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BS 787-1:1969

Current
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

03-20-1969

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

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.

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.

Committee
W/-
DevelopmentNote
Reviewed and confirmed by BSI, January 2011. (12/2010)
DocumentType
Standard
Pages
22
PublisherName
British Standards Institution
Status
Current

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