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IEC 62052-21 Ed. 1.0 en:2004

Electricity metering equipment (a.c.) - General requirements, tests and test conditions - Part 21: Tariff and load control equipment

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.

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International Electrotechnical Commission [iec]
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