Direct acting indicating analogue electrical measuring instruments and their accessories - Part 5: Special requirements for phase meters, power factor meters and synchroscopes
This document also applies to non-interchangeable accessories (as defined in 3.1.23 of IEC 60051-1:2016) 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.
This fifth edition cancels and replaces the fourth edition published in 1985. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) updating of content in line with new editions of IEC 60051-1 and IEC 60051-9;
b) addition of Annex A to specify the nonconformity classification of test items.
|Publication type||International Standard|
|TC/SC||TC 85 - Measuring equipment for electrical and electromagnetic quantitiesrss|
|ICS||17.220.20 - Measurement of electrical and magnetic quantities|
|File size||1151 KB|
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