BS 5754:1987
Current
The latest, up-to-date edition.
Specification for electrical analogue and state signals for use in coal mines
Hardcopy , PDF
English
27-02-1987
Foreword
Committees responsible
Specification
Section one. General
1. Scope
2. Definitions
3. Design
4. Power supplies
5. Interconnection via multicore cables
6. Connection to non-intrinsically safe apparatus
7. Marking
8. Documentation
Section two. D.C. voltage analogue signals (type V)
9. Signal output circuit
10. Signal measuring circuit
Section three. State signals (type S)
11. Signal output circuit
12. Signal detection circuit
Appendix
A. Examples of safety couplers used where signals
are routed through multicore cables
Figure
1. Arrangement of detection diodes
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