BS EN IEC 60051-5:2018
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The latest, up-to-date edition.
Direct acting indicating analogue electrical measuring instruments and their accessories Special requirements for phase meters, power factor meters and synchroscopes
03-26-2018
This part of IEC60051 applies to direct acting indicating phase meters, power factor meters and synchroscopes having an analogue display. This document also applies to non-interchangeable accessories (as defined in 3.1.23 of IEC60051‑1:2016 ) used with phase meters, power factor meters and synchroscopes. This document also applies to a phase meter or power factor meter whose scale marks do not correspond directly to its electrical input quantity, provided that the relationship between them is known.
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