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  • BS 442:1950

    Current The latest, up-to-date edition.

    Specification for terminals for electrical apparatus for railway signalling purposes

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  30-12-1950

    Publisher:  British Standards Institution

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

    Co-operating organizations
    Foreword
    1 Scope
    2 Definition
    3 General
    4 Screw threads
    5 Components and assembly
    6 Materials and finish

    Abstract - (Show below) - (Hide below)

    Main terminals, not terminals inside apparatus. Nut, screw, insulated screw types, materials, dimensions, manufacturing requirements.

    Scope - (Show below) - (Hide below)

    This British Standard applies to the main terminals on electrical apparatus for railway signalling purposes, to which cables external to the apparatus are connected. It is not intended to apply to terminals inside the apparatus.

    Terminals of both the nut and the screw type, and of the insulated screw type, are specified.

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

    Committee GEL/9
    Development Note Reviewed and confirmed by BSI, November 2008. (10/2008)
    Document Type Standard
    Publisher British Standards Institution
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 519:1950 Specification for tractive armature direct current neutral-polar line relays for railway signalling
    BS 581:1950 Specification for electrically-driven point-operating machines for railways
    BS 1745:1951 Specification for alternating-current relays for railway signalling: track relays (double-element, 2-position), line relays (single-element, 2-position)
    BS 3347:1961 Specification for capacitors for railway signalling track circuits
    BS 1659:1950 Specification for tractive armature direct current neutral track and line relays for railway signalling
    BS 561:1951 Specification for alternating-current line relays double-element 3-position (for railway signalling)

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

    BS 57:1951 Specification. B.A. screws bolts and nuts
    BS 93:1951 Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A.
    BS 488(1948) : LATEST MOULDED INSULATING MATERIALS FOR GENERAL ELECTRICAL PURPOSES
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