UL 894-1993 危险(分类的)场所用开关
作者:标准资料网 时间:2024-04-28 21:04:22 浏览:9730
来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:ULStandardforSafetySwitchesforUseinHazardous(Classified)LocationsSeventhEdition;ReprintwithRevisionsThroughandIncluding8/4/99
【原文标准名称】:危险(分类的)场所用开关
【标准号】:UL894-1993
【标准状态】:现行
【国别】:美国
【发布日期】:1993-06-28
【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】:绝缘;开关;危险场所分类(电气设备用);尺寸;危险区;速动开关;外壳
【英文主题词】:dimensions;hazardousareasclassification(forelectricalequipment);snapswitches;switches;enclosures;dangerarea;insulations
【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_260_20;29_120_40
【页数】:28P.;A4
【正文语种】:英语
【原文标准名称】:危险(分类的)场所用开关
【标准号】:UL894-1993
【标准状态】:现行
【国别】:美国
【发布日期】:1993-06-28
【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】:绝缘;开关;危险场所分类(电气设备用);尺寸;危险区;速动开关;外壳
【英文主题词】:dimensions;hazardousareasclassification(forelectricalequipment);snapswitches;switches;enclosures;dangerarea;insulations
【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_260_20;29_120_40
【页数】:28P.;A4
【正文语种】:英语
下载地址: 点击此处下载