【英文标准名称】:ULStandardforSafetyElectricalEquipmentforUseinClassIandII,Division2,andClassIIIHazardous(Classified)LocationsThirdEdition;ReprintedWithRevisionsThroughandIncluding2/3/2004
【原文标准名称】:2类1级、2级和3级危险场所用电气设备
【标准号】:UL1604-1994
【标准状态】:作废
【国别】:美国
【发布日期】:1994-04-28
【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】:安全要求;危险区域;危害等级;电气器具;电气设备;危险场所分类(电气设备用)
【英文主题词】:safetyrequirements;electricalequipment;electricappliances;hazardousareasclassification(forelectricalequipment);dangerzones;hazardclasses
【摘要】:1.1Theserequirementsapplytoequipment,circuits,orcomponentsintendedforuseinClassI,GroupsA,B,C,andD,Division2,hazardous(classified)locations;ClassII,GroupsFandG,Division2,hazardous(classified)locations;andClassIII,Divisions1and2,hazardous(classified)locationsasdefinedinArticle500oftheNationalElectricalCode,NFPA70.1.2TheequipmentshallbecapableofbeinginstalledinaccordancewiththerequirementsintheNationalElectricalCode,NFPA70.Battery-poweredportableequipmentneednotcomplywiththisrequirement1.3TherequirementscoverClassI,Division2electricalequipment,orpartsofsuchequipment,inwhichthecircuitsandcomponentsunderintendedoperatingconditionsareincapableofcausingignitionofthespecifiedflammablegas-orvapor-airmixture.1.4TheserequirementscoverClassII,Division2,andClassIII,Division1andDivision2equipmentthatisconstructedtoreduceorexcludetheentranceofdust.1.5Theserequirementsapplyonlytoequipmentforuseunderthefollowingatmosphericconditions.a)Anambienttemperatureof5to40℃(41to104℉),b)Anoxygenconcentrationnotgreaterthan21percent,andc)Anominalbarometricpressureofoneatmosphere.1.6Theserequirementscoverportablebattery-poweredequipment,otherthanflashlightsandlanterns,forClassIandClassII,Division2,andClassIII,Divisions1and2hazardous(classified)locations.1.6.1Theserequirementsalsocoverequipment,circuits,orcomponentsintendedforinstallationanduseinClassI,Zone2,GroupsIIA,IIB,andIIChazardous(classified)locations.1.7TheserequirementsdonotcoverelectriclightingfixturesforuseinDivision2hazardous(classified)locationswhicharecoveredintheStandardforElectricLightingFixturesforUseinHazardous(Classified)Locations,UL844.1.8Theserequirementsdonotcoverelectricmotors,electricheaters,heattracingcablesandsimilarheat-producingdevices,orequipmentwithcathoderaytubes,foruseinDivision2locations.Suchproductsarecoveredunderseparaterequirements.1.9Theserequirementsdonotcoverexplosion-proof,dust-ignition-proof,orintrinsically-safemethodsofprotectionforelectricalequipmentorpartsthereof.SuchmethodsofprotectionareconsideredacceptableforDivision2hazardouslocations.Therequirementsarecoveredinotherstandards.1.10Aproductthatcontainsfeatures,characteristics,components,materials,orsystemsnewordifferentfromthosecoveredbytherequirementsinthisstandard,andthatinvolvesariskoffireorofelectricshockorinjurytopersonsshallbeevaluatedusingappropriateadditionalcomponentandend-productrequirementstomaintainthelevelofsafetyasoriginallyanticipatedbytheintentofthisstandard.Aproductwhosefeatures,characteristics,components,materials,orsystemsconflictwithspecificrequirementsorprovisionsofthisstandarddoesnotcomplywiththisstandard.Revisionofrequirementsshallbeproposedandadoptedinconformancewiththemethodsemployedfordevelopment,revision,andimplementationofthisstandard.
【中国标准分类号】:K35
【国际标准分类号】:29_260_20
【页数】:26P.;A4
【正文语种】:英语


Product Code:SAE AMS7238
Title:Alloy Pm Shapes, Corrosion, Wear, and Heat Resistant 56co 30cr 8.25w (1.10-1.90c) (Cancelled May 2001)
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion, wear, and heat resistant cobalt alloy in the form of powder-metallurgy shapes.