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 /
STD1508
BS 4533 : Pt. 1 : 1971
628.941.95:621.32 /