1、April 2016 English price group 38No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.220.20!%QB“2469731www.din.deDIN
2、 EN 12845Fixed firefighting systems Automatic sprinkler systems Design, installation and maintenance;English version EN 12845:2015 + AC:2016,English translation of DIN EN 12845:2016-04Ortsfeste Brandbekmpfungsanlagen Automatische Sprinkleranlagen Planung, Installation und Instandhaltung;Englische Fa
3、ssung EN 12845:2015 + AC:2016,Englische bersetzung von DIN EN 12845:2016-04Installations fixes de lutte contre lincendie Systmes dextinction automatique du type sprinkleur Conception, installation et maintenance;Version anglaise EN 12845:2015 + AC:2016,Traduction anglaise de DIN EN 12845:2016-04Supe
4、rsedesDIN EN 12845:2015-09www.beuth.deDocument comprises 210 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.04.16 DIN EN 12845:2016-04 2 A comma is used as the decimal marker. National foreword This document (EN 12845:2015 + A
5、C:2016) has been prepared by Technical Committee CEN/TC 191 “Fixed firefighting systems” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was DIN-Normenausschuss Feuerwehrwesen (DIN Standards Committee Firefighting and Fire Protection), Working Committee NA
6、 031-03-03 AA Wasserlschanlagen und Bauteile. This document is the revised version of DIN EN 12845:2009. CEN/TC 191 develops standards on components for sprinkler systems. Some of these (e.g. sprinkler systems as in DIN EN 12259-1) are covered by Mandate M/109 under the EU Construction Products Dire
7、ctive and must therefore meet the “essential requirements” of the relevant standard according to the German Bauproduktengesetz (Construction Products Act) and bear the CE mark. CEN/TC 191 is also responsible for developing rules for the design and installation of automatic fire extinguishing systems
8、 These standards do not cover construction products but installations, which are not included in the scope of the German Construction Products Act, and which are therefore not permitted to bear the CE mark under the EU Construction Products Directive. In addition, the German law does not stipulate
9、that sprinkler or water spray systems be designed and installed in accordance with standards. With the publication of European Standard EN 12845 there is now a uniform technical rule for the design and installation of sprinkler systems in Europe. EN 12845 contains general rules in the form of minimu
10、m requirements, and a higher level of protection (than that prescribed here) can be provided at any time. Particular, deviating requirements for specific sprinkler systems, e.g. due to local conditions or specific risks, are not specified in this standard. In addition to being extremely effective fo
11、r fighting fires, sprinkler systems installed according to the rules of technology acknowledged in Germany are very reliable. For instance, according to statistics of the German loss prevention company “VdS Schadenverhtung GmbH”, the long-term average success rate of sprinkler systems installed acco
12、rding to VdS guidelines is higher than 98 %. Because of their effectiveness and reliability, in Germany such sprinkler systems are also accepted by the building inspectorate, meaning that under certain circumstances some required construction measures may be dispensed with if such a sprinkler system
13、 is present. In Germany this is regulated in various special Lnder regulations such as the Industriebaurichtlinie MIndBauRL (Model Directive on structural fire protection in industrial buildings). It should be noted that other standards and guidelines are based on a different safety philosophy than
14、that represented in the present standard. If single elements are taken from such technical rules and combined with the requirements of this standard, the level of protection which this standard is intended to provide might not be reached. It is not intended that the requirements of this standard be
15、combined with those in other technical rules. If requirements are modified or replaced, compliance with the standard is no longer given. The specifications of this standard do not take the place of those derived from legal or insurance requirements. German insurance guidelines may place stricter req
16、uirements on the availability and effectiveness of sprinkler systems, for instance as regards the design and testing of components, the organization, equipment and qualification of installation companies, the monitoring, frequency and scope of periodic inspections, etc. On the other hand, such guide
17、lines may prescribe less strict requirements regarding operating times, the pipe array, or maintenance measures. DIN EN 12845:2016-04 3 NOTE It can be assumed that sprinkler systems installed in accordance with German insurance guidelines provide the level of protection described in the present stan
18、dard. This document is a complete revision of DIN EN 12845:2009-07. The start and finish of text introduced or altered by corrigendum is indicated in the text by tags nullnull. Amendments This standard differs from DIN EN 12845:2009-07 as follows: a) Clause 1 “Scope” has been rendered more precise;
19、b) in Clause 2 “Terms and definitions”, 3.39 “life safety system” has been deleted and 3.39 “discharge coefficient” has been added; c) in Subclause 4.4.2 “Summary schedule”, reference is now made to Annex O; d) Subclause 4.4.4.5 “Storage tank” has been revised; e) Subclause 4.4.4.6 “Pressure tank” h
