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【英文标准名称】:ULStandardforSafetyThermoplastic-InsulatedUndergroundFeederandBranch-CircuitCables
【原文标准名称】:UL安全标准.热塑塑料绝缘地下馈电和支线电路电缆
【标准号】:UL493BULLETIN-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Theserequirementscover14-4/0AWGsingle-conductorPVC-insulatedand-jacketedundergroundfeederandbranch-circuitcableandflatmultiple-conductorPVC-jacketedundergroundfeederandbranch-circuitcablescontainingtwoorthree14-6AWGPVC-insulatedcircuitconductorswithorwithoutagroundingconductor.TheseTypeUFcablesareintendedforuseinaccordancewithArticle340andotherapplicablepartsoftheNationalElectricalCodeANSI/NFPA-70inwiringsystemsoperatingatapotentialof600Vorless.Submersiblewater-pumpcablesandmultiple-conductorassembliestowhichatype-letterdesignationisnotassignedarealsocoveredintheserequirements.Multiple-conductorcablethatismarked"UF-B"hasa75鳦(167鳩)jacketandconductorswithinsulationof90鳦(194鳩)dryandatleast60鳦(140鳩)wetlocations.Multiple-conductorcablethatismarked"UF"hasa60鳦(140鳩)jacketandconductorswithinsulationfor60鳦(140鳩)dryandwetlocations.Single-conductorcableismarked"UF"andhasanintegralinsulationandjacketfor60鳦(140鳩)dryandwetlocations.Theampacityofallcablescoveredintheserequirementsisthatof60鳦(140鳩)conductors.TheserequirementsdonotcoverinsulationotherthanPVC,roundcablescontainingtwoormorecircuitconductors,flatcablescontainingmorethanthreecircuitconductors,ormultiple-conductorcablescontainingcircuitconductorslargerthan6AWG.
【中国标准分类号】:K13
【国际标准分类号】:29_035_20;29_060_20
【页数】:
【正文语种】:英语