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1、Edition1.02025-04INTERNATIONALSTANDARDNORMEINTERNATIONALEElectricalrelays-Testsandmeasurements-Part20:MechanicalenduranceRelaiselectriques-Essaisetmesurages-Partie20:Endurancemecanique(vUs)寸o，geoede&egco9。山一THISPUBLICATIONISCOPYRIGHTPROTECTEDCopyright2025IEC,Geneva,SwitzerlandAllrightsreserved.Unles
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5、ECSecretariat3,ruedeVarembeCH-1211Geneva20SwitzerlandTel.:+41229190211infoiec.chwww.iec.chAbouttheIECTheInternationalElectrotechnicalCommission(IEC)istheleadingglobalorganizationthatpreparesandpublishesInternationalStandardsforallelectrical,electronicandrelatedtechnologies.AboutIECpublicationsThetec
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15、DNORMEINTERNATIONALEElectricalrelays-Testsandmeasurements一Part20:MechanicalenduranceRelaiselectriques-Essaisetmesurages-Partie20:EndurancemecaniqueINTERNATIONALELECTROTECHNICALCOMMISSIONCOMMISSIONELECTROTECHNIQUEINTERNATIONALEICS29.120.70ISBN978-2-8327-0353-3Warning!Makesurethatyouobtainedthispublicationfromanauthorizeddistributor.Attention!Veuillezvousassurerquevousavezobtenucettepublicationviaundistributeuragree.RegisteredtrademarkoftheInternationalElectrotechnicalCommissionMarquedeposeedeIaCommissionElectrotechniqueInternationaleCONTENTSFOREWORD31 Scope52 Normat