20、as been revised; f) in Subclause 6.3.2 “Storage configuration”, Table 2 has been revised with regard to hazard classes and separation clearance dimensions; g) in Subclause 7.2.2 “Ceiling or roof protection only”, requirements for clearances have been revised; h) in Subclause 7.2, Tables 4 and 5, the
21、 design criteria for roof and ceiling sprinklers have been revised; i) in Subclause 7.3.2.1, Table 7, the pressure and flow requirements have been revised; j) in Subclause 8.5.1, general requirements for pressure/flow measuring results have been included; k) the former Subclause 9.2.2 “Boosted mains
22、 has been deleted; l) in Subclause 9.3.5, Table 12, requirements for suction pipe inlet clearances with vortex inhibitor have been included; m) in Subclause 10.7.2, Figure 7a “Typical pump curve for pre-calculated system” has been added; n) Subclause 10.8.2 “Electricity supply” has been revised; o)
23、 in Subclause 11.2.2, Table 18, the requirements for the maximum water delivery time have been revised; p) in Subclause 14.4, Table 37b “Colour code for sprinklers” has been added; q) Subclause 20.1.1 “Introduction” has been added; r) Subclause 20.3.4.2.2 “Flow test where no pump is installed” has b
24、een added; s) Clause 21 “Third party inspection” has been added; t) Annex A (normative) “Classification of typical hazards” has been revised; u) Annex F (normative) “Additional measures to improve system reliability and availability” has been added; v) Annex M (informative) “Independent certificatio
25、n body” has been added; w) Annex N (normative) “Control Mode Specific Application Sprinklers: CMSA” has been added; DIN EN 12845:2016-04 4 x) Annex O (informative) “Example of P y) Annex P (normative) “ESFR sprinkler protection” has been added; z) the Bibliography has been revised. This standard dif
26、fers from DIN EN 12845:2015-09 as follows: a) in Subclause 7.2.2.1, the reference to Annex P has been deleted; b) in Subclause 10.1, last paragraph, the term “pumpsets” has been supplemented by “horizontal” to read “horizontal pumpsets”; c) in Subclause 10.7.3, the term “pumpset” has been replaced b
27、y “pump”; d) in Subclause 10.9.13.2 “Site commissioning test”, some minor modifications have been made; e) in Subclause 20.3.5.3, the term “dismantled” has been deleted. Previous editions DIN 14489: 1985-05 DIN EN 12845: 2009-07, 2015-09 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12845 Jun
28、e 2015 + AC January 2016 ICS 13.220.20 Supersedes EN 12845:2004+A2:2009 English Version Fixed firefighting systems - Automatic sprinkler systems - Design, installation and maintenance Installations fixes de lutte contre lincendie Systmes dextinction automatique du type sprinkleur Conception, install
29、ation et maintenance Ortsfeste Brandbekmpfungsanlagen Automatische Sprinkleranlagen Planung, Installation und Instandhaltung EN 12845:2015 was approved by CEN on 2014-12-20 and Corrigendum AC:2016 on 2016-01-20. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulat
30、e the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Stan
31、dard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the nat
32、ional standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Sl
33、ovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved
34、 worldwide for CEN national Members. Ref. No. EN 12845:2015 + AC:2016 E EN 12845:2015 (E) 2 Contents Page European foreword . 12 Introduction 13 1 Scope . 15 2 Normative references . 15 3 Terms and definitions 16 4 Contract planning and documentation . 23 4.1 General . 23 4.2 Initial considerations
35、23 4.3 Preliminary or estimating stage 23 4.4 Design stage 24 4.4.1 General . 24 4.4.2 Summary schedule . 24 4.4.3 Installation layout drawings 25 4.4.4 Water supply . 28 5 Extent of sprinkler protection 30 5.1 Buildings and areas to be protected. 30 5.1.1 General . 30 5.1.2 Permitted exceptions wit
36、hin a building 30 5.1.3 Necessary exceptions 30 5.2 Storage in the open air . 30 5.3 Fire resistant separation 30 5.4 Protection of concealed spaces 31 5.5 Height difference between the highest and lowest sprinklers . 31 6 Classification of occupancies and fire hazards 31 6.1 General . 31 6.2 Hazard
37、 classes 31 6.2.1 General . 31 6.2.2 Light Hazard LH . 31 6.2.3 Ordinary Hazard OH 31 6.2.4 High Hazard HH 32 6.3 Storage . 33 6.3.1 General . 33 6.3.2 Storage Configuration 33 7 Hydraulic design criteria 36 7.1 LH, OH and HHP 36 7.2 High Hazard Storage HHS . 37 7.2.1 General . 37 7.2.2 Ceiling or r
38、oof protection only 37 7.2.3 Intermediate level in-rack sprinklers 38 7.3 Pressure and flow requirements for pre-calculated systems 40 7.3.1 LH and OH systems 40 7.3.2 HHP and HHS systems without in-rack sprinklers 40 8 Water supplies 42 8.1 General . 42 8.1.1 Duration . 42 8.1.2 Continuity 42 8.1.3
39、 Frost protection 43 DIN EN 12845:2016-04 EN 12845:2015 (E) 3 8.2 Maximum water pressure . 43 8.3 Connections for other services . 44 8.4 Housing of equipment for water supplies . 44 8.5 Test facility devices . 44 8.5.1 General . 44 8.5.2 At pump house 45 8.5.3 At control valve sets . 45 8.6 Water s
40、upply test . 45 8.6.1 General . 45 8.6.2 Storage tank and pressure tank supplies . 46 8.6.3 Town main, booster pump, elevated private reservoir and gravity tank supplies . 46 9 Type of water supply . 46 9.1 General . 46 9.2 Town mains 46 9.3 Storage tanks . 46 9.3.1 General . 46 9.3.2 Water volume .
