
Electricity Metering Equipment (ac) - General Requirements, Tests and Test Conditions Part 21: Tariff and Load Control Equipment
出版:National Standards Authority of Ireland

专家解读视频
Provides general requirements for the type test of newly manufactured indoor tariff and load control equipment, like electronic ripple control receivers and time switches that are used to control electrical loads, multi-tariff registers and maximum demand indicator devices.
Together with I.S. EN 62054-11 and I.S. EN 62054-21, supersedes
I.S. EN 61037 and I.S. EN 61038.
(02/2005)
BS EN 62052-21:2004 - Identical
DIN EN 62052-21 (2005-06) - Identical
NBN EN 62052-21:2005 - Identical
NF EN 62052-21:2006 - Identical
IEC 62052-21 Ed. 1.0 - Identical
UNE EN 62052-21:2006 - Identical
SS EN 62052-21 Ed. 1 (2005) - Identical
EN 62052-21:2004 - Identical
DIN EN 62052-21:2005 - Identical
DIN EN 62052-21:2017 - Identical
BS EN 62052-21:2004+A1:2017 - Identical
SS EN 62052-21:2005 - Identical
DIN EN 62052-21 : 2017 - Identical
UNE EN 62052-21 : 2006 - Identical
NF EN 62052-21 : 2006 - Identical
BS EN 62052-21 : 2004 - Identical
IEC 62052-21 : 1.1 - Identical
NBN EN 62052-21 : 2005 - Identical
NF EN 62052-21 : 2006 - Identical
NBN EN 62052-21 : 2005 - Identical
UNE EN 62052-21 : 2006 - Identical
DIN EN 62052-21 : 2017 - Identical
BS EN 62052-21 : 2004 - Identical