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20092No.22009ElectricWire&Cable20094Apr.,20091,1,1,2,2(1.,100027;2.,710049):(DTS),,,,:;;;;:TM247.1;TM206:A:167226901(2009)0220023204TheMethodforCalculationofCableConductorTemperatureanditsApplicationXUEQiang,etal(BeijingElectricPowerCo./ElectricCableCo.,Beijing100027,China)Abstract:Thetechniqueofdistributedtemperaturesensing(DTS)hasfounduseinelectriccables,whichallowsac2curatecalculationoftheconductortemperatureinpowercablesinoperationandunderstandingofthereal2timeampac2ityofthecable.Weestablishedamethodforcalculationoftheconductortemperaturefromthesheathtemperaturebyusingamathematicmodelofconcentratedparametersandmadediscussionsonthefactorsaffectingtheaccuracyofthecalculation.Finally,weintroducedtheapplicationofasoftwarebasedonthismethod.Keywords:cable;temperature;ampacity;methodforcalculation;distributedtemperaturesensing:2008208211:(1977-),,.:[100027].0,,,,,[123],,;,,,,,,[425]220kV(XLPE),[6],,,[7]11.1,,,(),11,c;a;o;WdWc;12;T1T2T3T4,:c=o+Wc[T1+(1+1)T2+(1+1+2)T3]+Wd(0.5T1+T2+T3)(1)'1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1)ccmax,(1)I:I=(cmax-0)-Wd12T1+T2+T3R[T1+(1+1)T2+(1+1+2)T3](2)(2),1.2,,8h,,,,(1)()(1)o,,,:,T,Wc=I2R,I,,R,WdWc3,12,IEC60287[8],,2,C#,110kV(1#)220kV(2#)XLPE,12,,3411#/A////139517.225.024.713.4256019.935.438.29371023.148.749.713.3486028.668.470.213.9594832.683.183.11322#/A////139515.121.821.013.4260918.330.831.013.4380219.940.040.712.4498523.653.856.013.431#/A//A//A/98090.098190.298590.242#/A//A//A/128190.0126788.0125688.012,,903;34,,1%3,[6]2220kV,220kV,350A750A,2h4220092No.22009ElectricWire&Cable20094Apr.,2009©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=I2R,,,o(2)(,)12,c,I2,,,,,,,,,,,,,,,,2,,,,,4XLPE,,,:(1),,,(2),,903;,1%(3),,,,,,(32)5220092No.22009ElectricWire&Cable20094Apr.,2009©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1)LLDPE/POE/CB,,4,,6.75%22.51%(2)G27.5%,5%7.5%,(3)5%10%,,(4),:[1]RZALLEN.Thephysicsofamorphoussolids[M].NewYork:Wiley,1983.[2]QingQuanKe,XingYiHuang,PingKaijiangetal.Thermal,mechanical,anddielectricbehaviorsofcrosslinkedlinearlowdensitypolyethylene/polyolefinelastomersblends[J].JournalofAppliedPolymerScience,2007,104:192021927.[3]FGUBBELS,R.JEROME,PHTEYSSIE.Selectivelocalizationofcarbonblackinimmisciblepolymerblends[J].Macromole2cules,1994,27:197221974.[4]GubbelsF,BlacherS,VanlathemE,etal.Designofelectricalconductivecomposites:Keyroleofthemorphologyontheelectri2calpropertiesofcarbonblackfilledpolymerblends[J].Macro2molecules,1995,23:155921566.[5]MEdaliaAi.ElectricalconductingincarbonblackComposites[J].RubberChemistryandTechnology,1986,59(3):4322454.[6]GalgaliG,RameshC,LeleA.Rheologicalstudyonthekineticsofhybridformationinpolypropylenenanocomposites[J].Macro2molecules,2001,34(4):8522858.[7]FerryJ.D.Viscolelasticpropertiesofpolymers[M].NewYork:Wiley,1980.3562359.[8]LuHong2Bin,YangYu2Liang.Advancesintherheologyoffilledpolymermelts[J].PolymerBulletin,2001,36:18226.[9]SuhCH,WhiteJL.J.Talc2thermoplasticcompounds:Particleorientationinflowandrheologicalproperties[J].JournalofNon2NewtonianFluidMechanics,1996,62(223):1752206.[10]BWessling.Electricalconductivityinheterogenouspolymersys2tems[J].PolymerEngineeringScience,1991,31(16):120021206.(25):[1],.[J].,2004(2):36238.[2].[J].,2004(10):15218.[3].[J].,2005(4):61263.[4]DaleA,Douglass,Abdel2AtyEdris.Real2timemonitoringanddy2namicthermalratingofpowertransmissioncircuits[J].IEEETransactionsonPowerDelivery,1996,11(3):140721418.[5]LyallJS,NourbakhshG,ZhaoHC.Undergroundpowercableen2vironmenton2linemonitoring&analysis[C].ProceedingsofIEEEPowerEngineeringSocietySummerMeeting,2000,Volume1:4572462.[6],,.220kV[J].,2007,8(6):36241.[7],.[J].,2005,31(5):52254.[8]IEC60287-1(1994)Electriccables2Calculationofthecurrentrating2Part1:Currentratingequations(100%loadfactor)andcalculationoflosses[S].2320092No.22009ElectricWire&Cable20094Apr.,2009©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.