BS 7071:1992
Current
The latest, up-to-date edition.
Specification for portable residual current devices
Hardcopy , PDF
English
15-09-1992
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Foreword
Committees responsible
Specification
1. Scope
2. Definitions and symbols
3. Classification
4. Rating
5. Marking and labelling
6. Service conditions
7. Design and construction
8. Type tests
9. Routine tests
Appendices
A. Relevant requirements and tests of standards for
compatible plugs, adaptors and socket-outlets
B. Function of test circuit
C. Measurement of creepage distances and clearances
Tables
1. High voltage test values
1a. Limits of temperature rises
2. Endurance test sequence
3. Torque values for screws and nuts
4. Application of glow-wire test
Figures
1. Test circuit for earth fault breaking current test
2. Tumbling barrel
3. Typical circuit diagram for a portable rcd
4. Test circuit for circuit fault current test
5. Apparatus for flexing test
6. Apparatus for pressure test
7. Ball pressure test apparatus
8. Glow wire with thermocouple
9. Glow wire test apparatus
10. Arrangements and dimensions of the electrodes for
the tracking test
11. Dispositions of portable rcd for testing test
circuit operation
Specifies requirements for portable residual current devices (portable rods) (including devices using auxiliary devices and sources with electronic circuitry) for operation on an a.c. supply and having a rated voltage no greater than 250 V a.c. single phase, a rated frequency not over 400 Hz, a rated current not over 16 A and a rated residual operating current not exceeding 30 mA. Coverage includes definitions and symbols, classification, marking and labelling, service conditions, design and construction, and rating. Also includes appendices, tables and diagrams.
| Committee |
PEL/23
|
| DevelopmentNote |
Supersedes BS 7071(1989) and 90/32904 DC (04/2005) Withdrawn in error by publisher, now has been reinstated. (04/2008) Reviewed and confirmed by BSI, October 2012. (09/2012)
|
| DocumentType |
Standard
|
| Pages |
36
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This British Standard specifies requirements for portable residual current devices (portable reds) (including devices using auxiliary sources and devices with electronic circuitry) for operation on an a.c. supply and having a rated voltage not exceeding 250 V a.c. single phase, a rated current not exceeding 16 A, a rated frequency not exceeding 400 Hz and a rated residual operating current not exceeding 30 mA. Portable reds incorporate a plug-pin portion and/or socket-outlet portion(s) and may include terminals for external flexible cords where appropriate. Portable reds with an intentional time delay are not covered by this standard.
NOTE. The titles of the publications referred to in this standard are listed on the inside back cover.
| BS 4937-4:1973 | International thermocouple reference tables Nickel -chromium/nickel - aluminium thermocouples. Type K |
| BS 3871-1:1965 | Specification for miniature and moulded case circuit-breakers Miniature air-break circuit-breakers for a.c. circuits |
| BS 6221-3:1991 | Printed wiring boards Guide for the design and use of printed wiring boards |
| BS 1363-3:1989 | 13 A plugs, socket-outlets and adaptors Specification for adaptors |
| BS 3444:1972 | Specification for blockboard and laminboard |
| BS 3203:1979 | Glossary of paper, board, pulp and related terms |
| BS 4293:1983 | Specification for residual current-operated circuit-breakers |
| BS 4714:1980 | Method for laboratory determination of density or relative density of crude petroleum and liquid petroleum products (hydrometer method) |
| BS 6217:1981 | Guide to graphical symbols for use on electrical equipment |
| BS 1362:1973 | Specification for general purpose fuse links for domestic and similar purposes (primarily for use in plugs) |
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