DIN EN 15004-6-2008 Fixed firefighting systems - Gas extinguishing systems - Part 6 Physical properties and system design of gas extinguishing systems for HFC 23 extinguishant (ISO.pdf

1、September 2008DEUTSCHE NORM English price group 8No 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!$Qg$“146680

2、1www.din.deDDIN EN 15004-6Fixed firefighting systems Gas extinguishing systems Part 6: Physical properties and system design of gas extinguishingsystems for HFC 23 extinguishant (ISO 14520-10:2005, modified)English version of DIN EN 15004-6:2008-09Ortsfeste Brandbekmpfungsanlagen Lschanlagen mit gas

3、frmigen Lschmitteln Teil 6: Physikalische Eigenschaften und Anlagenauslegung fr Feuerlschmittel HFC 23(ISO 14520-10:2005, modifiziert)Englische Fassung DIN EN 15004-6:2008-09www.beuth.deDocument comprises 13 pagesDIN EN 15004-6:2008-09 2 National foreword This standard has been prepared by Technical

4、 Committee CEN/TC 191 “Fixed firefighting systems” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Feuerwehrwesen (Firefighting and Fire Protection Standards Committee), Technical Committee NA 031-03-04 AA Lsch-anlagen mit gasfrmige

5、n Lschmitteln und deren Bauteile. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15004-6 June 2008 ICS 13.220.20 English Version Fixed firefighting systems - Gas extinguishing systems - Part 6: Physical properties and system design of gas extinguishing systems for HFC 23 extinguishant (ISO 145

6、20-10:2005, modified) Installations fixes de lutte contre lincendie - Installations dextinction gaz - Partie 6: Proprits physiques et conception des systmes pour agent extincteur HFC 23 (ISO 14520-10:2005, modifie) Ortsfeste Brandbekmpfungsanlagen - Lschanlagen mit gasfrmigen Lschmitteln - Teil 6: P

7、hysikalische Eigenschaften und Anlagenauslegung fr Feuerlschmittel HFC 23 (ISO 14520-10:2005, modifiziert) This European Standard was approved by CEN on 26 April 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European St

8、andard 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 Management Centre or to any CEN member. This European Standard exists in three official versions (English, Fre

9、nch, 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus

10、, Czech Republic, Denmark, Estonia, Finland, 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 COMI

11、T EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15004-6:2008: EEN 15004-6:2008 (E) 2 Contents Page Foreword3 Fore

12、word of ISO 14520-10:2005 5 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 Characteristics and uses 6 4.1 General6 4.2 Use of HFC 23 systems .7 5 Safety of personnel9 6 System design10 6.1 Fill density 10 6.2 Superpressurization 10 6.3 Extinguishant quantity 10 DIN EN 15004-6:2008-0

13、9 EN 15004-6:2008 (E) 3 Foreword This document (EN 15004-6:2008) has been prepared by Technical Committee CEN/TC 191 “Fixed firefighting systems”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical t

14、ext or by endorsement, at the latest by December 2008, and conflicting national standards shall be withdrawn at the latest by December 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held resp

15、onsible for identifying any or all such patent rights. The text of the International Standard ISO 14520-10:2005 from Technical Committee ISO/TC 21 “Equipment for fire protection and fire fighting“ of the International Organization for Standardization (ISO) has been taken over as a European Standard

16、by Technical Committee CEN/TC 191 “Fixed firefighting systems“, the secretariat of which is held by BSI, with common modifications which are indicated by a straight line in the margin of the text. This European Standard will consist of the following parts, under the general title Fixed firefighting

17、systems Gas extinguishing systems: Part 1: Design, installation and maintenance (ISO 14520-1, modified) Part 2: Physical properties and system design of gas extinguishing systems for FK-5-1-12 extinguishant (ISO 14520-5, modified) Part 3: Physical properties and system design of gas extinguishing sy

18、stems for HCFC Blend A extinguishant (ISO 14520-6, modified) Part 4: Physical properties and system design of gas extinguishing systems for HFC 125 extinguishant (ISO 14520-8, modified) Part 5: Physical properties and system design of gas extinguishing systems for HFC 227ea extinguishant (ISO 14520-

19、9, modified) Part 6: Physical properties and system design of gas extinguishing systems for HFC 23 extinguishant (ISO 14520-10, modified) Part 7: Physical properties and system design of gas extinguishing systems for IG-01 extinguishant (ISO 14520-12, modified) Part 8: Physical properties and system

