电缆参数

6kV~35kV交联聚乙烯绝缘电力电缆XLPEInsulatedPowerCable交联聚乙烯绝缘电力电缆是采用化学方法或物理方法,使聚乙烯分子由线型分子结构转变为三维网状结构,由热塑性的聚乙烯变成热固性的交联聚乙烯,从而提高了聚乙烯的耐老化性能、机械性能和耐环境能力，并保持了优良的电气性能。交联聚乙烯绝缘电力电缆导体的允许长期最高温为900C，较低绝缘电缆、聚氯乙烯绝缘电缆和聚乙烯绝缘电缆高，且具有重量轻、结构简单、使用方便、耐化学腐蚀和敷设不受落差限制等优点。近年来，公司先后按IEC标准为全国城网改造、首都国际机场、北京西客站、中央电视台、安顺电厂、泰山核电站、二滩水电站、北仑电厂、伊敏电厂、扬州二电厂、上海地铁、宝钢集团、扬子石化等重点工程提供该系列产品，质量优良，获得用户一致好评。CROSS-LINKEDPOLYETHYLENE(XLPE)INSULATEDPOWERCABLEForXLPEinsulatedpowercable,eitherchemicalmethodorphysicalmethodismethodisemployedtotransformthemolecularstructureofPEfromchainintothree-dimensionalnetwork,i.e.thermo-plasticPEistransformedintothermosettingXLPE.Aftercross-linking,thethermalandmechanicalpropertiesofPEhavebeengreatlyimprovedwhileitsexcellentelectricalpropertyarestillretained.ThemaximumpermissibleoperatingtemperatureoftheconductorofaXLPEinsulatedpowercableis900Cwhichishigherthanthatofpaper,PVCorPEinsulatedpowercable.Thecablehastheadvantageofsimplicityinconstruction,lightnessinweight,convenienceinapplicationbesidesitsexcellentelectrical,thermal,mechanicalandanti-chemicalcorrosionproperties.Itcanalsobelaidwithnolimitationofleveldifferencealongtheroute.AccordingtothestandardsofIEC,inthelastfewyears,WehavesuppliedXLPEcablestotheChineseurbonpowernetworkreconstructionproject,BeijingCapitalInternationalAirport,BeijingWestRailwayStation,CCTVStation,AnshunPowerPlant,QinshanNuclearPowerStation,ErtanHydroelectricPowerStation,BeilunPowerPlant,YiminPowerPlant,YangzhouSecondPowerPlant,ShanghaiSubway,BaoSteelGroupandYangziPetrochemicalCompany,etc..Theproductsweregivenhighlyevaluationfromcustomers.产品标准Standard本产品按GB12706《额定电压35V及以下铜芯、滤芯塑料绝缘电缆》标准生产，同时还可根据用户需要按国际电工委员会推荐标准IEC、英国标准、德国标准及美国标准生产。Theproductismanufacturedaccordingtothestandardof《GB12706orIEC、BS、DINandICEAuponrequest.适用范围Applications本产品适用于工频额定电压3.6/6kv～26/35kv输配电线路作配送电能子用。Theproductissuitableforuseinpowertransmissionanddistributionlineswithratedpowerfrequencyvoltage3.6/6kv～26/35kv.使用特性Operatingcharacteristics·工频额定电压U0/U为3.6/6kv～26/35kv。Ratedpower-frepuencyvoltageU0/U:3.6/6kv～26/35kv.·电缆导体的最高允许工作温度：90℃。Max.admissibleoperatingtemperatureoftheconductor:90℃.·短路时（最长时间不超过5s）电缆导体的最高温度不超过2500C。Max.short-circurttemperatureofconductorshallnotexceed2500C.(5smaximumduration)·电缆敷设时环境温度应不低于00C。Theambienttemperatureunderinstallationshouldnotbelow00C.·电缆弯曲半径：三芯电缆不小于电缆外径15倍；单芯电缆不小于电缆外径20倍。Thebendingradiusofasingle-corecableshouldnotlessthan20timesofthecablediameter.Thebendingradiusofasingle-corecableshouldnotlessthan15timesofthecablediameter.电缆额定电压的选择Voltagedesignation·电缆的额定电压应适合于电缆系统的运行状况，用U0/U（Um）kv表示。U0－电缆设计用的导体对地或金属屏蔽之间的额定工频电压；U－电缆设计用的导体间的额定工频电压；Um－设备可承受的“最高系统电压”的最大值。