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[制造] Electricity metering equipment (a.c.) Part 1
说明: 1. SCOPE This standard applies only to newly manufactured electromechanical watt-hour meters of accuracy classes 0, 5, 1 and 2, for the measurement of alternating current electrical z active energy in 50 Hz or 60 Hz networks and it applies to their<eifer> 上传 | 大小:142kb