Electricity metering (a.c.) - Tariff and load control - Part 21: Particular requirements for time switches (IEC 62054-21:2004)
German title
Wechselstrom-Elektrizitätszähler - Tarif- und Laststeuerung - Teil 21: Besondere Anforderungen an Schaltuhren (IEC 62054-21:2004)
Publication date
2004-10
Original language
English
Publication date
2004-10
Original language
English
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Replacement amendments
This document has been modified by: EN 62054-21/A1:2017-05
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