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ANSI C12.4 1984 Edition, January 1, 1984
Complete Document
Active, Most Current
Registers - Mechanical Demand
Includes all amendments and changes through Reaffirmation Notice , 2011
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ANSI/NEMA MW 1000, 2014
IHS Standards Expert
The NEMA Smart Meter Package provides the requirements and guidance on electricity metering, watt hour meter sockets, device data tables, meter interfacing to data communication networks and type 2 optical ports. NEMA Smart Meter Package also establishes performance criteria for thermal demand meters, mechanical demand registers and phase shifting devices used in metering. Test methods for transformer-rated meters and self contained "A" base watt hour meter are included in this package as well as a watt hour safety standard. This package contains all parts of NEMA ANSI C12 and NEMA SG-AMI 1.