Used for testing all kind of electrical relays and for evaluating their ability to perform under expected conditions of transportation, storage and all aspects of operational use. This document provides test methods to ensure that the connection between an earthing terminal and parts required to be connected thereto is of low resistance.
Life cycle
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IN_DEVELOPMENT IEC 63522-33 ED1 50.20
Proof sent to secretariat or FDIS ballot initiated: 8 weeks 31 jan 2025
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