BS 5839-5:1988
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Fire detection and alarm systems for buildings Specification for optical beam smoke detectors
Hardcopy , PDF
01-05-2009
English
31-03-1988
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Foreword
Committees responsible
Specification
Section one. General
1. Scope
2. Definitions
Section two. Requirements
3. Requirements
4. Marking and data
Section three. Tests
5. Testing
6. Reproducibility
7. Thermal turbulence
8. Repeatability
9. Rapid change in obscuration
10. Slow changes in obscuration
11. Variation of supply voltage
12. Optical path length dependence
13. Tolerance to beam misalignment
14. Dry heat
15. Cold
16. Vibration
17. Shock
18. Damp heat (steady state) and insulation resistance
19. Electromagnetic fields
20. Electrostatic discharge
21. Electrical transients
22. Stray light
23. Impact
24. SO2 corrosion
25. Fire sensitivity
Appendix
A. Determination of the response threshold value
Tables
1. Test schedule
2. Voltage conditions for specimens with internal
power supplies
3. Voltage conditions for specimens with external
power supplies
4. Response threshold values and distances between
opposed components for fire sensitivity testing
5. Minimum resolutions for optical density filters
Figures
1. Shock test apparatus
2. Stray light test apparatus
3. Fire sensitivity test room plan
Requirements, methods of test and performance criteria for detectors with ranges between 1 m and 100 m.
| Committee |
FSH/12
|
| DevelopmentNote |
Supersedes 86/43810 DC (08/2005)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
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