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BS 4293:1983

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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

Available format(s)

Hardcopy , PDF

Superseded date

15-03-1995

Language(s)

English

Published date

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

Requirements for rating, design, construction and testing of residual current operated circuit breakers having a rated voltage not exceeding 660 V, a rated current not exceeding 125 A and a rated frequency not exceeding 400 Hz. Includes circuit breakers utilizing auxiliary sources and circuit breakers with electronic circuitry.

Committee
PEL/23/1
DevelopmentNote
Supersedes 81/31957 DC, 84/24252 DC and BS 4293(1968). (06/2005)
DocumentType
Standard
Pages
20
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

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