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

专家解读视频
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.
PN EN 62053-21:2006 - Identical
EN 62053-21:2003 - Identical
NEN EN IEC 62053-21:2003 - Identical
OVE/ONORM EN 62053-21:2004 - Identical
SS EN 62053-21 Ed. 1 (2003) - Identical
AS 62053.21-2005 (R2016) - Modified
CEI EN 62053-21 Ed. 1 (2003) - Identical
BS EN 62053-21:2003 - Identical
DIN EN 62053-21 (2003-11) - Identical
VDE 0418-3-21:2003 - Identical
NF EN 62053-21:2003 - Identical
I.S. EN 62053-21:2003 - Identical
UNE EN 62053-21:2003 - Identical