DIN EN 13565-2-2009 Fixed firefighting systems - Foam systems - Part 2 Design construction and maintenance(includes Corrigendum AC 2009) English version of DIN EN 13565-2 2009-09《固.pdf

1、September 2009DEUTSCHE NORM English price group 19No part of this standard 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!$Y_g“15460

2、68www.din.deDDIN EN 13565-2Fixed firefighting systems Foam systems Part 2: Design, construction and maintenance AC:2009)English version of DIN EN 13565-2:2009-09Ortsfeste Brandbekmpfungsanlagen Schaumlschanlagen Teil 2: Planung, Einbau und Wartung (enthlt Berichtigung AC:2009)Englische Fassung DIN E

3、N 13565-2:2009-09SupersedesDIN 14493-4:1977-07 andDIN 14493-100:2002-09www.beuth.deDocument comprises 52 pages(includes CorrigendumDIN EN 13565-2:2009-09 National foreword This standard has been prepared by Technical Committee CEN/TC 191 “Fixed firefighting systems” (Secretariat: BSI, United Kingdom

4、). The responsible German body involved in its preparation was the Normenausschuss Feuerwehrwesen (Firefighting and Fire Protection Standards Committee), Technical Committee NA 031-03-02 AA Schaum- und Pulverlschanlagen NOTE Correction factor fcin the European Standard corresponds to correction fact

5、or fk in the German version of the standard. Amendments This standard differs from DIN EN 14493-4:1977-07 and DIN 14493-100:2002-09 as follows: a) The scope has been extended to include further typical applications, e.g. tank bunds, aircraft hangars, fuel transfer areas, warehouses, marine jetties,

6、switchgear, cable tunnels, plastic recycling and application of foam to flammable liquefied gas spills. b) Clause 3 “Terms and definitions” has been extended. c) Requirements for foam systems, low expansion, medium expansion and high expansion, have been extended and combined in one standard. d) Cor

7、rection factors for the calculation of the application rates have been supplemented and modified. e) The requirement for the fire detection/alarm system design has been extended. f) Requirements for the use of deluge and foam enhanced sprinkler systems have been added. g) Requirements for commission

8、ing, testing and periodic inspections have been supplemented and modified. Previous editions DIN 14493: 1965-03 DIN 14493-1: 1965-03, 1977-07 DIN 14493-2: 1977-07 DIN 14493-3: 1977-07 DIN 14493-4: 1977-07 DIN 14493-100: 2002-09 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13565-2 May 2009

9、+AC July 2009 ICS 13.220.20 English version Fixed firefighting systems Foam systems Part 2: Design, constructionand maintenance Installations fixes de lutte contre lincendie Systmes mulseurs Partie 2: Calcul, installation et maintenance Ortsfeste Brandbekmpfungsanlagen Schaumlschanlagen Teil 2: Plan

10、ung, Einbau und Wartung EN 13565-2:2009 was approved by CEN on 2007-05-24 and Corrigendum AC on 22 July 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any altera

11、tion. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the ManagementCentre or to any CEN member. The European Standards exist in three official versions (English, French, German). A version in any other language made by translation

12、under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, H

13、ungary, 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 NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG Management-Ce

14、ntre: 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 13565-2:2009 + AC:2009 EContents page Foreword 5Introduction . 61 Scope 82 Normative references 83 Terms and definitions . 84 Foam extingu

15、ishing systems . 124.1 General 124.1.1 General requirements 124.1.2 Environmental considerations . 134.1.3 Planning 134.1.4 Documentation . 134.1.5 Supplementary manual foam fire fighting provisions . 144.1.6 Equipment 144.2 Water supply 154.2.1 Water demand 154.2.2 Operating time 154.2.3 Quality of

16、 water 154.2.4 Power supply for water pumps 164.3 Foam concentrate 164.3.1 General 164.3.2 Foam concentrate supply low and medium expansion foams 164.3.3 Foam concentrate pumps . 174.3.4 Supplementary external connections 174.4 Foam proportioners . 174.5 Pipework . 184.5.1 Water and foam solution pi

17、pework 184.5.2 Foam concentrate piping 184.5.3 Non Newtonian foam concentrate 184.5.4 Piping of aspirated foam (including that for subsurface foam applications) 184.5.5 Marking . 194.6 Foam discharge outlets and generators . 194.7 Operation and control systems 194.7.1 Detection of fires 194.7.2 Rele

