BS 5345 Parts 1 to 12. Code of practice for the selection, installation and maintenance of electrical apparatus for use in potentially explosive atmospheres.
2.
CP1013:1965 Earthing — methods for earthing electrical systems.
3.
Intrinsic Safety BS 5501 Parts 7 & 9 Electrical apparatus for potentially explosive atmospheres: Part 7 Intrinsic Safety ‘i’. Part 9 Intrinsically safe systems.
4.
Flameproof Enclosures BS 5501 Part 5 Electrical apparatus for potentially explosive atmospheres. Flameproof enclosure ‘d’.