Measuring and Metering

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  1. ANSI C12.22-2012 (R2020)

    American National Standard for Protocol Specification for Interfacing to Data Communication Networks

    standard by American National Standards Institute, 04/14/2015.

    Languages: English

    Historical Editions: ANSI C12.22-2008

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  2. HISTORICAL

    NEMA C12.24 TR-2011

    This document has been replaced. View the most recent version.

    Definitions for Calculations of VA, VAh, VAR, and VARh for Poly-Phase Electricity Meters

    standard by National Electrical Manufacturers Association, 05/29/2011.

    Languages: English

    Historical Editions: NEMA C12.24 TR-2022

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  3. MOST RECENT

    NEMA C12.24 TR-2022

    Definitions for Calculations of VA, VAh, VAR, and VARh for Poly-Phase Electricity Meters

    standard by National Electrical Manufacturers Association, 05/18/2022.

    Languages: English

    Historical Editions: NEMA C12.24 TR-2011

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  4. MOST RECENT

    NEMA C12.29 TR-2022

    Field Testing of Electricity Meters

    standard by National Electrical Manufacturers Association, 03/21/2023.

    Languages: English

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  5. MOST RECENT

    NEMA C12.30-2022

    American National Standard for Electric Meters— Test Requirements for Meters Equipped with Service Switches

    standard by National Electrical Manufacturers Association, 04/18/2023.

    Languages: English

    Historical Editions: NEMA C12.30 TR-2013

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  6. HISTORICAL

    NEMA C12.30 TR-2013

    This document has been replaced. View the most recent version.

    Test Requirements for: Metering Devices Equipped with Service Switches

    standard by National Electrical Manufacturers Association, 02/16/2014.

    Languages: English

    Historical Editions: NEMA C12.30-2022

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  7. ANSI C12.32-2021

    "American National Standard for Electricity Meters for the Measurement of DC Energy"

    standard by American National Standards Institute, 05/12/2021.

    Languages: English

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  8. ANSI C12.4-1984 (R2002, R2011)

    American National Standard for Registers, Mechanical Demand

    standard by American National Standards Institute, 05/01/1984.

    Languages: English

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  9. ANSI C12.5-1978 (R2002, R2012)

    American National Standard for Thermal Demand Meters

    standard by American National Standards Institute, 01/01/1978.

    Languages: English

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  10. ANSI C12.6-1987 (R2002, R2012, R2016)

    American National Standard for Phase-Shifting Devices Used In Metering, Marking and Arrangement of Terminals

    standard by American National Standards Institute, 05/01/1987.

    Languages: English

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