EV-SSPS热塑性弹性体绝缘铜丝编织屏蔽热塑性弹性体护套电动汽车传导充电系统用电缆Powercablethroughacertainloadcurrent,itwillheat,withtheloadcurrentincreases,thehigherthesurfacetemperatureofthecable,ifnothandledintime,thec***equencescanbeimagined.Suchas:polyvinylchloride(PVC)cable,isthecoretemperatureof70degreesfortheupperlimit,thesurfacetemperaturewillbelowto5~10degrees.Therefore,thecablesurfacetemperatureof60degreesbelowthebasicsecurity,fromthepowermaintenancec***iderati***,ofcourse,thelowerthetemperaturethebetter.电缆在运行中发热原因如下：EV-SSPS充电桩电缆Thereas***fortheheatingofthecableareasfollows:1、电缆导体电阻不符合要求，造成电缆在运行中产***热现象。1,thecableconductorresistancedoesnotmeettherequirements,resultingintheoperationofthecablefever.2、电缆选择型不当，造成使用的电缆的导体截面过小，运行中产生过载现象，长时间使用后，电缆的发热和散热不平衡造成产***热现象。EV-SSPS充电桩电缆2,cableselectionisnotappropriate,resultingintheuseofthecableconductorsectionistoo***all,resultinginoverloadphenomenon,afteralongperiodofuse,thecableheatandheatimbalancecausedbyheat.3、电缆安装时排列过于密集，通风散热效果不好，或电缆靠近其他热源太近，影响了电缆的正常散热，也有可能造成电缆在运行中产***热现象。EV-SSPS充电桩电缆3,thearrangementofthecableistoodense,ventilationcoolingeffectisnotgood,orthecableistooclosetootherheatsources,affectingthenormalheatdissipationofthecable,butalsomaycausethecabletoproduceheatinoperation.4、接头制造技术不好，压接不紧密，造成接头处接触电阻过大，也会造成电缆产***热现象。4,thejointmanufacturingtechnologyisnotgood,crimpingisnottight,resultinginjointcontactresistanceistoolarge,itwillcausethecableheatingphenomenon.5、电缆相间绝缘性能不好，造成绝缘电阻较小，运行中也会产***热现象。5,thecableinterphaseinsulationperformanceisnotgood,resultingininsulationresistanceis***all,theoperationwillproduceheat.6、铠装电缆局部护套破损，进水后对绝缘性能造成缓慢***作用，造成绝缘电阻逐步降低，也会造成电缆运行中产***热现象。6,armoredcablepartialsheathdamage,afterthewatertotheinsulationperformancecausedbytheslowdestruction,resultinginthegradualreductionofinsulationresistance,willalsocausethecablerunningafever.电缆产***热现象后，如不找到原因及时排除故障，电缆继续连续通电运行后将产生绝缘热击穿现象。造成电缆发生相间短路跳闸现象，严重的可能引起火灾。Aftertheheatingphenomenonofthecable,ifthecauseisnotfoundoutintime,thecablewillcontinuetoruncontinuously,andtheinsulationthermalbreakdownwilloccur.Theoccurrenceofinterphaseshortcircuittrippingphenomenon,seriousfiremaycause.)