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immediate downloadReleased: 1971-03-26
BS 787-3:1971
Specification for mining type flameproof gate-end boxes Gate-end boxes with lighting transformers
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| Standard number: | BS 787-3:1971 |
| Pages: | 18 |
| Released: | 1971-03-26 |
| ISBN: | 0 580 06079 9 |
| Status: | Standard |
DESCRIPTION
BS 787-3:1971
This standard BS 787-3:1971 Specification for mining type flameproof gate-end boxes is classified in these ICS categories:
- 29.260.20 Electrical apparatus for explosive atmospheres
- 29.130.20 Low voltage switchgear and controlgear
This British Standard covers flameproof gate-end boxes designed primarily for use, in the mining industry, on a 3-phase a.c. system having a line voltage of up to 650 V, to provide electrical supply for single-phase lighting circuits.
Service conditions; ratings; design and construction; means of protection; test requirements.