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  • BS 7454(1991) : 1991

    Current The latest, up-to-date edition.

    METHOD FOR CALCULATION OF THERMALLY PERMISSIBLE SHORT-CIRCUIT CURRENTS, TAKING INTO ACCOUNT NON-ADIABATIC HEATING EFFECTS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-1991

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Introduction
    1 List of symbols
    2 Permissible short-circuit current
    3 Calculation of adiabatic short-circuit current
    4 Calculation of short-circuit temperature
    5 Calculation of non-adiabatic factor for
      conductors and spaced wire screens
    6 Calculation of non-adiabatic factor for
      sheaths, screens and wires
    Appendix A - Explanation of recommended
                 methods for taking into account
                 non-adiabatic heating effect when
                 calculating permissible short-circuit
                 currents

    Abstract - (Show below) - (Hide below)

    Provides a simple method for incorporating the non-adiabatic heating effect when calculating short-circuit ratings so that the same short-circuit ratings are obtained by different designers.

    General Product Information - (Show below) - (Hide below)

    Committee GEL/20/16
    Development Note Also numbered as IEC 60949. (10/2005) 1991 Edition Re-Issued in February 2010 & incorporates AMD 1 2008. Supersedes 07/30157615 DC. (02/2010)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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