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110kV1,2,3,3,1(1.,410007;2.,430074;3.,410007):110kV,,;:;;:TM247:B:100326520(2005)1120074202AnalysisofExplosionAccidentof110kVPowerCableTerminationSHENJiliang1,LUOJunhua2,TANGMeiyun3,LINGFeng3,LEIHongcai1(1.HunanElectricTest&ResearchInstitute,Changsha410007,China;2.WuhanHighVoltageResarchInstitute,Wuhan430074,China;3.HunanElectricPowerCompany,Changsha410007,China)Abstract:Inordertodeterminethereasonofexplosionof110kVcableterminal,theinvestigationofaccidentanda2nalysisofcableterminalandinsulationiscarriedout.Itisconcludedthatthemainreasonisthatthesemiconductivelayerofcableterminalexceedtherequireddimensionandtheanotherreasonistheinstallationofstressprickisnotperfect.Keywords:cabletermination;explosion;accidentanalysis02004208230110kVA,220kV2s()(XLPE),YJLW0221630,110kV,630mm2,3200m,110kV5min[1],20042072109202:1)410mm,;2),30mm,,25mm;3)XLPE,;4)25mm(1);5);6);7),,1Fig.1Dissectiondiagramafteraccident2,,,XLPE,,473111200511HighVoltageEngineeringVol.31No.11Nov.2005(2),,2:a),,,2Fig.2Diagramoftypicalcablebushingb),,(),x=l,El=U/thl,El,[2],,,,,,,,,,,,,,,,,23a),,,,;,b),,(),,()c)IEC[3],110kV,,d),,2:,,XLPE,,,;,,,XLPE,2mm,,[1]GB/T11017.1-11017.3,2002.110kV[S].[2][R].:,1975.[3]IEC60840.Powercableswithextrudedinsulationandtheiraccessoriesforratedvoltagesabove30kV(Um=36kV)upto150kV(Um=170kV)2testmethodsandrequirement[S],2004.(2004210226)1950,,,572005113111