UL 894 BULLETINS-2005 危险(分级)场所用开关

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【英文标准名称】:SwitchesforUseinHazardous(Classified)
【原文标准名称】:危险(分级)场所用开关
【标准号】:UL894BULLETINS-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005-01-01
【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】:Coversswitchesforinstallationanduseinhazardous(classified)locationsClass1,Division1,GroupsA,B,C,andD,andClassIIDivision1,GroupsE,F,andG,inaccordancewithAmericanNationalStandardNationalElectricalCode,ASNI/NFPA70.Theserequirementscoversnapandsimiliarswitchesrated60amperesorlessat250voltsorless;30amperesorlessat600voltsorless;and2horsepowerorlessat600voltsorless.Theserequirementsapplytoswitchesforhazardouslocationsunderthefollowingatmosphericconditions:anambienttemperturebetweenminus25oC(minus13oF)andplus40oC(plus104oF),anoxygenconcentrationofnotgreaterthan21percentbyvolume,andanominalbarometricpressureofoneatmosphere.Theserequirementsdonotcoverknife,enclosed,clock-operated,ormagnetically-opeatedswitches,orindustrialcontrolequipmentsuchasauxiliarydevicesandmagneticormanualmotorcontrollers.
【中国标准分类号】:K31
【国际标准分类号】:29_120_40；29_260_20
【页数】:
【正文语种】:英语