20、 design of gas extinguishing systems for IG-100 extinguishant (ISO 14520-13, modified) Part 9: Physical properties and system design of gas extinguishing systems for IG-55 extinguishant (ISO 14520-14, modified) Part 10: Physical properties and system design of gas extinguishing systems for IG-541 ex

21、tinguishant (ISO 14520-15, modified) The International Standards ISO 14520-2 and ISO 14520-11, which dealt with CF3I and HFC 236fa extinguishants, respectively, have not been implemented by CEN, as CF3I extinguishant is only valid for local DIN EN 15004-6:2008-09 EN 15004-6:2008 (E) 4 application an

22、d HFC 236fa extinguishant is only applicable for portable fire extinguishers and local application, respectively, which is not covered by the scope. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European

23、 Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kin

24、gdom. DIN EN 15004-6:2008-09 EN 15004-6:2008 (E) 5 Foreword of ISO 14520-10:2005 ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO tech

25、nical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely

26、 with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft I

27、nternational Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document

28、 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 14520-10 was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting, Subcommittee SC 8, Gaseous media and firefighting systems using gas. Thi

29、s second edition cancels and replaces the first edition (ISO 14520-10:2000), which has been technically revised. ISO 14520 consists of the following parts, under the general title Gaseous media fire extinguishing systems Physical properties and system design: Part 1: General requirements Part 2: CF3

30、I extinguishant Part 5: FK-5-1-12 extinguishant Part 6: HCFC Blend A extinguishant Part 8: HFC 125 extinguishant Part 9: HFC 227ea extinguishant Part 10: HFC 23 extinguishant Part 11: HFC 236fa extinguishant Part 12: IG-01 extinguishant Part 13: IG-100 extinguishant Part 14: IG-55 extinguishant Part

31、 15: IG-541 extinguishant Parts 3, 4 and 7, which dealt with FC-2-1-8, FC-3-1-10 and HCFC 124 extinguishants, respectively, have been withdrawn, as these types are no longer manufactured. DIN EN 15004-6:2008-09 EN 15004-6:2008 (E) 6 1 Scope This document gives specific requirements for gaseous fire-

32、extinguishing systems, with respect to the HFC 23 extinguishant. It includes details of physical properties, specification, usage and safety aspects and is applicable to systems operating at nominal pressure of 41 bar without nitrogen superpressurization. This does not preclude the use of other syst

33、ems. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 15004-1:2008, Fixe

34、d firefighting systems Gas extinguishing systems - Design, installation and maintenance (ISO 14520-1, modified) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 15004-1:2008 apply. 4 Characteristics and uses 4.1 General Extinguishant HFC 23 shall compl

35、y with the specification according to Table 1. HFC 23 is a colourless, almost odourless, electrically non-conductive gas with a density approximately 2,4 times that of air. The physical properties are given in Table 2. HFC 23 extinguishes fires mainly by physical means, but also by some chemical mea

36、ns. Table 1 Specification for HFC 23 Property Requirement Purity 99,6 % (mol/mol), min. Acidity 3 106by mass, max. Water content 10 106% by mass, max. Non-volatile residue 0,01 % by mass, max. Suspended matter or sediment None visible DIN EN 15004-6:2008-09 EN 15004-6:2008 (E) 7 Table 2 Physical pro

37、perties of HFC 23 Property Unit Value Molecular mass 70 Boiling point at 1,013 bar (absolute) C 82,0 Freezing point C 155,2 Critical temperature C 25,9 Critical pressure bar abs a48,36 Critical volume cm3/mol 133 Critical density kg/m3525 Vapour pressure 20 C bar abs a41,80 Liquid density 20 C kg/m3

38、806,6 Saturated vapour density 20 C kg/m3263,0 Specific volume of superheated vapour at 1,013 bar and 20 C m3/kg 0,3409 Chemical formula CHF3Chemical name Trifluoromethane a1 bar = 0,1 MPa = 105Pa; 1 MPa = 1 N/mm2. 4.2 Use of HFC 23 systems HFC 23 total flooding systems may be used for extinguishing

39、 fires of all classes within the limits specified in EN 15004-1:2008, Clause 4. The extinguishant requirements per volume of protected space are shown in Table 3 for various levels of concentration. These are based on methods given in EN 15004-1:2008, 7.6. The extinguishing concentrations and design

40、 concentrations for n-heptane and Surface Class A hazards are given in Table 4. DIN EN 15004-6:2008-09 EN 15004-6:2008 (E) 8 Table 3 HFC 23 total flooding quantity HFC 23 mass requirements per unit volume of protected space, m/V (kg/m3) This information refers only to HFC 23, and does not represent

