【英文标准名称】:Low-voltageswitchgearandcontrolgear-Part3:Switches,disconnectors,switch-disconnectorsandfuse-combinationunits
【原文标准名称】:低压开关设备和控制设备.第3部分:开关、隔离开关、开关-隔离开关和保险丝组合部件
【标准号】:IEC60947-3Edition2.1-2001
【标准状态】:作废
【国别】:国际
【发布日期】:2001-05
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC17B
【标准类型】:()
【标准水平】:()
【中文主题词】:作标记;特性;开关设备;空气开关;隔离开关;熔断器;低压开关设备;开关;断路开关;电气工程;定义;额定值;使用说明;分类系统;规范(验收);低电压
【英文主题词】:Air-breakswitches;Classificationsystems;Definition;Definitions;Electricalengineering;Fuses;Instructionsforuse;Isolatorswitches;Lowvoltage;Low-voltageswitchgear;Marking;Properties;Ratings;Specification(approval);Switch-disconnectors;Switches;Switchgear
【摘要】:Thisstandardappliestoswitches,disconnectors,switch-disconnectorsandfuse-combinationunitstobeusedindistributioncircuitsandmotorcircuitsofwhichtheratedvoltagedoesnotexceed1000Va.c.or1500Vd.c.Themanufacturershallspecifythetype,ratingsandcharacteristicsaccordingtotherelevantstandardofanyincorporatedfuses.ThisstandarddoesnotapplytoequipmentcomingwithinthescopeofIEC60947-2,IEC60947-4-1andIEC60947-5-1;however,whenswitchesandfuse-combinationunitscomingintothescopeofthisstandardarenormallyusedtostart,accelerateand/orstopanindividualmotortheyshallalsocomplywiththeadditionalrequirementsgiveninannexA.TherequirementsforsinglepoleoperatedthreepoleswitchesareincludedinAnnexC.AuxiliaryswitchesfittedtoequipmentwithinthescopeofthisstandardshallcomplywiththerequirementsofIEC60947-5-1.Thisstandarddoesnotincludetheadditionalrequirementsnecessaryforelectricalapparatusforexplosivegasatmospheres.NOTE1Dependingonitsdesign,aswitch(ordisconnector)canbereferredtoas"arotaryswitch(disconnector)","cam-operatedswitch(disconnector)","knife-switch(disconnector)",etc.NOTE2Inthisstandard,theword"switch"alsoappliestotheapparatusreferredtoinFrenchas"commutateurs",intendedtomodifytheconnectionsbetweenseveralcircuitsandinteraliatosubstituteapartofacircuitforanother.NOTE3Ingeneral,throughoutthisstandardswitches,disconnectors,switch-disconnectorsandfuse-combinationunitswillbereferredtoas"equipment".Theobjectofthisstandardistostatea)thecharacteristicsoftheequipment;b)theconditionswithwhichtheequipmentshallcomplywithreferenceto1)operationandbehaviourinnormalservice;2)operationandbehaviourincaseofspecifiedabnormalconditions,e.g.shortcircuit;3)dielectricproperties;c)thetestsforconfirmingthattheseconditionshavebeenmetandthemethodstobeadoptedforthesetests;d)theinformationtobemarkedontheequipmentormadeavailablebythemanufacturer,e.g.inthecatalogue.
【中国标准分类号】:K31
【国际标准分类号】:29_130_20
【页数】:103P;A4
【正文语种】:英语


【英文标准名称】:TestMethodsforEvaluatingtheResistanceSpotWeldingBehaviorofAutomotiveSheetSteelMaterials
【原文标准名称】:汽车薄型钢材的耐点焊特性试验方法
【标准号】:ANSI/AWSD8.9M-2012
【标准状态】:现行
【国别】:美国
【发布日期】:2012-01-01
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Automotiveengineering;Electrodes;Endurancetests;Evaluations;Resistancespotwelding;Sheetsteels;Spotwelding;Testmethods;Testing;Weldingengineering;Weldingprocesses
【摘要】:Thedocumentcontainsanumberoftestsandtestmethodsusefulindeterminingthespotweldingperformanceofcoatedanduncoatedautomotivesheetsteelsofallstrengthlevelsandcompositions.Thetestmethodsaredesignedtoassesscurrentrange,electrodeendurance,andweldpropertiesofautomotivesheetsteels.Theweldpropertytestsincludetestsforholdtimesensitivity,weldhardness,sheartensionstrength,andcrosstensionstrength.Thedocumentandthetestmethods,parameters,andtestcriteriaitcontainsaredesignedexclusivelyforlaboratorytestingandarenotintendedasrecommendedpracticesorstandardsformanufacturingoperations.
【中国标准分类号】:H46
【国际标准分类号】:25_160_10
【页数】:
【正文语种】:英语