IEEE C12.4-1984 - American National Standard for Mechanical Demand Registers
Standard Details
The voltage and frequency rating, full-scale values, scale classes, demand intervals, multiplying constants, timing mechanism, and other general features of mechanical demand registers required for use on watthour meters are covered. Single-pointer-form, cumulative-form, and multiple-pointer-form registers are included. Although mechanical demand registers are designed for use as accessories in watthour meters, items relating to watthour meters are not covered.
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