41、any other products containing trifluoromethane as a component. Temperature T Specific vapour volume S Design concentration (by volume) C m3/kg 10 % 12 % 14 % 15 % 16 % 17 % 18 % 20 % 22 % 24 % 60 0,2428 0,4576 0,5616 0,6705 0,7268 0,7845 0,8436 0,9041 1,0297 1,1617 1,3006 55 0,2492 0,4459 0,5472 0,6

42、533 0,7081 0,7644 0,8219 0,8809 1,0032 1,1318 1,2672 50 0,2555 0,4349 0,5337 0,6371 0,6907 0,7455 0,8016 0,8591 0,9785 1,1039 1,2360 45 0,2617 0,4246 0,5211 0,6221 0,6743 0,7278 0,7826 0,8388 0,9553 1,0778 1,2067 40 0,2680 0,4146 0,5088 0,6074 0,6585 0,7107 0,7643 0,8191 0,9328 1,0524 1,1783 35 0,27

43、42 0,4052 0,4973 0,5937 0,6436 0,6947 0,7470 0,8006 0,9117 1,0286 1,1517 30 0,2803 0,3964 0,4865 0,5808 0,6296 0,6795 0,7307 0,7831 0,8919 1,0062 1,1266 25 0,2865 0,3878 0,4760 0,5682 0,6160 0,6648 0,7149 0,7662 0,8726 0,9845 1,1022 20 0,2926 0,3797 0,4660 0,5564 0,6031 0,6510 0,7000 0,7502 0,8544 0

44、,9639 1,0793 15 0,2987 0,3720 0,4565 0,5450 0,5908 0,6377 0,6857 0,7349 0,8370 0,9443 1,0572 10 0,3047 0,3647 0,4475 0,5343 0,5792 0,6251 0,6722 0,7204 0,8205 0,9257 1,0364 5 0,3108 0,3575 0,4388 0,5238 0,5678 0,6129 0,6590 0,7063 0,8044 0,9075 1,0161 0 0,3168 0,3507 0,4304 0,5139 0,5570 0,6013 0,64

45、65 0,6929 0,7891 0,8903 0,9968 5 0,3229 0,3441 0,4223 0,5042 0,5465 0,5899 0,6343 0,6798 0,7742 0,8735 0,9780 10 0,3289 0,3378 0,4146 0,4950 0,5365 0,5791 0,6227 0,6674 0,7601 0,8576 0,9601 15 0,3349 0,3318 0,4072 0,4861 0,5269 0,5688 0,6116 0,6555 0,7465 0,8422 0,9429 20 0,3409 0,3259 0,4000 0,4775

46、 0,5177 0,5587 0,6008 0,6439 0,7334 0,8274 0,9263 25 0,3468 0,3204 0,3932 0,4694 0,5089 0,5492 0,5906 0,6330 0,7209 0,8133 0,9106 30 0,3528 0,3149 0,3865 0,4614 0,5002 0,5399 0,5806 0,6222 0,7086 0,7995 0,8951 35 0,3588 0,3097 0,3801 0,4537 0,4918 0,5309 0,5708 0,6118 0,6968 0,7861 0,8801 40 0,3647

47、0,3047 0,3739 0,4464 0,4839 0,5223 0,5616 0,6019 0,6855 0,7734 0,8659 45 0,3707 0,2997 0,3679 0,4391 0,4760 0,5138 0,5525 0,5922 0,6744 0,7609 0,8519 50 0,3766 0,2950 0,3621 0,4323 0,4686 0,5058 0,5439 0,5829 0,6638 0,7489 0,8385 55 0,3826 0,2904 0,3564 0,4255 0,4612 0,4978 0,5353 0,5737 0,6534 0,73

48、72 0,8254 60 0,3885 0,2860 0,3510 0,4190 0,4542 0,4903 0,5272 0,5650 0,6435 0,7260 0,8128 65 0,3944 0,2817 0,3457 0,4128 0,4474 0,4830 0,5193 0,5566 0,6339 0,7151 0,8007 70 0,4004 0,2775 0,3406 0,4066 0,4407 0,4757 0,5115 0,5482 0,6244 0,7044 0,7887 m/V is the agent mass requirement (in kilograms pe

49、r cubic metre); i.e. mass, m, in kilograms of agent required per cubic metre of protected volume V to produce the indicated concentration at the temperature specified. V is the net volume of hazard (in cubic metres); i.e. the enclosed volume minus the fixed structures impervious to extinguishant. 100cVmcS=T is the temperature (in degrees Celsius); i.e. the design temperature in the hazard area. S is the specific volume (in cubic metres per kilogram