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
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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
Intended to promote compatibility between transducers, recorders, indicators and data transmission systems of different manufacture which are being used in systems to control and monitor below ground activities and conditions.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes 84/78553 DC and BS 5754(1980) (08/2005) Reviewed and confirmed by BSI, January 2011. (12/2010)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This British Standard specifies requirements for apparatus incorporating signal circuits intended to be certified intrinsically safe for use in coal mines and which have inputs or outputs, as appropriate, in the form of d.c. voltage analogue signals (type V), or state signals (type S).
It specifies those electrical input and output characteristics of signal sources and signal loads necessary to achieve operational compatibility and also to simplify design for compliance with the relevant standards for intrinsic safety.
Section 1 specifies the general requirements applicable to both types of signals. Sections 2 and 3 contain specific requirements for voltage analogue and state signals respectively.
NOTE The titles of the publications referred to in this standard are listed on the inside back cover.
| BS 6709:1986 | Specification for interconnection of electrical apparatus, constructed to two or more British Standards, for use in mines susceptible to firedamp |
| BS 6704:1996 | Code of practice for selection, installation and maintenance of intrinsically safe electrical equipment in coal mines |
| BS 6556-1:1985 | Low speed digital signals for use in coal mines. Specification for optical coupling |
| BS 6182-1:1982 | Intrinsically safe power supplies for use in coal mines Specification for d.c. power supplies |
| BS 6182-2:1982 | Intrinsically safe power supplies for use in coal mines Specification for a.c. power supplies |
| BS 5501-9:1982 | Electrical apparatus for potentially explosive atmospheres Specification for intrinsically safe electrical systems \'i\' |
| BS 5501-7:1977 | Electrical apparatus for potentially explosive atmospheres Intrinsic safety \'i\' |
| BS 6182-3:1982 | Intrinsically safe power supplies for use in coal mines Specification for rechargeable battery units |
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