作者:标准资料网 时间:2024-05-19 07:53:49   浏览:8841   来源:标准资料网

【英文标准名称】:Residualcurrentoperatedcircuit-breakerswithoutintegralovercurrentprotectionforhouseholdandsimilaruses(RCCBs)-Part1:Generalrules
【原文标准名称】:家用和类似用途的无整体过电流保护装置的剩余电流驱动式断路器(RCCBs).第1部分:一般规则
【标准号】:IEC61008-1Edition2.2-2006
【标准状态】:作废
【国别】:国际
【发布日期】:2006-06
【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/SC23E
【标准类型】:()
【标准水平】:()
【中文主题词】:断路器;定义;民用电力设备;电气工程;电力设备;电气保护设备;故障电流;家用(安装)设备;规范(验收);开关;开关设备
【英文主题词】:Circuit-breakers;Definitions;Domesticelectricalinstallations;Electricalengineering;Electricalinstallations;Electricalprotectionequipment;Faultcurrents;Houseinstallations;Specification(approval);Switches;Switchgear
【摘要】:ThisInternationalStandardappliestoresidualcurrentoperatedcircuit-breakersfunctionallyindependentof,orfunctionallydependenton,linevoltage,forhouseholdandsimilaruses,notincorporatingovercurrentprotection(hereafterreferredtoasRCCBs),forratedvoltagesnotexceeding440Va.c.andratedcurrentsnotexceeding125A,intendedprincipallyforprotectionagainstshock-hazard.Thesedevicesareintendedtoprotectpersonsagainstindirectcontact,theexposedconductivepartsoftheinstallationbeingconnectedtoanappropriateearthelectrode.Theymaybeusedtoprovideprotectionagainstfirehazardsduetoapersistentearthfaultcurrent,withouttheoperationoftheovercurrentprotectivedevice.RCCBshavingaratedresidualoperatingcurrentnotexceeding30mAarealsousedasameansforadditionalprotectionincaseoffailureoftheprotectivemeansagainstelectricshock.Thisstandardappliestodevicesperformingsimultaneouslythefunctionsofdetectionoftheresidualcurrent,ofcomparisonofthevalueofthiscurrentwiththeresidualoperatingvalueandofopeningoftheprotectedcircuitwhentheresidualcurrentexceedsthisvalue.NOTE1TherequirementsforRCCBsareinlinewiththegeneralrequirementsofIEC60755.RCCBsareessentiallyintendedtobeoperatedbyuninstructedpersonsanddesignednottorequiremaintenance.Theymaybesubmittedforcertificationpurposes.NOTE2InstallationandapplicationrulesofRCCBsaregiveninIEC60364.Theyareintendedforuseinanenvironmentwithpollutiondegree2.Theyaresuitableforisolation.Specialprecautions(e.g.lightningarresters)maybenecessarywhenexcessiveovervoltagesarelikelytooccuronthesupplyside(forexampleinthecaseofsupplythroughoverheadlines)(seeIEC60364-4-443).RCCBsofthegeneraltypeareresistanttounwantedtrippingincludingthecasewheresurgevoltages(asaresultofswitchingtransientsorinducedbylightning)causeloadingcurrentsintheinstallationwithoutoccurrenceofflashover.RCCBsoftheStypeareconsideredtobesufficientproofagainstunwantedtrippingevenifthesurgevoltagecausesaflashoverandafollow-oncurrentoccurs.NOTE3SurgearrestersinstalleddownstreamofthegeneraltypeofRCCBsandconnectedincommonmodemaycauseunwantedtripping.NOTE4ForRCCBshavingadegreeofprotectionhigherthanIP20specialconstructionsmayberequired.Particularrequirementsarenecessaryfor–Residualcurrentoperatedcircuit-breakerswithintegralovercurrentprotection(seeIEC61009);–RCCBsincorporatedinorintendedonlyforassociationwithplugsandsocket-outletsorwithappliancecouplersforhouseholdorsimilargeneralpurposes.NOTE5Forthetimebeing,forRCCBsincorporatedin,orintendedonlyforsocket-outletsorplugs,therequirementsofthisstandardinconjunctionwiththerequirementsofIEC60884-1maybeusedasfarasapplicable.Therequirementsofthisstandardapplyfornormalenvironmentalconditions(see7.1).AdditionalrequirementsmaybenecessaryforRCCBsusedinlocationshavingsevereenvironmentalconditions.RCCBsincludingbatteriesarenotcoveredbythisstandard.
【中国标准分类号】:K45
【国际标准分类号】:29_120_50
【页数】:269P.;A4
【正文语种】:英语