【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


MIL-STD-883E, DEPARTMENT OF DEFENSE TEST METHODS STANDARD: MICROCIRCUITS, TEST STANDARDS (31 DEC 1996) [S/S BY MIL-STD-883F]., This standard establishes uniform methods, controls, and procedures for testing microelectronic devices suitable for use within Military and Aerospace electronic systems including basic environmental tests to determine resistance to deleterious effects of natural elements and conditions surrounding military and space operations, mechanical and electrical tests workmanship and training procedures and such other controls and constraints as have been deemed necessary to ensure a uniform level of quality and reliability suitable to the intended applications of those devices.