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IEC 62054-21 Amd.1 Ed. 1.0 b:2017
M00001638
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IEC 62054-21 Amd.1 Ed. 1.0 b:2017 Amendment 1 - Electricity metering (AC) - Tariff and load control - Part 21: Particular requirements for time switches
Amendment by International Electrotechnical Commission, 01/30/2017
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