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  • BS 787-1:1969

    Current The latest, up-to-date edition.

    Specification for mining type flameproof gate-end boxes Gate-end boxes for direct-on-line motor starting (for use on 3-phase a.c. circuits up to 650 V)

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  20-03-1969

    Publisher:  British Standards Institution

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

    Cooperating organizations
    Foreword
    Specification
    1. Scope
    2. Definitions
    3. Service conditions
    4. Ratings
    5. Marking
    6. Design and construction
    7. Tests
    8. Information to be supplied to the manufacturer
         with the enquiry
    Appendix
    A. Metric values
    Figures
    1. Arrangement of busbar chamber end flange,
         terminals and interconnections
    2. Busbar interconnecting trunk
    3. Skid coupling arrangement
    4. Busbar end cover

    Abstract - (Show below) - (Hide below)

    For boxes with a range of three current ratings, having air-break electrically operated contactor which, with associated equipment, provides for control and protection of coalface machinery. Design and construction; attachment of cables; coupling of units; means of isolation; main contactor; test methods.

    Scope - (Show below) - (Hide below)

    This British Standard specifies requirements for flameproof gate-end boxes designed primarily for use, in the mining industry, on 3-phase a.c. circuits up to 650 V, for direct-on-line contactor starting and for the protection of coalcutters, conveyors, loaders and the like.

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

    Committee W/-
    Development Note Reviewed and confirmed by BSI, January 2011. (12/2010)
    Document Type Standard
    Publisher British Standards Institution
    Status Current

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

    BS 5126-1:1993 Mining type flameproof supply and control units for use on systems up to 1100 V Specification for direct-on-line motor starters
    BS 5126-4:1993 Mining type flameproof supply and control units for use on systems up to 1100 V Specification for air-cooled transformers to power drilling machines
    BS 5126-2:1993 Mining type flameproof supply and control units for use on systems up to 1100 V Specification for circuit breaker units
    BS 5126-3:1993 Mining type flameproof supply and control units for use on systems up to 1100 V Specification for air-cooled lighting transformer units

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

    BS 279(1947) : LATEST 100-AMPERE FLAMEPROOF PLUGS AND SOCKETS (RESTRAINED TYPE)
    BS 587:1957 Specification. Motor starters and controllers
    BS 542:1973 Specification for cable glands and sealing boxes for association with apparatus for use at mines and quarries
    BS 88(1952) : LATEST CARTRIDGE FUSES FOR VOLTAGES UP TO AND INCLUDING 1000 V a.c. AND 1500 V d.c.
    BS 350:2004 Conversion factors for units
    BS 3454:1984 Specification for 1.9/3.3 kV, 300 A bolted flameproof cable couplers and adaptors (including 380/660 V and 640/1100 V, 300 A adaptors), primarily for use in mines
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