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IEC 60051-4:2018 ED5

Direct acting indicating analogue electrical measuring instruments and their accessories title - Part 4: Special requirements for frequency meters

Publication date:   Aug 30, 2018

General information

60.60 Standard published   Aug 30, 2018

IEC

TC 85

International Standard

17.220.20   Measurement of electrical and magnetic quantities

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Scope

IEC 60051-4:2018 applies to direct acting indicating analogue frequency meters of the following types:
• pointer-type frequency meters (as defined in 3.2.11 of IEC 60051-1:2016);
• vibrating-reed frequency meters (as defined in 3.2.12 of IEC 60051-1:2016).
IEC 60051-4:2018 also applies to non-interchangeable accessories (as defined in 3.1.23 of IEC 60051-1:2016) used with frequency meters.
IEC 60051-4:2018 cancels and replaces the fourth edition published in 1984. 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.
IEC 60051-4:2018 is to be used in conjunction with IEC 60051-1:2016.

Life cycle

PREVIOUSLY

WITHDRAWN
IEC 60051-4:1984 ED4

NOW

PUBLISHED
IEC 60051-4:2018 ED5
60.60 Standard published
Aug 30, 2018