18、ase of fixed foam extinguishing systems 194.7.3 Alarms . 205 Design . 205.1 Application rates 205.2 Flammable liquid storage tanks, bunds and process areas . 225.2.1 General 225.2.2 Number of foam discharge outlets 245.2.3 Fixed cone roof tanks 245.2.4 Floating roof tanks. 275.2.5 Bunded/diked areas

19、 and process areas 296 Foam sprinkler and deluge systems 316.1 Deluge systems 316.1.1 Deluge applications . 316.1.2 Deluge limitations 316.1.3 Deluge design 31DIN EN 13565-2:2009-09 EN 13565-2:2009+AC:2009 (E)26.2 Foam enhanced sprinkler systems 316.2.1 Foam enhanced sprinkler applications . 316.2.2

20、 Foam enhanced sprinkler limitations 316.2.3 Foam enhanced sprinkler design 326.3 Foam concentrate 326.3.1 Aspirated foams . 326.3.2 Non aspirated foams . 326.4 Foam proportioning . 326.5 Drain and flushing connections . 327 High expansion foam systems . 357.1 General 357.2 Foam concentrate 367.3 Eq

21、uipment 367.4 System design . 367.5 Equipment location considerations . 377.6 Personnel safety 377.7 Discharge rate (total flooding systems) 387.8 Discharge time (total flooding systems) . 388 Marine loading and unloading docks 398.1 Water supplies . 398.2 Foam concentrate 398.3 Foam water monitors

22、398.4 Below dock foam systems 399 Aircraft hangars . 409.1 General 409.2 Hangar partitioning 409.3 Fire detection . 409.4 System design philosophy . 409.5 System duration . 429.6 Foam and water pumps. 429.7 Acceptable application methods . 429.8 Foam types . 429.9 Monitors 429.10 Foam-water deluge s

23、ystems 429.11 Medium expansion systems (Type 3 hangars only) 439.12 High expansion systems. 439.13 Headlines 439.14 Commissioning tests 4310 Liquefied flammable gases (LNG/LPG) . 4410.1 General 4410.1.1 Liquefied Natural Gas (LNG) . 4410.1.2 Liquefied Petroleum Gas (LPG) 4410.2 Controlled burn-off 4

24、410.3 Un-ignited spills . 4410.4 Fire detection . 4410.5 Foam properties . 4410.6 Foam proportioning system . 4510.7 Application techniques . 45page DIN EN 13565-2:2009-09 EN 13565-2:2009+AC:2009 (E)311.2.4 Tests . 4611.2.5 Completion certificate 4611.3 The periodic inspection and testing of foam sy

25、stems. 4711.3.1 General . 4711.3.2 Inspections 4711.4 Shut-down 4911.5 Maintenance . 4911.6 Alterations 49Bibliography 5011 Commissioning, testing, and periodic inspections . 4611.1 Instruction of operating personnel 4611.2 Commissioning 4611.2.1 General 4611.2.2 Visual inspection 4611.2.3 Pressure

26、tests . 46page DIN EN 13565-2:2009-09 EN 13565-2:2009+AC:2009 (E)4Foreword This document (EN 13565-2:2009+AC:2009) has been prepared by Technical Committee CEN/TC 191 “Fixed systems”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, ei

27、ther by publication of an identical text or by endorsement, at the latest by November 2009, and conflicting national standards shall be withdrawn at the latest by November 2009. EN 13565 Fixed firefighting systems Foam systems consists of the following parts: Part 1: Requirements and test methods fo

28、r components Part 2: Design, construction and maintenance According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: : Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,

29、 France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. DIN EN 13565-2:2009-09 EN 13565-2:2009+AC:2009 (E)5firefightingIntroduction It has been

30、 assumed by the drafting of this European Standard, that the application of the contained requirements shall be given to qualified and experienced personnel only. It is considered to apply to new foam systems and so it is not considered to apply to existing foam systems. Foam systems are designed to

31、 provide a homogeneous layer of bubbles, of aerated fire fighting foam concentrate and water, over the surface of flammable liquids (Class B) and/or combustible materials (Class A). The layer of bubbles will suppress the release of flammable vapours, exclude air, and cool the fuel and hot surfaces.

