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BS 5501-1:1977
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BS 5501-1:1977 Electrical apparatus for potentially explosive atmospheres. General requirements
standard by BSI Group, 12/30/1977
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Full Description
Construction and testing of electrical apparatus to ensure that it will not cause an explosion of the surrounding atmosphere. Definitions, grouping and classification of electrical apparatus, temperatures, marking.Partially replaced by BS EN 50014:1993.