NEN 10521 : 1995
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
CLASS 0,5, 1 AND 2 ALTERNATING-CURRENT KILOWATTHOUR METERS
05-01-2003
01-12-2013
Applicable to newly manufactured induction type watthour meters of accuracy Classes 0,5, 1 and 2, for the measurement of alternating current electrical active energy of a frequency in the range of 45 Hz to 65 Hz.
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