Electricity metering equipment (a.c.) - Particular requirements - Part 21: Static meters for active energy (classes 1 and 2)

Equipement de comptage de l'électricité (c.a.) - Prescriptions particulières - Partie 21: Compteurs statiques d'énergie active(classes 1 et 2)

IEC 62053-21:2003+A1:2016 Applies only to newly manufactured static watt-hour meters of accuracy classes 1 and 2, for the measurement of alternating current electrical active energy in 50 Hz or 60 Hz networks and it applies to their type tests only. It applies only to static watt-hour meters for indoor and outdoor application consisting of a measuring element and register(s) enclosed together in a meter case. This publication is of high relevance for Smart Grid. This consolidated version consists of the first edition (2003) and its amendment 1 (2016). Therefore, no need to order amendment in addition to this publication. The contents of the corrigendum of March 2018 have been included in this copy.

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