BS 5253:1975
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 for a.c. disconnectors (isolators) and earthing switches of rated voltage above 1 kV
Hardcopy
12-31-1990
English
08-29-1975
Definitions, rating, design, construction, type and routine tests, rules for selection, transport, erection and maintenance.
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