Overview
BS 8491:2008 describes a method for assessment of the fire integrity of large diameter power cables for use as components for smoke and heat control systems as given in BS 7346-6, and certain other active fire safety systems. It is applicable to cables of rated voltage not exceeding 600/1 000 V and of overall diameter greater than 20 mm.
The test method in BS 8491:2008 includes subjecting the cable under test to radiation via direct impingement corresponding to a constant temperature attack of 842 °C, to direct mechanical impacts corresponding to a force of approximately 10 N, and to direct application of a water jet simulating a water fire fighting jet. The test method given in this standard includes three different test durations to allow testing of cables intended for different applications.
BS 8491:2008 contains:
- Normative references
- Terms and definitions
- Test chamber
- Apparatus
- Verification procedure for the source of heat
- Test specimens
- Test procedure
- Test report
It is emphasized that fire tests do not assess a fire hazard, nor can the results of fire tests alone guarantee safety. They only provide information to assist in the assessment of the suitability of a cable for a given application.
Bibliographic Detail
| Standard Number | BS 8491:2008 |
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| Title | Method for assessment of fire integrity of large diameter power cables for use as components for smoke and heat control systems and certain other active fire safety systems |
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| Status | Current |
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| Publication Date | 31 January 2008 |
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| Cross References | BS EN 60529:1992, BS EN 60584-1, BS EN 60695-4, BS EN ISO 13943, IEC 60269-3, BS 7346-6, BS EN 50200:2006, BS EN 50362:2003, BS EN 61034-1:2005 |
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| Draft Superseded | 06/30152609 DC |
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| Descriptors | Electric cables, Power cables, Fire tests, Fire resistance, Fire safety, Electric cable systems, Smoke control, Smoke extraction (buildings), Heating tests, Mechanical testing, Test equipment, Test specimens |
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| ICS | 13.220.40 (Ignitability and burning behaviour of materials and products)
29.060.20 (Cables)
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| Committee | GEL/20/18 |
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| ISBN | 978 0 580 57269 2 |
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| Publisher | BSI |
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| Format | A4 |
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| Delivery | YES |
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| Pages | 28 |
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| File Size | 327 KB |
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| Price | £ 114.00 |
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