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