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BS 7346-5:2005

Current
Current

The latest, up-to-date edition.

Components for smoke and heat control systems Functional recommendations and calculation methods for smoke and heat exhaust ventilation systems, employing time-dependent design fires. Code of practice
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

03-31-2005

Committees responsible
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and units
4 General recommendations
5 Recommended calculation procedure
6 Further acceptability criteria
7 Interaction with other fire protection systems and other
  building systems
Annex A (normative) Supporting documentation
Annex B (informative) Example of an iterative calculation
        procedure
Annex C (informative) Plugholing
Annex D (informative) Factors influencing the choice of
        time-dependent design fires
Bibliography

Provides functional recommendations and guidance on the calculation method for smoke and heat exhaust ventilation systems (SHEVS) for time-dependent design fires. A variety of building types is addressed.

This British Standard gives functional recommendations and guidance on the calculation method for smoke and heat exhaust ventilation systems (SHEVS) for time-dependent design fires. A variety of building types is addressed.

For a pre-determined critical time, this British Standard can be used to determine required performance of a SHEVS needed to avoid the onset of a significant danger. Or, for a pre-determined SHEVS, this British Standard can be used to determine the time available between ignition and onset of significant danger.

This British Standard uses accepted and authoritative methods to define some design parameters, e.g. the time needed for safe evacuation or attendance time of the fire-fighting services. This information can be sought from other sources when generating the overall fire-safety concept for a specific building project.

Many of the detailed calculation procedures, and most of the danger criteria defining the boundary between success and failure, are the same for time-dependent design fires as for steady-state design fires, and it is essential that this British Standard be used in conjunction with BS 7346-4.

Committee
FSH/25
DevelopmentNote
Supersedes 03/117591 DC. (04/2005) Reviewed and confirmed by BSI, October 2012. (09/2012)
DocumentType
Standard
Pages
42
PublisherName
British Standards Institution
Status
Current
Supersedes

13/30264663 DC : 0 BS 7346-7 - COMPONENTS FOR SMOKE AND HEAT CONTROL SYSTEMS - PART 7: CODE OF PRACTICE ON FUNCTIONAL RECOMMENDATIONS AND CALCULATION METHODS FOR SMOKE AND HEAT CONTROL SYSTEMS FOR COVERED CAR PARKS
NFPA 204 : 2018 SMOKE AND HEAT VENTING
PD 7974-2:2002 Application of fire safety engineering principles to the design of buildings Spread of smoke and toxic gases within and beyond the enclosure of origin (Sub-system 2)
BS 7346-7:2006 Components for smoke and heat control systems Code of practice on functional recommendations and calculation methods for smoke and heat control systems for covered car parks
BS 7346-8:2013 Components for smoke control systems Code of practice for planning, design, installation, commissioning and maintenance
BS 5908-1:2012 Fire and explosion precautions at premises handling flammable gases, liquids and dusts Code of practice for precautions against fire and explosion in chemical plants, chemical storage and similar premises
06/30112774 DC : DRAFT APR 2006 BS 7346-7 - COMPONENTS FOR SMOKE AND HEAT CONTROL SYSTEMS - PART 7: CODE OF PRACTICE ON FUNCTIONAL RECOMMENDATIONS AND CALCULATION METHODS FOR SMOKE AND HEAT CONTROL SYSTEMS FOR COVERED CAR PARKS
13/30266935 DC : 0 BS 7346-8 - COMPONENTS FOR SMOKE CONTROL SYSTEMS - PART 8: CODE OF PRACTICE FOR PLANNING, DESIGN, INSTALLATION, COMMISSIONING AND MAINTENANCE
BS 7346-7:2013 Components for smoke and heat control systems Code of practice on functional recommendations and calculation methods for smoke and heat control systems for covered car parks

BS EN 12259-1:1999 Fixed firefighting systems. Components for sprinkler and water spray systems Sprinklers
BS EN 12845:2015 Fixed firefighting systems. Automatic sprinkler systems. Design, installation and maintenance

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