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xlxu 发表于 2009-4-29 16:26:19

IEC 62053-22-2003 Electricity metering equipment (a.c.) –...

IEC 62053-22-2003 Electricity metering equipment (a.c.) –Particular requirements –
Part 22:
Static meters for active energy
(classes 0,2 S and 0,5 S)

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