IEC 62054-21 : 1.1现行
ELECTRICITY METERING (AC) - TARIFF AND LOAD CONTROL - PART 21: PARTICULAR REQUIREMENTS FOR TIME SWITCHES
出版：International Electrotechnical Committee
专家解读视频
Defines particular requirements for the type test of newly manufactured indoor time switches with operation reserve that are used to control electrical loads, multi-tariff registers and maximum demand devices of electricity metering equipment.
SANS 62054-21 : 1ED 2015 - Identical
UNE EN 62054-21 : 2005 - Identical
VDE 0419-4-21 : 2017 - Identical
PN EN 62054-21 : 2006 AMD 1 2017 - Identical
NF EN 62054-21 : 2006 AMD 1 2017 - Identical
SN EN 62054-21 : 2004 AMD 1 2017 - Identical
CEI EN 62054-21 : 2005 - Identical
BS EN 62054-21 : 2004 - Identical
DS EN 62054-21 : 2004 - Identical
DIN EN 62054-21 : 2017 - Identical
NEN EN IEC 62054-21 : 2004 AMD 1 2017 - Identical
