# Directive 2014/32/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of measuring instruments (recast) (Text with EEA relevance), Division 4.2: Effect of disturbances of long duration

Extent: E+W+S+N.I.

Table 3
In the case of electromechanical electricity meters, no critical change values are defined for harmonic contents in the current circuits and for DC and harmonics in the current circuit.
Critical change values for disturbances of long duration
Disturbance
Critical change values in percent for meters of class
A
B
C
Reversed phase sequence
1,5
1,5
0,3
Voltage unbalance (only applicable to polyphase meters)
4
2
1
Harmonic contents in the current circuits
1
0,8
0,5
DC and harmonics in the current circuit
6
3
1,5
Fast transient bursts
6
4
2
Magnetic fields; HF (radiated RF) electromagnetic field; Conducted disturbances introduced by radio-frequency fields; and Oscillatory waves immunity
3
2
1

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Source: https://www.legislation.gov.uk/eudr/2014/32/annex/V/division/3/division/4/division/4.2 (the official version)
Page: https://openlegislation.uk/eu-directive-2014-32/annex-V/division-3/division-4/division-4.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.