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  • BS 4293:1983

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Specification for residual current-operated circuit-breakers

    Available format(s):  Hardcopy, PDF

    Superseded date:  15-03-1995

    Language(s):  English

    Published date:  29-07-1983

    Publisher:  British Standards Institution

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

    Foreword
    Committees responsible
    Specification
    1 Scope
    2 Definitions and symbols
    3 General
    4 Ratings
    5 Marking
    6 Service conditions
    7 Design and construction
    8 Tests
    9 Condition of the circuit-breaker after test
    Appendices
    A Preferred ratings for voltage, current, tripping
       current and frequency
    B Function of the test device
    C Transformer balance test
    D Application of residual current-operated circuit-
       breakers
    Tables
    1 Table deleted
    2 Terminal capacities
    3 Test cables
    4 High voltage test values
    5 Endurance test sequence
    6 Prospective current values
    7 Voltage ratings
    Figures
    1 Test circuit for circuit fault current test
    2 Earth fault breaking current test
    3 Typical circuit diagram for a residual current-
       operated circuit-breaker

    Abstract - (Show below) - (Hide below)

    Requirements for rating, design, construction and testing of residual current operated circuit breakers having a rated voltage not exceeding 660 V, a rated current not exceeding 125 A and a rated frequency not exceeding 400 Hz. Includes circuit breakers utilizing auxiliary sources and circuit breakers with electronic circuitry.

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

    Committee PEL/23/1
    Development Note Supersedes 81/31957 DC, 84/24252 DC and BS 4293(1968). (06/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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    Standards Referencing This Book - (Show below) - (Hide below)

    BS 5419:1977 Specification for air-break switches, air-break disconnectors, air-break switch disconnectors and fuse-combination units for voltages up to and including 1000 V a.c. and 1200 V d.c.
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