km

Nominal

area.of.

conductor

mm2

Approximate.Values

CURRENT.RATINGS

Stranded.Copper.Conductors.-.Single.core.cables Stranded.Copper.Conductors.-.Three.core.cables

Nominal

area.of

conductor

mm2

Nominal

area.of

conductor

mm2

Direct.in

ground

amps

Direct.in

ground

amps

In.single

way.ducts

amps

In.single

way.ducts

amps

Installed.in

air

amps

Installed.in

air

amps

50

70

95

120

150

185

240

300

400

500

630

800

1000

222

27

324

366

409

460

528

589

65

720

789

83

880

29

264

30

342

376

44

464

506

535

579

624

650

689

228

285

350

407

463

528

623

70

808

95

030

9

24

6

25

35

50

70

95

20

50

85

240

300

-

-

4

47

75

207

254

304

345

387

436

502

563

-

-

96

24

47

74

24

257

293

328

37

428

480

-

-

06

42

68

202

255

32

36

40

47

554

634

-

-

Installation.conditions.for.above.ratings:Ambient air temperature: 30CGround temperature: 15CDepthoflaying:0.5mSoil thermal resistivity: 1.2C m/WMaximum conductor operating temperature at rated current is 90CForratingfactorsseeTables2to6and8to2


Table.32

*Circularconductors,allothersaresectorshaped

X l P E I N S U l AT E D C A B l E S T O B S 5 4 6 7

50

70

95

120

150

185

240

300

400

500

630

800

1000

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.2

2.4

2.6

2.8

5.0

6.6

8.4

9.8

2.2

23.0

25.5

27.7

3.0

36.0

40.0

45.8

50.8

.6*.6*.6*.6

.6

.6

.6

.6

2.0

2.0

2.0

2.5

2.5

20.6

22.4

24.3

2

ducab lv cable

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