32、In addition, High Expansion Foam may be used to provide total flooding of enclosures with 3 dimensional hazards of either Class A and/or Class B fuels. Prior to the selection and design of foam systems the hazards should undergo a risk assessment; however this is outside the scope of this European S

33、tandard. Applications for foam systems can be diverse so no one type of foam system can be prescribed. This European Standard provides guidance for the design of various foam systems available to persons with knowledge and experience in determining the selection of foam fire extinguishing systems wh

34、ich will be effective in protecting specific hazard configurations. The requirement for foam systems derives from risk assessment by those competent to carry out such assessments which are outside the scope of this European Standard. Nothing in this European Standard is intended to restrict new tech

35、nologies or alternative arrangements, provided the level of safety prescribed by this European Standard is not lowered. Typical uses of the various types of foam system are set out in Table 1 below: Table 1 Typical uses of the various types of foam system Hazard Low expansion Medium expansion High e

36、xpansion(indoors) Flammable liquid storage tanks Yes No No Tank bunds/collecting areas Yes Yes Yes + LNG/LPG Process areas Yes Yes Yes Aircraft hangers Yes 25 mm) the foam system(s) shall be capable of operating for the duration specified in this European Standard. For spill fire hazards (fuel depth

37、 35 C) may reduce the fire fighting performance and require higher application rates - consult the foam concentrate manufacturer. DIN EN 13565-2:2009-09 EN 13565-2:2009+AC:2009 (E)154.2.4 Power supply for water pumps Using fixed pumps and where availability and reliability are critical, consideratio

38、n should be given to dual sources of water supply. These may be provided by two or more pumps whose power sources are such that 100% duty is available should one source fail. Mobile pumping units may also be considered. 4.3 Foam concentrate 4.3.1 General Foam concentrates shall be tested and verifie

39、d to be in accordance with EN 1568. Specific requirements are also given for low-expansion foams suitable for water-miscible fuels. NOTE 1 Foams tested as low expansion foams according to EN 1568 Parts 3 and 4 will achieve a performance classification based on its extinguishing and burnback properti

40、es. For a low expansion foam for water-immiscible fuels (EN 1568-3), there are three extinguishing classes (I, II, III) and four burnback levels (A, B, C, D), performance classification IA being the highest classification. For a low expansion foam for water-miscible fuels (EN 1568-4), there are two

41、extinguishing classes (I, II) and three burnback levels (A, B, C). It is important to notice that not all foams are suitable for use with sea water and that the performance classification might be different when using fresh water or sea water. In a foam extinguishing system the foam proportioner and

42、 foam concentrate shall be compatible in accordance with EN 13565-1. The viscosity properties of the foam concentrate determined according to EN 1568 shall therefore be within the approved viscosity range for the proportioner according to EN 13565-1. Foam concentrates of different types and manufact

43、ure should not be mixed unless compatibility has been determined by test and a test report provided. In the event of a change of foam concentrate, the performance classification of the new foam shall be equal to or better than the replaced foam or the minimum performance data specified in designing

44、the system. The necessary performance data of the foam extinguishing system shall be kept on file. The quantity of foam concentrate provided shall be sufficient to ensure that the minimum specified operation time is achieved. NOTE 2 In addition, appropriate contingency planning is required to provid

45、e significant additional stocks of foam concentrate for post fire security. WARNING The extinguishing effect of premixed solutions, in storage vessels or pipework, may be reduced considerably depending on the storage time and the quality of water used. Polymeric film forming foams should not be pre-

46、mixed unless written confirmation of suitability has been provided by the foam manufacturer. Foam concentrates shall be stored within the temperature limits given by the foam concentrate supplier. The quality of the stored foam concentrate should be checked using the guidelines described in Clause 1

47、1. 4.3.2 Foam concentrate supply low and medium expansion foams Reserve supplies of foam concentrate shall be made available to re-activate the foam system in line with the hazard risk assessment for the site. DIN EN 13565-2:2009-09 EN 13565-2:2009+AC:2009 (E)16The foam concentrate quantity V in lit

48、res shall be calculated as follows: 100maxZtQV = (1) where Qmaxis the maxium water demand, in litres per minute; Z is the proportioning rate of the foam concentrate in percent; t is the operating time, in minutes. Continuous proportioning of the foam concentrate, for the complete operation time, shall be provided. The foam concentrate storage tanks shall be provided with a contents verification device, d