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ANSI C12.1-2022
Electric Meters - Code for Electricity Metering (incorporates ANSI C12.20-2015)
This Code establishes acceptable performance criteria for new types of AC watthour meters, demand meters, demand registers, pulse devices, and auxiliary devices. It describes acceptable in-service performance levels for meters and devices used in revenue metering. It also includes information on related subjects, such as recommended measurements, installation requirements, test methods, and test schedules. This Code for Electricity Metering is designed as a reference for those concerned with the art of electricity metering, such as utilities, manufacturers, and regulatory bodies.
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NEMA: National Electrical Manufacturers Association [nema]
