BS 787-4:1972
$102.76
Specification for mining type flameproof gate-end boxes – Gate-end boxes for drilling machines (for use on 3-phase a.c. circuits up to 650 V)
| Published By | Publication Date | Number of Pages |
| BSI | 1972 | 18 |
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 controlling one or two electrically-operated drilling machines.
NOTE The titles of the British Standards referred to in this standard are listed on page ii.
For controlling electrically operated drilling machines. Service conditions; ratings, design, construction and means of protection; test requirements.
