UL 458 BULLETIN-2007 UL安全标准.陆地车辆和船只用功率变流器和功率变流器系统.评议提交截止日期:2007年11月19日

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【英文标准名称】:ULStandardforSafetyPowerConverters/InvertersandPowerConverter/InverterSystemsforLandVehiclesandMarineCraftsCOMMENTSDUE:NOVEMBER19,2007
【原文标准名称】:UL安全标准.陆地车辆和船只用功率变流器和功率变流器系统.评议提交截止日期:2007年11月19日
【标准号】:UL458BULLETIN-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【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】:Theserequirementscoverfixedandstationarypowerconverters,power-convertersystems,andaccessorieshavingaratednominalinputof120,120/240,or240V,alternatingcurrentandanominaloutputof24Vorless,directcurrent.Theseconvertersareintendedforusewithinlandvehicleswherenotdirectlyexposedtooutdoorconditions,andareintendedtobeemployedinaccordancewiththeNationalElectricalCode,NFPA70.Theserequirementsalsocoverfixed,stationaryandportablepowerinvertersandpower-invertersystemshavingadcinputanda120or240Vacoutput.Theseinvertersareintendedforusewithinlandvehicleswherenotdirectlyexposedtooutdoorconditions,andareintendedtobeemployedinaccordancewiththeNationalElectricalCode,NFPA70.Theserequirementsalsocoverconverters/invertersthatareadditionallyintendedtochargebatteries.PowerconverterscoveredbyPartiofthisstandardareintendedforconnectiontoestablished15-and20-Abranchcircuitswithinarecreationalvehicle.Power-inverterscoveredbyPartiofthisstandardareintendedforconnectiontoa12-or24-Vdcbatterysupply.Convertersandinvertersincorporatingprovisionsfortheconnectionoflessthanthreeline-voltagebranchcircuitsareinvestigatedundertherequirementsinPartiofthisstandard.Apower-converterorpower-invertersystemisintendedfordirectconnectiontoapower-supplyassembly.Asystemforconnectionofthreeorlessline-voltagebranchcircuits,notincludingthemaindisconnect,mayoptionallybeevaluatedinaccordancewiththerequirementsinPartiiofthisstandard,orwiththeapplicablerequirementsforaClassCTLpanelboardintheStandardforPanelboards,UL67.Powerconvertersystemsandpowerinvertersystemsalsoemploycircuitryasdescribedin1.4and1.5.Apower-converterorpower-invertersystemprovidedwithmorethanthreeline-voltagebranchcircuits,notincludingthemaindisconnect,isinvestigatedtotheapplicablerequirementsforaClassCTLpanelboardintheStandardforPanelboards,UL67.Convertersandinvertersincorporatingprovisionsfortheconnectionofmorethanthreeline-voltagebranchcircuitsarejudgedundertherequirementsinPartiofthisstandardandtheapplicablerequirementsforaClassCTLpanelboardinaccordancewiththeStandardforPanelboards,UL67.Eachpoleofamultiple-polecircuitbreakerisaseparatecircuit.
【中国标准分类号】:K41
【国际标准分类号】:29_200
【页数】:
【正文语种】:英语