BSI - BS 787-1
Specification for Mining type flameproof gate-end boxes - Part 1: Gate-end boxes for direct-on-line motor starting (for use on 3-phase a.c. circuits up to 650 V)
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| Organization: | BSI |
| Publication Date: | 20 March 1969 |
| Status: | active |
| Page Count: | 22 |
| ICS Code (Low voltage switchgear and controlgear): | 29.130.20 |
| ICS Code (Electrical apparatus for explosive atmospheres): | 29.260.20 |
scope:
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.
Document History
BS 787-1
March 20, 1969
Specification for Mining type flameproof gate-end boxes - Part 1: Gate-end boxes for direct-on-line motor starting (for use on 3-phase a.c. circuits up to 650 V)
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...
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