BS 229:1957
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification. Flameproof enclosure of electrical apparatus
Hardcopy , PDF
11-01-2003
English
03-30-1957
Electrical apparatus enclosures for use in flammable or explosive gases or vapours. Design and construction, tables the grouping of gases and vapours and the corresponding permissible gap dimensions for flanged joints. Treatment of control spindles, shafts, conductors, etc. Appendices detail requirements for certification as flameproof. (See also BS 5501-5).
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