【英文标准名称】:OutlineofInvestigationforResidentialPipeHeatingCableIssueNumber:4
【原文标准名称】:住宅用管道加热电缆的调查纲要(版本号4)
【标准号】:ULSUBJECT2049-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006-06-21
【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】:1.1Thisoutlinecoversresidentialpipeheatingcableintendedtoreducethelikelihoodofwaterfreezinginexposedpipesofresidences.ThesedevicesareconsideredappliancesinaccordancewithArticle422oftheNationalElectricalCode,NFPA70.1.2Cableunitsemployingdifferentheatingconductors,insulation,orotherformsofconstructionmaybeexaminedandtestedinaccordancewiththeintentofthisoutline,andiffoundtobesubstantiallyequivalent,maybecovered.1.3Residentialpipeheatingcablesmaybeinstalledonmetalorrigidplasticpipes.Plasticpipesareconsideredtohaveamaximumlong-termthermalexposurelimitof50°Cabsolute.1.4Theseheatingcablesarelimitedtoapplicationswheretheyarenotexposedtoweatherunlessadditionallyevaluatedforoutdooruse.
【中国标准分类号】:K13
【国际标准分类号】:
【页数】:12P.;A4
【正文语种】:英语