BRITISHSTANDARD BS9251:2005 Sprinkler systems for residential and domestic occupancies Code ofpractice ICS 13.220.20 BSi Britishr Standorde
BS 9251:2005 Committeesresponsibleforthis BritishStandard Committee FSH/18，Fixed firefightingsystemsto Submittee FSH/18/2 Sprinkler systems upon which the following bodies were represented: ABI - Association of British Insurers Association of Building Engineers BASA -British Automatic Sprinkler Association BRE/LPC Laboratories British Fire Consortium British Plastics Federation British Pump Manufacturers’ Association British Fire Protection Systems Association Chief and Assistant Chief Fire Officers’ Association Copper Development Assoeiation District Surveyors’ Association Fire Sprinkler Association Home Office IFS - Institute of Fire Safety London District Surveyors Association London Fire and Emergency Planning Authority National Fire Sprinkler Network ODPM -represented by BRE ODPM- Construction Directorate Powder Actuated Systems Association Water UK Co-opted member This British Standard was published under the authority of the Standnrds Poliey and Strategy Committeo on C BSI 31 January 2005 First published as DD 251 First odition as BS 9251 April 2000 January 2005 Amendments issued since publication Amd. No. Date Comments The following BSI referenoes relate to the work on this British Standard: Committee reference FSH/18/2 ISBN 0 580 44816 9
BS 9251:2005 Contents Page Committees responsible Inside front cover Foreword Introduction 1 1 Scope 8 2 Normative references 8 3 Terms and definitions 8 4 Consultation 10 5 Design 11 6 Installation missioning and documentation 16 7 Maintenance 18 Annex A (normative) Hydraulic calculation 19 Annex B (normative) Pipework support 22 Bibliography 23 Figure 1a) Typical mains fed sprinkler system installation control details (unmetered supply) 2 Figure 1b)Typical mains fed sprinkler system installation control details-For new buildings (metered domestic supply) 3 Figure 2a) -- Typical in line fire pump fed sprinkler system installation control details (unmetered supply) 4 Figure 2b)Typical in line fire pump fed sprinkler system installation control details (metered domestic supply) 5 Figure 3a)Typical stored water and fire pump fed sprinkler system installation control details (unmetered supply) 6 Figure 3b) Typical stored water and fire pump fed sprinkler system installation control details (metered domestic supply) 7 Figure 4Typical sprinkler connection installation control and monitoring details 15 Table A.1 Pressure loss in 1 m of copper pipe for a water flow rate of 60 l/min 19 Table A.2Pressure loss in 1 m of CPVC pipe for a water flow rate of 60 1/min 19 Table A.31 Pressure loss in 1 m of steel pipe for a water flow rate of 60 1/min 20 Table A.4-Values of C for steel copper and CPVC 20 Table A.5The equivalent length of copper pipe for the pressure loss due to the bend for a water flow rate of 60 /min 20 Table A.6-Copper: equivalent lengths of pipe for fittings in metres of pipe) 21 Table A.7 -Steel: equivalent lengths of pipe for fittings (in metres of pipe) 21 Table A.8 - CPVC: equivalent lengths of pipe for fittings (in metres of pipe) 21 Table B.1 Maximum spacing of fixings for copper and stainless steel pipework 22 Table B.2 Maximum spacing of fixings for steel pipework 22 Table B.3 Maximum spacing of fixings for CPVC pipework 22 ○ BSI 31 January 2006
BS 9251:2005 Foreword This British Standard has been prepared by a Task Group from Technical Committee FSH/18/2. It supersedes DD 251:2000 which is withdrawn. It gives remendations for the design installation ponents water suppliesmissioning andmaintenance offire sprinkler systems foruse specifically inresidentialand domestic occupancies.It is intended for the use of desigrsngineersitctssvyorsconracorsnstallr authorities having jurisdietion.Sprinkler protectionforotherbuildings and industrial plant is specified in BS 5306-2 and BS EN 12845. Fire sprinkler systems for domestic and residential application are designed to provideanadditionalegreeofproteetionof lifeand propertyabove thatalready achieved by the installation of smoke and/or fire detectors and systems.This British Standard presumes that the sprinkler protection willform part of an integrated fire safety system as part of the building design. Product certifieation/inspection/testing.Users ofthisBritishStandardare advised to consider the desirability of third-party certification/inspection/testing ofproduct conformity with thisBritishStandard.Appropriate conformity attestation arrangements are describedin BS ENISO9001.Users seeking assistance in identifying appropriate conformity assessment bodies or schemes may ask BSI to forward their enquiries to the relevant association. The remendations contained in this British Standard result from the best technical information available to the mittee at the time of writing. Firefightingand lifeprotectionenpassesawidefieldofendeavourandas suchit is impracticable to cover everypossible factor or circumstance thatmight affect implementation of this British Standard.Therefore the design and installation of any system should be entrusted toa suitably qualified and experienced sprinkler contractor. Attentionis drawn to the requirements of BS 6700 with special regard to back-flow prevention and to BS 1710 for guidance on identification and marking of pipework. This publication doesnot purport to include all thenecesary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity fromlegalobligations. Attention is drawn to the requirements ofthe Water Regulations [1] [2] [3]. Summary ofpages This document prises a front cover an inside front cover pages i and i pages 1 to 23 to and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. ii ○ BSI 31 January 2005
BS9251:2005 Introduction Sprinkler systems have demonstrated their value in protecting life and property in industrial and mercial applicationsformanyyears.The advent ofsprinklersthat operateatanearlier stageinthe development ofafireplustherecognition that the largestnumbersofdeathsfromfireoccurin the home have led to the introduction of sprinkler systems specifically designed for residential and domestic occupancies. Acorrectly designed and installed sprinkler system can detect and control afire at anearly stage of development and activate an alarm.Operation of the system willrapidly reduce the rate of production of heat and smoke allowing more time for the occupants to escape to safety or be rescued. ThisBritishStandard ccordinglycovers designnstallationponentswater suppliesmaintenance and testing of residential and domestic sprinkler systems installed for life safety purposes. Residential and domestic fire sprinkler systems are systems in accordance with this standard and consist of a watersupply，ackflow preventionvalve（check valve) stopvalve priority demandvalve (where required) automatic alarm system(bothinternal and external and pipework to quick response sprinklers. The sprinklers arefitted at specified locations theappropriatesprinklertypebeingused foreachloeation. The main elements of a typicnl domesticfire sprinkler system are shown in Figure la) and Figure 1b) Figure 2a) and Figure 2b) and Figure 3a) and Figure 3b). Sprinklers operate at a pre-determined temperature to discharge water over a known area below.The flow of water thus initiated causes the sounding of an alarm. Only those sprinklers operate which are individually heated above their operating temperature by the heat from the fire. The provisionofa sprinkler systemdoesnotnegatetheneed forotherfire precautions or practical measures which may include structural fire resistance escape routes smoke or fire detectors and safe housekeeping practices.Even with theinstallation of a sprinkler system normal actions on the discovery of a fire should be taken such as immediate evncuation and the calling of the fire service. The sprinkler system should be turned off by the fire service when it is deemed safe to do so. Sprinkler system maintenance is not plex but is essential (see Clause 7). It is important that owners and occupiers pay particular attention to precautions issued by the sprinkler contractor such as the avoidance of obstructions to the sprinkler or the painting of the sprinkler head. BSI 31 January 2005 1
BS 9251 2005 民用建筑洒水系统实践守则.pdf
