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BS 4533 : Pt. 1 : 1971 : Specification for electric luminaires (lighting fittings)- pt.1 : general requirements and tests - Section 1.7 : provision for earthing - London British Standards institution 1971 - 3p.

STD1508

BS 4533 : Pt. 1 : 1971

628.941.95:621.32 /

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