DIN EN 62052-21
; VDE 0418-2-21:2017-10
Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 21: Tariff and load control equipment (IEC 62052-21:2004 + A1:2016); German version EN 62052-21:2004 + A1:2017
Wechselstrom-Elektrizitätszähler - Allgemeine Anforderungen, Prüfungen und Prüfbedingungen - Teil 21: Einrichtungen für Tarif- und Laststeuerung (IEC 62052-21:2004 + A1:2016); Deutsche Fassung EN 62052-21:2004 + A1:2017
Overview
This standard specifies 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. This standard gives no requirements for constructional details internal to the tariff and load control equipment. In the case where tariff and load control functionality is integrated into multifunction electricity metering equipment, the relevant parts of this standard apply. This standard does not cover the acceptance tests and the conformity tests. Nevertheless, an example of what could be an acceptance test is given in Annex F. The dependability aspect is covered by the documents of the IEC 62059 series. The responsible committee is DKE/K 461 "Messeinrichtungen und -systeme für Elektrizität" ("Metering equipment and systems for electricity") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.
