BS 5311-4:1976
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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. circuit-breakers of rated voltage above 1 kV Type tests and routine tests
Hardcopy
10-01-2021
English
11-28-1980
Type tests including mechanical, temperature rise, dielectric and making and breaking tests. Routine tests include voltage, resistance of the main circuit and mechanical operating tests. Appendices include records and reports, determination of test quantities, examples of calculations and atmospheric correction factors.
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