【英文标准名称】:Low-voltageswitchgearandcontrolgear-Part4-3:Contactorsandmotor-starters-ACsemiconductorcontrollersandcontactorsfornon-motorloads
【原文标准名称】:低压开关设备和控制设备.第4-3部分:电流接触器和电动机起动器非电动机负载用交流半导体控制器和电流接触器
【标准号】:IEC60947-4-3Edition1.1-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-01-01
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC17B
【标准类型】:()
【标准水平】:()
【中文主题词】:交流电压;接触器;控制装置;定义;电负载;电气工程;电磁兼容性;检验;低电压;低压电器;低压开关设备;电动机起动器;产品信息;特性;半导体连接器;半导体器件;规范(验收);开关设备;试验
【英文主题词】:Alternatingvoltages;Contactors;Controldevices;Definition;Definitions;Electricload;Electricalengineering;Electromagneticcompatibility;EMC;Inspection;Lowvoltage;Low-voltageequipment;Low-voltageswitchgear;Motorstarters;Productinformations;Properties;Semiconductorcontactors;Semiconductordevices;Specification(approval);Switchgear;Testing
【摘要】:ThispartofIEC60947appliestoa.c.semiconductornon-motorloadcontrollersandcontactorsintendedforperformingelectricaloperationsbychangingthestateofa.c.electriccircuitsbetweentheON-stateandtheOFF-state.Typicalapplicationsaregivenintable2.Ascontrollers,theymaybeusedtoreducetheamplitudeofther.m.s.a.c.voltageontheloadterminalsfromthatoftheappliedvoltage–eithercontinuouslyorforaspecifiedperiodoftime.Thehalf-waveperiodofthea.c.waveformremainsunchangedfromthatoftheappliedvoltage.Theymayincludeaseriesmechanicalswitchingdeviceandareintendedtobeconnectedtocircuits,theratedvoltageofwhichdoesnotexceed1000Va.c.Thisstandardcharacterizescontrollersandcontactorsforusewithorwithoutbypassswitchingdevices.Thesemiconductorcontrollersandcontactorsdealtwithinthisstandardarenotnormallyintendedtointerruptshort-circuitcurrents.Therefore,suitableshort-circuitprotection(see8.2.5)shouldformpartoftheinstallationbutnotnecessarilyofthecontrolleritself.Inthiscontext,thisstandardgivesrequirementsforsemiconductorcontrollersandcontactorsassociatedwithseparateshort-circuitprotectivedevices.Thisstandarddoesnotapplyto?operationofa.c.andd.c.motors;?low-voltagea.c.semiconductormotorcontrollersandstarterscoveredbyIEC60947-4-2;?electronica.c.powercontrollerscoveredbyIEC60146;?all-or-nothingsolid-staterelays.Contactorsandcontrol-circuitdevicesusedinsemiconductorcontrollersandcontactorsshouldcomplywiththerequirementsoftheirrelevantproductstandard.Wheremechanicalswitchingdevicesareused,theyshouldmeettherequirementsoftheirownIECproductstandardandtheadditionalrequirementsofthisstandard.
【中国标准分类号】:K31
【国际标准分类号】:29_130_20
【页数】:168P.;A4
【正文语种】:英语


【英文标准名称】:Aerospaceseries.Aluminiumalloyal-P7009-T74511.ExtrudedbarsandsectionsaorDinferiororequalto125mm.
【原文标准名称】:航空航天系列.铝合金AL-P7009-T74511.125mm以下或等于125mm挤压棒材和型材A或D
【标准号】:NFL14-184-1993
【标准状态】:现行
【国别】:法国
【发布日期】:1993-01-01
【实施或试行日期】:1993-01-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:竿材;轮廓;航空运输;航天运输;铝;航空航天运输;特性;尺寸;挤压的;规范(验收);飞行器;材料;金属型材;化学成分;铝合金;金属碎屑
【英文主题词】:
【摘要】:
【中国标准分类号】:V11
【国际标准分类号】:49_025_20
【页数】:5P;A4
【正文语种】:其他