Busways and Accessories

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  1. MOST RECENT

    NEMA BI 50052-2025▹

    Metal Cable Bus Systems (Previously CB 15000-2020)

    standard by National Electrical Manufacturers Association, 10/14/2025.

    Languages: English

    Historical Editions: NEMA CB 15000-2020

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  2. MOST RECENT

    NEMA BS 31050-2010 (R2024)▹

    General Instructions for Handling, Installation, Operation, and Maintenance of Busway Rated 600 Volts or Less

    standard by National Electrical Manufacturers Association, 06/12/2024.

    Languages: English

    Historical Editions: NEMA BU 1.1-2010, NEMA BU 1.1-2005

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  3. MOST RECENT

    NEMA BS 31051-2002 (R2024)▹

    Application Information for Busway Rated 600 V or Less

    standard by National Electrical Manufacturers Association, 06/12/2024.

    Languages: English

    Historical Editions: NEMA BU 1.2-2002 (R2008, R2013)

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  4. MOST RECENT

    NEMA BS 31055-2025▹

    In-Building Two-Way Emergency Responder Communications Enhancement Systems (ERCES) White Paper (Formerly NEMA ERCES 1)

    standard by National Electrical Manufacturers Association, 08/18/2025.

    Languages: English

    Historical Editions: NEMA ERCES 1-2021

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  5. MOST RECENT

    NEMA BU 1.1-2005 (Spanish)▹

    Instrucciones Generales Para el Manejo, Instalacion, Operacion y Mantenimiento de Electroductos Hasta 600 V Nominales o Menos

    standard by National Electrical Manufacturers Association, .

    Languages: Spanish

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  6. HISTORICAL

    NEMA BU 1.1-2010▹

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

    General Instructions for Handling, Installation, Operation, and Maintenance of Busway Rated 600 Volts or Less

    standard by National Electrical Manufacturers Association, 12/01/2010.

    Languages: English

    Historical Editions: NEMA BS 31050-2010 (R2024), NEMA BU 1.1-2005

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  7. HISTORICAL

    NEMA BU 1.2-2002 (R2008, R2013)▹

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

    Application Information for Busway Rated 600 V or Less

    standard by National Electrical Manufacturers Association, .

    Languages: English

    Historical Editions: NEMA BS 31051-2002 (R2024)

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  8. HISTORICAL

    NEMA CB 15000-2020▹

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

    Metal Cable Bus Systems

    standard by National Electrical Manufacturers Association, 05/20/2021.

    Languages: English

    Historical Editions: NEMA BI 50052-2025

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