IEC 60947-4-2 Edition 2.1-2002 低压开关设备和控制设备.第4-2部分:接触器和电动机起动器.交流半导体电动机控制器和起动器

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【英文标准名称】:Low-voltageswitchgearandcontrolgear-Part4-2:Contactorsandmotor-starters;ACsemiconductormotorcontrollersandstarters
【原文标准名称】:低压开关设备和控制设备.第4-2部分:接触器和电动机起动器.交流半导体电动机控制器和起动器
【标准号】:IEC60947-4-2Edition2.1-2002
【标准状态】:作废
【国别】:国际
【发布日期】:2002-03
【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】:定义;电气工程;特性;低压设备;低压电器;半导体连接器;规范(验收);固体闸流管;试验;半导体器件;短路保护;控制器;开关设备;起动器;半导体工程;断路器;检验;接触器;控制装置;电动机起动器;电动机接触器(开关);交流电压;半导体;低电压;低压开关设备
【英文主题词】:short-circuitprotection;inspection;semiconductordevices;specification(approval);definitions;properties;low-voltageequipment;lowvoltage;starters;semiconductors;controldevices;solid-statethyratrons;definition;semiconductorengineering;circuit-breakers;controllers;alternatingvoltages;contactorsformotors;electricalengineering;testing;switchgear;lowvoltageequipment;semiconductorcontactors;contactors;low-voltageswitchgear;motorstarters
【摘要】:Thisstandardappliestocontrollersandstarters,whichmayincludeaseriesmechanicalswitchingdevice,intendedtobeconnectedtocircuits,theratedvoltageofwhichdoesnotexceed1000Va.c.Thisstandardcharacterizescontrollersandstarterswithandwithoutbypassmeans.Controllersandstartersdealtwithinthisstandardarenotnormallydesignedtointerruptshort-circuitcurrents.Therefore,suitableshort-circuitprotection(see8.2.5)shouldformpartoftheinstallation,butnotnecessarilyofthecontrollerorstarter.Inthiscontext,thisstandardgivesrequirementsforcontrollersandstartersassociatedwithseparateshort-circuitprotectivedevices.Thisstandarddoesnotapplyto:–continuousoperationofa.c.motorsatmotorspeedsotherthanthenormalspeed;–semiconductorequipment,includingsemiconductorcontactors(see2.2.13ofIEC60947-1)controllingnon-motorloads;–electronica.c.powercontrollerscoveredbyIEC60146.Contactorsandcontrolcircuitdevicesusedincontrollersandstartersshouldcomplywiththerequirementsoftheirrelevantproductstandard.Wheremechanicalswitchingdevicesareused,theyshouldmeettherequirementsoftheirownIECproductstandard,andtheadditionalrequirementsofthisstandard.Theobjectofthisstandardistostateasfollows:–thecharacteristicsofcontrollersandstartersandassociatedequipment;–theconditionswithwhichcontrollersandstartersshallcomplywithreferenceto:a)theiroperationandbehaviour;b)theirdielectricproperties;c)thedegreesofprotectionprovidedbytheirenclosureswhereapplicable;d)theirconstruction;–thetestsintendedforconfirmingthattheseconditionshavebeenmet,andthemethodstobeadoptedforthesetests;–theinformationtobegivenwiththeequipment,orinthemanufacturer'sliterature.
【中国标准分类号】:K31
【国际标准分类号】:29_130_20
【页数】:86P.;A4
【正文语种】:英语


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【英文标准名称】:Precastconcreteproducts-Elementsforfences;GermanversionEN12839:2001
【原文标准名称】:混凝土预制件.栏栅元件
【标准号】:DINEN12839-2001
【标准状态】:作废
【国别】:德国
【发布日期】:2001-12
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:混凝土构件;预制配件;混凝土;稳定性;铰接式接头;质量要求;混凝土复合物;规范(验收);混凝土结构;生产;试验;检验;合格;抗拉强度;定义;特性;抗压强度;验收试验;质量;尺寸;预制混凝土部件;混凝土盖;预制的;栏栅;桩;生产控制
【英文主题词】:Acceptancetests;Checks;Compressivestrength;Concretecomponents;Concretecomposition;Concretecover;Concreteproducts;Concretestructures;Concretes;Conformity;Definition;Definitions;Dimensions;Fences;Piles;Precastconcreteparts;Prefabricated;Prefabricatedparts;Production;Productioncontrol;Properties;Quality;Qualityrequirements;Specification(approval);Stability;Tensilestrength;Testing
【摘要】:Thedocumentcoversprefabricatedconcreteelementswhichcanbeusedtogetherorincombinationwithotherelementstoerectfences.Thecurrentconcreteelementsincludeposts(reinforced,prestressedorpost-tensionedconcrete)solidorbaseoropenpanels,slabs,rails,spurs,strutsandgravelboards.Thepurposeofthedocumentistodefine:a)theterminology;b)themainguidelinesneededforconcreteelementswhicharewellsuitedtotheirintendeduse.#,,#
【中国标准分类号】:Q13
【国际标准分类号】:91_090;91_100_30
【页数】:44P.;A4
【正文语种】:德语


【英文标准名称】:TestMethodsforFreeze/ThawResistanceofLiquidWaterEmulsionFloorPolishes
【原文标准名称】:液态水乳化地板擦亮剂的耐冻结/融化的试验方法
【标准号】:ASTMD3209-1987
【标准状态】:作废
【国别】:美国
【发布日期】:1987
【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】:抛光剂;冻结-熔化试验;水;乳剂;试验
【英文主题词】:testing;water;emulsions;polishes;freeze-thawtests
【摘要】:
【中国标准分类号】:Y44
【国际标准分类号】:97_080
【页数】:2P;A4
【正文语种】:英语