BS EN 12845-2004+A2-2009 固定式消防系统.自动喷水系统设计,安装和维修.pdf
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1、BRITISH STANDARD BS EN 12845:2004 Fixed firefighting systems Automatic sprinkler systems Design, installation and maintenance ICS 13.220.20 Incorporating Corrigendum August 2009 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2、- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - w - - - - - EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12845:2004+A2 April 2009 ICS 13.220.20 Supersedes EN 12845:2004 English Version Fixed firefighting systems - Automatic sprinkler systems - Design, installation and maintenan
3、ce Installations fixes de lutte contre lincendie - Systmes dextinction automatiques du type sprinkleur - Conception, installation et maintenance Ortsfeste Brandbekmpfungsanlagen - Automatische Sprinkleranlagen - Planung, Installation und Instandhaltung This European Standard was approved by CEN on 1
4、6 April 2004 and includes Amendment 1 approved by CEN on 22 February 2009 and Amendment 2 approved by CEN on 22 February 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard
5、without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other lang
6、uage made by translation under the respons bility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finla
7、nd, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KO
8、MITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12845:2004+A2:2009: E EN 12845:2004+A2:2009 (E) 2 Contents page Foreword .9 Introduction . 10 1Scope . 12 2N
9、ormative references . 12 3Terms and definitions . 13 4Contract planning and documentation . 20 4.1General . 20 4.2Initial considerations 21 4.3Preliminary or estimating stage 21 4.4Design stage 21 4.4.1 General . 21 4.4.2 Summary schedule . 22 4.4.3 Installation layout drawings . 22 4.4.4 Water supp
10、ly 25 5Extent of sprinkler protection 27 5.1Buildings and areas to be protected . 27 5.1.1 Permitted exceptions within a building 27 5.1.2 Necessary exceptions 28 5.2Storage in the open air . 28 5.3Fire resistant separation 28 5.4Protection of concealed spaces 28 5.5Height difference between the hig
11、hest and lowest sprinklers . 28 6Classification of occupancies and fire hazards . 29 6.1General . 29 6.2Hazard classes 29 6.2.1 Light Hazard - LH 29 6.2.2 Ordinary Hazard - OH . 29 6.2.3 High Hazard - HH . 30 6.3Storage . 31 6.3.1 General . 31 6.3.2 Storage Configuration 32 7Hydraulic design criteri
12、a 34 7.1LH, OH and HHP 34 7.2High Hazard Storage - HHS 35 7.2.1 General . 35 7.2.2 Ceiling or roof protection only 35 7.2.3 Intermediate level in-rack sprinklers 36 7.3Pressure and flow requirements for pre-calculated systems 38 7.3.1 LH and OH systems 38 7.3.2 HHP and HHS systems without in-rack sp
13、rinklers 39 8Water supplies. 42 8.1General . 42 8.1.1 Duration . 42 BS EN 12845:2004+A2:2009 EN 12845:2004+A2:2009 (E) 3 8.1.2 Continuity . 42 8.1.3 Frost protection . 42 8.2Maximum water pressure . 42 8.3Connections for other services . 43 8.4Housing of equipment for water supplies 44 8.5Test facil
14、ity devices 44 8.5.1 At control valve sets . 44 8.5.2 At water supplies . 45 8.6Water Supply test 45 8.6.1 General . 45 8.6.2 Storage tank and pressure tank supplies . 45 8.6.3 Town main, booster pump, elevated private reservoir and gravity tank supplies . 45 9Type of water supply . 45 9.1General .
15、45 9.2Town mains 46 9.2.1 General . 46 9.2.2 Boosted mains . 46 9.3Storage tanks . 46 9.3.1 General . 46 9.3.2 Water volume . 46 9.3.3 Refill rates for full capacity tanks 48 9.3.4 Reduced capacity tanks . 48 9.3.5 Effective capacity of tanks and dimensions of suction chambers 49 9.3.6 Strainers . 5
16、1 9.4Inexhaustible sources - Settling and suction chambers . 51 9.5Pressure tanks . 54 9.5.1 General . 54 9.5.2 Housing 54 9.5.3 Minimum capacity (water) 54 9.5.4 Air pressure and contents 54 9.5.5 Charging with air and water . 55 9.5.6 Control and safety equipment . 55 9.6Choice of water supply . 5
17、6 9.6.1 Single water supplies 56 9.6.2 !Superior single water supplies“ . 56 9.6.3 Duplicate water supplies 57 9.6.4 Combined water supplies . 57 9.7Isolation of water supply 57 10Pumps. 58 10.1General . 58 10.2Multiple pump arrangements . 58 10.3Compartments for pumpsets . 58 10.3.1General . 58 10.
18、3.2Sprinkler protection 59 10.3.3Temperature . 59 10.3.4Ventilation 59 10.4Maximum temperature of water supply 59 10.5Valves and accessories 59 10.6Suction conditions 60 10.6.1General . 60 10.6.2Suction pipe . 60 10.7Performance characteristics 64 10.7.1Pre-calculated systems - LH and OH 64 10.7.2Pr
19、e-calculated systems - HHP and HHS with no in-rack sprinklers 65 10.7.3Calculated systems . 65 10.7.4Pressure and water capacity of boosted town mains . 65 BS EN 12845:2004+A2:2009 EN 12845:2004+A2:2009 (E) 4 10.7.5Pressure switches 66 10.8Electrically driven pumpsets . 66 10.8.1General . 66 10.8.2E
20、lectricity supply 66 10.8.3Main switchboard 66 10.8.4Installation between the main switchboard and the pump controller . 67 10.8.5Pump controller. 67 10.8.6Monitoring of pump operation . 67 10.9Diesel engine driven pumpsets . 68 10.9.1General . 68 10.9.2Engines 68 10.9.3Cooling system . 68 10.9.4Air
21、 filtration 68 10.9.5Exhaust system . 68 10.9.6Fuel, fuel tank and fuel feed pipes 69 10.9.7Starting mechanism 69 10.9.8Electric starter motor batteries 70 10.9.9Battery chargers 71 10.9.10Siting of batteries and chargers 71 10.9.11Starter alarm indication . 71 10.9.12Tools and spare parts 71 10.9.1
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- BS EN 12845-2004+A2-2009 固定式消防系统.自动喷水系统设计 安装和维修 12845 2004 A2 2009 固定 消防系统 自动 喷水 系统 设计 安装 维修
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