ANSI/UL 894-1998 (分级)危险场所开关的应用
作者:标准资料网
时间:2024-05-20 16:58:09
浏览:8850
来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:SwitchesforUseinHazardous(Classified)Locations
【原文标准名称】:(分级)危险场所开关的应用
【标准号】:ANSI/UL894-1998
【标准状态】:作废
【国别】:美国
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:危险区;尺寸;外壳;危险场所分类(电气设备用);绝缘;速动开关;开关
【英文主题词】:Dangerarea;Dimensions;Enclosures;Hazardousareasclassification(forelectricalequipment);Insulations;Snapswitches;Switches
【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
【原文标准名称】:(分级)危险场所开关的应用
【标准号】:ANSI/UL894-1998
【标准状态】:作废
【国别】:美国
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:危险区;尺寸;外壳;危险场所分类(电气设备用);绝缘;速动开关;开关
【英文主题词】:Dangerarea;Dimensions;Enclosures;Hazardousareasclassification(forelectricalequipment);Insulations;Snapswitches;Switches
【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
下载地址:
点击此处下载