SS EN 62054-21 Ed. 1 (2005)現行
Electricity Metering (a.c.) - Tariff And Load Control - Part 21: Particular Requirements For Time Switches
出版：Standardiserings-Kommissionen I Sverige
專家解讀視頻
Describes 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.
NF EN 62054-21:2006 - Identical
DIN EN 62054-21 (2005-06) - Identical
BS EN 62054-21:2004 - Identical
DIN EN 62054-21:2005 - Identical
EN 62054-21:2004 - Identical
DIN EN 62054-21:2017 - Identical
I.S. EN 62054-21:2004 - Identical
NBN EN 62054-21:2005 - Identical
UNE EN 62054-21:2005 - Identical
