BS 4293:1983
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 residual current-operated circuit-breakers
Hardcopy , PDF
15-03-1995
English
29-07-1983
Foreword
Committees responsible
Specification
1 Scope
2 Definitions and symbols
3 General
4 Ratings
5 Marking
6 Service conditions
7 Design and construction
8 Tests
9 Condition of the circuit-breaker after test
Appendices
A Preferred ratings for voltage, current, tripping
current and frequency
B Function of the test device
C Transformer balance test
D Application of residual current-operated circuit-
breakers
Tables
1 Table deleted
2 Terminal capacities
3 Test cables
4 High voltage test values
5 Endurance test sequence
6 Prospective current values
7 Voltage ratings
Figures
1 Test circuit for circuit fault current test
2 Earth fault breaking current test
3 Typical circuit diagram for a residual current-
operated circuit-breaker
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