SRPS EN IEC 60051-4:2023

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

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.

Related directives

NOTE: If the word "harmonized" (marked in green) is not found in the field with the name of the directive, it means that the European standard is not cited in the OJEU.