
Electricity Metering Equipment (a.c.) - General Requirements, Tests And Test Conditions - Part 21: Tariff And Load Control Equipment
出版:Verband Deutscher Elektrotechniker

专家解读视频
2005 [01/06/2005]DRAFT 2003 [01/05/2003]
Supersedes VDE 0419-1 and VDE 0420-1. (06/2005)
EN 62052-21:2004 - Identical
IEC 62052-21 Ed. 1.0 - Identical
DIN EN 62052-21 (2005-06) - Identical