Standard [CURRENT]
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This part of IEC 63522 is used for testing all kinds of electrical relays and for evaluating their ability to perform under expected conditions of transportation, storage and all aspects of operational use. This document defines a standard test method to investigate the effect of acoustic noise in conjunction with the operating, releasing and cycling noise of a relay and the immunity of a relay to acoustic noise. Application of this document increases investment security for manufacturers and users and provides testing laboratories and manufacturers with defined information for testing.