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.