IEC 61540 Edition 1.1-1999 电气附件.家用和类似用途(PRCDS)无集成过电流保护的便携式测残余电流的装置

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【英文标准名称】:Electricalaccessories-Portableresidualcurrentdeviceswithoutintegralovercurrentprotectionforhouseholdandsimilaruse(PRCDs)
【原文标准名称】:电气附件.家用和类似用途(PRCDS)无集成过电流保护的便携式测残余电流的装置
【标准号】:IEC61540Edition1.1-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-03
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC23E
【标准类型】:()
【标准水平】:()
【中文主题词】:线路开关;过电流保护装置;电气器具;家用;试验;电气工程;开关
【英文主题词】:overcurrentprotection;switches;electricappliances;testing;lineswitches;electricalengineering;householduse
【摘要】:ThisInternationalStandardappliestoportabledevicesforhouseholdandsimilaruses(hereafterreferredtoasportableresidualcurrentdevices(PRCDs),consistingofaplug,aresidualcurrentdevice(RCD)andoneormoresocket-outletsoraprovisionforconnection,functionallyindependentof,orfunctionallydependenton,linevoltage.Theydonotincorporateovercurrentprotection.Theyareintendedforsingle-phasecircuitsforratedcurrentsnotexceeding16Aforratedvoltagesnotexceeding250Va.c.,orforratedcurrentnotexceeding32Aforratedvoltagesnotexceeding130Va.c.toearth.Theyareintendedtoprovideprotectionagainstshockhazardincaseofdirectcontact,inadditiontotheprotectionprovidedbythefixedinstallationsforthecircuitdownstream.PRCDshavearatedresidualoperatingcurrentnotexceeding0,03A.Theyensuretrippingincaseofresidualalternatingcurrentsandresidualpulsatingdirectcurrents,whethersuddenlyappliedorslowlyrising(see8.15).Plugsandsocket-outletswillcomplywiththerelevantstandards.Thisstandardappliestoportabledevicesperformingsimultaneouslythefunctionsofdetectionoftheresidualcurrent,ofcomparisonofthevalueofthiscurrentwiththeresidualoperatingvalueandofopeningoftheprotectedcircuitwhentheresidualcurrentexceedsthisvalue.Theyarenotintendedtobeusedaspartsoffixedinstallations.Theirconnectingmeansmaybeplugs,socket-outlets,terminalsorcords.NOTE1–TherequirementsforPRCDsareinlinewiththegeneralrequirementsofIEC61008-1.PRCDsareessentiallyintendedtobeoperatedbyunskilledpersonsanddesignednottorequiremaintenance.Theymaybesubmittedforcertificationpurposes.NOTE2–TheRCDpartofthePRCDisnotintendedtoprovideisolationwhichmaybeprovidedbytheplug.NOTE3–Theuseofanintegralfuseispermitted,ifnecessary,fortherelevantplugandsocket-outletsystem.NOTE4–InAustraliaandinGermany,PRCDsswitchingalsothePEcircuitareinuse.Suchdevicesarenotcoveredbythisstandard.Therequirementsofthisstandardapplyforenvironmentalconditionsasdefinedin7.1.AdditionalrequirementsmaybenecessaryforPRCDsusedinlocationshavingmoresevereenvironmentalconditions.PRCDsincludingbatteriesarenotcoveredbythisstandard.ThepresentstandarddoesnotcontainadditionalrequirementsforPRCDswithoutearthingcontactsforwhichspecificrequirementsmayapply.Itmay,however,beusedasaguideforsuchdeviceswhichareintendedtobeusedonlywithClassIIappliances.ThepresentstandarddoesnotapplytoPRCDsprovidingtheadditionalfunctionofdetectingfaultsonthesupplysideandavoidingtheclosingofthePRCDonafaultysupplycircuit.
【中国标准分类号】:K31
【国际标准分类号】:29_120_01
【页数】:21P;A4@
【正文语种】:英语


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【英文标准名称】:StandardPracticeforUltrasonicPulse-EchoStraight-BeamExaminationbytheContactMethod
【原文标准名称】:用接触法做超声脉冲回波纵波检验
【标准号】:ASTME114-1995(2005)
【标准状态】:现行
【国别】:
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E07.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:脉冲回波;超声波学;触点;试验;无损检验;超声检验
【英文主题词】:contact;examination;nondestructivetesting;pulse-echo;straight-beam;ultrasonic
【摘要】:1.1Thispracticecoversultrasonicexaminationofmaterialsbythepulse-echomethodusingstraight-beamlongitudinalwavesintroducedbydirectcontactofthesearchunitwiththematerialbeingexamined.1.2Thispracticeshallbeapplicabletodevelopmentofanexaminationprocedureagreeduponbytheusersofthedocument.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:StandardTestMethodsandDefinitionsforMechanicalTestingofSteelProducts
【原文标准名称】:钢制品机械测试定义的标准试验方法
【标准号】:ASTMA370b-2007
【标准状态】:作废
【国别】:美国
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:布氏硬球;摆式冲击试验;定义;延伸;FATT;硬度试验;机械测试;洛氏硬度;钢产品;钢;抗拉强度;屈服强度
【英文主题词】:Brinellhardness;Charpyimpacttests;Definition;Definitions;Elongation;FATT;Hardnesstests;Mechanicaltesting;Rockwellhardness;Steelproducts;Steels;Tensilestrength;Yieldstrength
【摘要】:
【中国标准分类号】:
【国际标准分类号】:77_040_10;77_140_01
【页数】:47P;A4
【正文语种】:英语