IEC 63522-27 2025.docx

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1、Edition1.02025-04INTERNATIONALSTANDARDNORMEINTERNATIONALEElectricalrelays-Testingandmeasurement-Part27:ElectricalcontactnoiseRelaiselectriques-Essaisetmesurages-Partie27:Bruitelectriquedecontact(vUs)寸o，geoezCM，eegco9。山一THlSPUBLICATIONISCOPYRIGHTPROTECTEDCopyright2025IEC,Geneva5SwitzerlandAllrightsre

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5、eresidence.IECSecretariat3,ruedeVarembeCH-1211Geneva20SwitzerlandTel.:+41229190211infoiec.chwww.iec.chAbouttheIECTheInternationalElectrotechnicalCommission(IEC)istheleadingglobalorganizationthatpreparesandpublishesInternationalStandardsforallelectrical,electronicandrelatedtechnologies.AboutIECpublic

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9、ccesstouptodatecontenttailoredtoyourneeds.Electropedia-www.electropedia.orgTheworldsleadingonlinedictionaryonelectrotechnology,containingmorethan22500terminologicalentriesinEnglishandFrench,withequivalenttermsin25additionallanguages.AlsoknownastheInternationalElectrotechnicalVocabulary(IEV)online.Ap

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14、besoins.Electropedia-www.electropedia.orgLepremierdictionnairedelectrotechnologieenIigneaumonde,avecplusde22500articlesterminologiquesenanglaisetenfranais,ainsiqueIestermesequivalentsdans25Ianguesadditionnelles.EgalementappeleVocabulaireElectrotechniqueInternational(IEV)enIigne.Edition1.02025-04INTE

15、RNATIONALSTANDARDNORMEINTERNATIONALEElectricalrelays-Testingandmeasurement-Part27:ElectricalcontactnoiseRelaiselectriques-Essaisetmesurages-Partie27:BruitelectriquedecontactINTERNATIONALELECTROTECHNICALCOMMISSIONCOMMISSIONELECTROTECHNIQUEINTERNATIONALEICS29.120.70ISBN978-2-8327-0361-8Warning!Makesurethatyouobtainedthispublicationfromanauthorizeddistributor.Attention!Veuillezvousassurerquevousavezobtenucettepublicationviaundistributeuragree.RegisteredtrademarkoftheInternationalElectrotechnicalCommissionMarquedeposeedeIaCommissionElectrotechniqueInternationaleCONTENTSFOREWORD3