IEC 62053-21:2003 ED1

Electricity metering equipment (a.c.) - Particular requirements - Part 21: Static meters for active energy (classes 1 and 2) IEC 62053-21:2003 ED1

Publication date:   Jan 28, 2003

Scope

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.