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【英文标准名称】:High-voltagealternatingcurrentcontactorsandcontactor-basedmotor-starters
【原文标准名称】:高压交流接触器和基于接触器的电动机起动器
【标准号】:IEC60470-2000
【标准状态】:作废
【国别】:国际
【发布日期】:2000-05
【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/SC17A
【标准类型】:()
【标准水平】:()
【中文主题词】:三极;三相;短路保护;交流开关;试验;电气工程;交流电流;特性;户内电气设备;接触器;电动机起动器;附件;过载保护;合格试验;规范(验收);过载保护装置;开关设备;定义;高电压
【英文主题词】:Accessories;Alternatingcurrent;Alternating-currentswitches;Contactors;Definition;Definitions;Electricalengineering;Highvoltage;Indoorelectricequipment;Motorstarters;Overloadprotection;Overloadprotectiondevice;Properties;Qualificationtests;Short-circuitprotection;Specification(approval);Switchgear;Testing;Three-phase;Three-pole
【摘要】:ThisInternationalStandardisapplicabletoa.c.contactorsand/orcontactor-basedmotor-startersdesignedforindoorinstallationandoperationatfrequenciesuptoandincluding60Hzonsystemshavingvoltagesabove1000Vbutnotexceeding12000V.Itisapplicableonlytothree-polecontactorsandstartersforuseinthree-phasesystems,andsingle-polecontactorsandstartersforuseinsingle-phasesystems.Two-polecontactorsandstartersforuseinsingle-phasesystemsaresubjecttoagreementbetweenmanufactureranduser.Contactorsand/orstartersdealtwithinthisstandardarenotnormallydesignedtointerruptshort-circuitcurrents.Therefore,suitableshort-circuitprotection(see3.4.110.12andnote2below)formspartoftheinstallation,butnotnecessarilyofthecontactororthestarter.Inthiscontext,thisstandardgivesrequirementsfor-contactorsassociatedwithoverloadand/orshort-circuitprotectivedevices(SCPD);-startersassociatedwithseparateshort-circuitprotectivedevicesand/orwithseparateshort-circuitandintegratedoverloadprotectivedevices;-contactorsorstarterscombined,underspecifiedconditions,withtheirownshort-circuitprotectivedevices.Suchcombinations,forexamplecombinationstarters(see3.4.110.9),areratedasunits.Contactorsintendedforclosingandopeningelectriccircuitsand,ifcombinedwithsuitablerelays,forprotectingthesecircuitsagainstoperatingoverloadswhichmayoccurtherein,arecoveredinthisstandard.Thisstandardisalsoapplicabletotheoperatingdevicesofcontactorsandtotheirauxiliaryequipment.Motor-startersintendedtostartandacceleratemotorstonormalspeed,toensurecontinuousoperationofmotors,toswitchoffthesupplyfromthemotorandtoprovidemeansfortheprotectionofmotorsandassociatedcircuitsagainstoperatingoverloadsaredealtwith.Motor-startertypesincludedare-direct-on-linestarters;-reversingstarters;-two-directionstarters;-reducedkVA(voltage)starters;-auto-transformerstarters;-rheostaticstarters;-reactorstarters.Starters,theoperationofwhichdependsonthermalelectricalrelaysformotorprotectioncomplyingwithIEC60255-8,ormotor-incorporatedthermalprotectivedevicesdealtwithinIEC60034-11,donotnecessarilymeetalltherelevantrequirementsofthisstandard.Overloadrelaysforstarters,includingthosebasedonsolid-statetechnology,arecoveredbythisstandard.Thisstandarddoesnotapplyto-circuit-breaker-basedmotor-starters;-single-poleoperationofmulti-polecontactorsorstarters;-two-stepauto-transformerstartersdesignedforcontinuousoperationinthestartingposition;-unbalancedrheostaticrotorstarters,i.e.wheretheresistancesdonothavethesamevalueinallphases;-equipmentdesignednotonlyforstarting,butalsoforadjustmentofspeed;-liquidstartersandthoseofthe"liquid-vapour"type;-semiconductorcontactorsandstartersmakinguseofsemiconductorcontactorsinthemaincircuit;-rheostaticstatorstarters;-contactorsorstartersdesignedforspecialapplications.Thisstandarddoesnotdealwithcomponentscontainedincontactorsandcontactor-basedmotor-starters,forwhichindividualspecificationsexist.NOTE1ThermalelectricalrelaysarecoveredbyIEC60255-8.NOTE2High-voltagecurrent-limitingfusesarecoveredbyIEC60282-1andIEC60644.NOTE3Metal-enclosedswitchgearandcontrolgearforratedvoltagesabove1kVanduptoandincluding52kVarecoveredbyIEC60298.NOTE4DisconnectorsandearthingswitchesarecoveredbyIEC60129.NOTE5High-voltageswitchesabove1kVandlessthan52kVarecoveredbyIEC60265-1.Theobjectofthisstandardistostatea)thecharacteristicsofcontactorsandstartersandassociatedequipment;b)theconditionswithwhichcontactorsorstartersshallcomplywithreferenceto:1)their
【中国标准分类号】:K43
【国际标准分类号】:29_130_10
【页数】:155P.;A4
【正文语种】:英语


【英文标准名称】:Soundsystemequipment.Part15:Preferredmatchingvaluesfortheinterconnectionofsoundsystemcomponents
【原文标准名称】:音响系统设备.第15部分:音响系统元件互连的优选匹配值
【标准号】:IEC60268-15-1987
【标准状态】:作废
【国别】:国际
【发布日期】:1987
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC84
【标准类型】:()
【标准水平】:()
【中文主题词】:公共寻址系统;元部件;电连接器;电声器件;电声学;插头;声学;优先数;声传输;传输装置;优选值;匹配值;音频设备;电气工程;无线电接收机;电气设备;试验;适应;互连接;电力系统;连接器;作标记
【英文主题词】:
【摘要】:
【中国标准分类号】:M72
【国际标准分类号】:2462
【页数】:37P;A4
【正文语种】:英语