Theratedvoltageofthecableforagivenapplixationshallbesuitablefortheoperatingconditionsinthesysteminwhichthecableisused,andisexpressedintheformofU0/U（Um）kvWhere:U0－Theratedpower-frequencyvoltagebetweenconductorsandearthmetallicscreen,forwhichthecabledesigned;U－Theratedpower-frequencyvoltagebetweenconductos,forwhichthecabledesigned;Um－Themaximumvalueofthe“highestsystemvoltage”forwhichtheequipmentmaybeused.·三相系统用电缆的U0值推荐如下表：ThevaluesofU0recommenedforcabletobeusedinthree-phasesystemsarelistedbelow:UkvUmkvU0*kvA和B类系统SystemcategoriesAandBC类系统SystemscategoriesC67.23.66101268.71517.58.71220241218303618－3540.52126*：.A类系统──该类系统任何一相导体与地和接地导体接触时，能在1min内与系统分离B类系统──该类系统仅包括单相接地故障短时运行的条件，接地故障时间应不超过1h,但在任何情况下，最长不超过8h每年接地故障总持续时间不超过125h；C类系统──不属于A类、B类的系统。SystemcategoryA──Thiscategorycomprisesthosesystemsinwhichanyphaseconductorthatcomesincontactwithearthoranearthconductor.isdisconnectedfromthesystemwithin1min.SystemcategoryB──Thiscategorycomprisesthosesystemwhich,underfaultconditions,areoperated,areoperatedforashorttimewithonephaseearthed.Thisperiodshouldnotexceed1h..Foralongerperiod,notexceeding8honanyoccasion,canbetolerated.Thetotaldurationofearthfaultsinanyyearshouldnotexceed125h.SystemcategeoryC──ThiscategorycomprisesallsystemswhichdonotfallintoAandB电缆的型号Typeofcable型号Type名称Designation适用范围ApplicationYJV铜芯交联聚乙烯绝缘氯乙烯护套电力电缆Copperconductor,XLPEinsulatedandPVCsheathedpowercable室内、隧道及电缆沟等场所，不能承受机械外力。单芯电缆不允许敷设在磁性管道中。Forlayingindoors、intunnelorcabletrench,unabletobearexternalmechan-icalforces.Single-corecableinmagneticductisnotpermissibleYJLY铝芯交联聚乙烯绝缘乙烯护套电力电缆Aluminiumconductor,XLPEinsulatedandPVCsheathedpowercableYJY铜芯交联聚乙烯绝缘氯乙烯护套电力电缆Copperconductor,XLPEinsulatedandPEsheathedpowercableYJLY铝芯交联聚乙烯绝缘氯乙烯护套电力电缆Alumimiumconductor,XLPEinsulatedandPEsheathedpowercableYJV22铜芯交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆Copperconductor,XLPEinsulated,steeltapearmouredandPVCsheathedpowercable室内、隧道、电缆沟内，或埋地敷设等，能承受一定机械外力，但不能承受大的拉力。Forlayingindoors、intunnel,cabletrench,ordirectinground,abletobearexternalmechanicalforces,butunabletobearlargepullingforce。YJLV22铝芯交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆Aluminiumconductor,XLPEinsulated,steeltapearmouredandPVCsheathedpowercableYJV23铜芯交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆Copperconductor,XLPEinsulated,steeltapearmouredandPVCsheathedpowercableYJLV23铝芯交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆Aluminiumconductor,XLPEinsulated,steeltapearmouredandPVCsheathedpowercableYJV32铜芯交联聚乙烯绝缘细钢丝铠室内、隧道、电缆沟、竖井或埋地敷设等，能承受机装聚氯乙烯护套电力电缆Copperconductor,XLPEi