产品标准Standard
本产品按GB12706-91《额定电压35KV及以下铜芯、铝芯塑料绝缘电力电缆》、GB12666.5-90《电线电缆成束燃烧试验》、GB/T17650-1998《取自电缆或光缆的材料燃烧时释出气体的试验方法》和GB/T17651-1998《电缆或光缆在特定条件下燃烧的烟密度测定》标准生产0.6/1kv~26/35kv塑料绝缘电力电缆,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。
TheproductismanufacturedaccordingtothestandardofGB12706-91、GB12666.5-90、GB/T17650-1998andGB/T17651-1998orIECandDINandICEA.
适用范围Applications
本产品适用于工频额定电压0.6/1kv~26/35KV输配电线路作配送电能之用。
Theproductissuitableforpowertransmissionanddistributionlineswithratedvoltage0.6/1kv~26/35kv.www.0512dxdl.com
使用特性Operatingcharacteristics.
工频额定电压U0/U为0.6/1kv~26/35kv.
RatedpowerfrequencyvoltageU0/U:0.6/1KV~26/35KV.
PVC绝缘电缆导体的长期最高工作温度为70℃。XLPE绝缘电缆导体的长期允许最高工作温度为90℃
PVCinsulatedpowercableMax.permissiblecontinuousoperatingtemperatureoftheconductorshouldnotexceed70℃,XPLEpermissiblecontinuousoperatingtemperatureoftheconductorshouldnotexceed90℃.
短路时(最长持续时间不超过5s)电缆导体的最高温度不超过250
MaxShort–circurrttemperatureofconductorshallnotexceed250.(5smaximumduration)
电缆敷设时环境温度不低于0℃
Theinstallationtemperatureshouldnotbelow0℃
电缆阻燃性能满足GB12666.5-90标准A类相应指标要求。
Theflame-ratardantpropertiesofcablecomplywiththerequirementsspecifiedinAkindofGB12666.5-90
低卤电缆除应满足GB12666.5-90标准中A类相应指标要求外,还应满足GB/T17650.1-1998标准规定的相应指标。
Theflame-retardantpropertiesoflowerhalogencablecomplywithrequirementsspecifiedinAkindofGB12666.5-90exceptcompluingwithrequirementsspecifiedinGB/T17650.2-1998.
无卤电缆除应满足GB12666.5-90标准中A类相应指标要求外,还应满足GB/T17650.2-1998和GB/T17651-1998标准规定的相应指标。
Theflame-retardantpropertiesofnohalogencablecomplywithrequirementsspecifiedinA
kind
of
GB12666.5-90
except
compluing
with
requirements
specified
in
GB/T17650.2-1998.andGB/T17651-1998.
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。Threebendingradiusofasinglecoreshouldnotlessthan20timesofthecablediameterTwobendingradiusofathree-corecableshouldnotlessthan15timesofthecablediameter.
电缆额定电压的选择Voltagedesignation
电缆额定电压应适合于电缆的系统的运行状况,用U0/U(Um)表示,均为有效值,单位为kv
U0-电缆设计用导体与屏蔽或金属套之间的额定工作电压;U—电缆设计用导体之间的额定工频电压;Um–设备可承受的“最高系统”电压的最大值。
Theratedvoltageofthecableforagivenapplicationshallbesuitablefortheoperatingconditioninthesysteminwhichthecableisused,andisexpressedintheformofU0/U(Um)areappliedtothesystemvoltagesandrunningstate,andexpressedintheformU0/Ukv.
U0-Theratedpower-frequencyvoltagebetweenconductorandearthormetallicscreen,forwhichthecabledesigned.
U-Theratedpower–frequencyvoltagebetweenconductorsforwhichthecabledesigned.Um-–Themaximumvalueof“thehighestsystemvoltage”forwhichtheequipmentmaybeused.
三相系统用电缆的U0值推荐如下表:
ThevaluesU0recommendedforcablestobeusedinthree-phasesystemsarelistedbelow:
第一类——用于单相接地故障时间每一次一般不大于1min,亦可用于最长不超过8小时,每年累计不超过125小时的系统。
第二类——用于接地故障时间更长的系统及对电缆绝缘性能要求较高的场合。
Thefirstclasscable–suitableforonesingle–phaseearthing–blocktimedoesnotexceedoneminuteeachtime.Max.timenotexceed8hours,andnotexceed125hoursinallinoneyear.
Thesecondclasscable–suitableformoretheearthing–blocktimeandmorebetterinsulatedperforma.
电缆的型号Typeofcable
0.6/1kv高阻燃(隔氧层)电缆的生产范围
ProductionRangeofhighperformanceflame–retardantcable远东电缆
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