41、 47 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 50 9.3.6 Strainers . 51 9.4 Inexhaustible sources settling and suction chambers 51 9.5 Pressure tanks . 54 9.5.1 General . 54 9.5.2 Housing 54 9.5.3
42、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 9.6 Choice of water supply . 55 9.6.1 Single water supplies 55 9.6.2 Superior single water supplies 56 9.6.3 Duplicate water supplies 56 9.6.4 Combined water s
43、upplies . 56 9.7 Isolation of water supply 57 10 Pumps . 57 10.1 General . 57 10.2 Multiple pump arrangements . 57 10.3 Compartments for pumpsets . 58 10.3.1 General . 58 10.3.2 Sprinkler protection 58 10.3.3 Temperature . 58 10.3.4 Ventilation 58 10.4 Maximum temperature of water supply . 58 10.5 V
44、alves and accessories 58 10.6 Suction conditions 59 10.6.1 General . 59 10.6.2 Suction pipe . 59 10.7 Performance characteristics 62 10.7.1 Pre-calculated systems LH and OH 62 10.7.2 Pre-calculated systems HHP and HHS with no in-rack sprinklers 63 10.7.3 Calculated systems . 64 10.7.4 Pressure and w
45、ater capacity of boosted town mains . 65 10.7.5 Pressure switches . 65 10.8 Electrically driven pumpsets 65 10.8.1 General . 65 DIN EN 12845:2016-04 EN 12845:2015 (E) 4 10.8.2 Electricity supply 65 10.8.3 Main switchboard 66 10.8.4 Installation between the main switchboard and the pump controller .
46、67 10.8.5 Pump controller 67 10.8.6 Monitoring of pump operation . 67 10.9 Diesel engine driven pumpsets . 67 10.9.1 General . 67 10.9.2 Engines 68 10.9.3 Cooling system . 68 10.9.4 Air filtration 68 10.9.5 Exhaust system. 68 10.9.6 Fuel, fuel tank and fuel feed pipes 68 10.9.7 Starting mechanism .
47、69 10.9.8 Electric starter motor batteries . 70 10.9.9 Battery chargers . 70 10.9.10 Siting of batteries and chargers 70 10.9.11 Starter alarm indication 71 10.9.12 Tools and spare parts 71 10.9.13 Engine tests and exercising 71 11 Installation type and size . 72 11.1 Wet pipe installations . 72 11.
48、1.1 General . 72 11.1.2 Protection against freezing 72 11.1.3 Size of installations 72 11.2 Dry pipe installations . 73 11.2.1 General . 73 11.2.2 Size of installations 73 11.3 Alternate installations 73 11.3.1 General . 73 11.3.2 Size of installations 74 11.4 Pre-action installations 74 11.4.1 Gene
49、ral . 74 11.4.2 Automatic detection system 74 11.4.3 Size of installations 75 11.5 Subsidiary dry pipe or alternate extension 75 11.5.1 General . 75 11.5.2 Size of subsidiary extensions . 75 11.6 Subsidiary water spray extension. 75 12 Spacing and location of sprinklers . 75 12.1 General . 75 12.2 Maximum area of coverage per sprinkler . 76 12.3 Minimum distance between sprinklers . 77 12.4 Location of sprinklers in relation to building construction 78 12.5 Inter
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