BS-EN-15004-5-2008.pdf

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1、BRITISH STANDARD BS EN 15004-5:2008 Fixed firefighting systems Gas extinguishing systems Part 5: Physical properties and system design of gas extinguishing systems for HFC 227ea extinguishant ICS 13.220.20 ? Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:35, Uncont

2、rolled Copy, (c) BSI BS EN 15004-5:2008 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 2008Novemer BSI 2008 ISBN 978 0 580 59946 0 National foreword This British Standard is the UK implementation of EN 15004-5:2008. It supersedes BS ISO 1

3、4520-9:2006 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee FSH/18, Fixed firefighting systems, to Subcommittee FSH/18/6, Gaseous extinguishing media and systems. A list of organizations represented on this committee can be obtained on request to its

4、secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication DateComments License

5、d Copy: London South Bank University, South Bank University, 31/01/2009 03:35, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15004-5 June 2008 ICS 13.220.20 English Version Fixed firefighting systems - Gas extinguishing systems - Part 5: Physical properties and syst

6、em design of gas extinguishing systems for HFC 227ea extinguishant (ISO 14520-9:2006, modified) Installations fixes de lutte contre lincendie - Installations dextinction gaz - Partie 5 : Proprits physiques et conception des systmes pour agent extincteur HFC 227ea (ISO 14520-9:2006, modifie) Ortsfest

7、e Brandbekmpfungsanlagen - Lschanlagen mit gasfrmigen Lschmitteln - Teil 5: Physikalische Eigenschaften und Anlagenauslegung fr Feuerlschmittel HFC 227ea (ISO 14520-9:2006, modifiziert) This European Standard was approved by CEN on 26 April 2008. CEN members are bound to comply with the CEN/CENELEC

8、Internal Regulations which stipulate 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 Management Centre or to any CEN

9、 member. This European Standard 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 Management Centre has the same status as the official versions. CEN

10、members are the national standards bodies of 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, Swed

11、en, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members.

12、 Ref. No. EN 15004-5:2008: E Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:35, Uncontrolled Copy, (c) BSI EN 15004-5:2008 (E) 2 Contents Page Foreword3 Foreword of ISO 14520-9:2006 5 1 Scope 6 2 Normative references6 3 Terms and definitions .6 4 Characteristics an

13、d uses 6 4.1 General6 4.2 Use of HFC 227ea systems.7 5 Safety of personnel9 6 System design10 6.1 Fill density10 6.2 Superpressurization11 6.3 Extinguishant quantity11 BS EN 15004-5:2008 Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:35, Uncontrolled Copy, (c) BSI

14、EN 15004-5:2008 (E) 3 Foreword This document (EN 15004-5:2008) 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 tex

15、t 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 respon

16、sible for identifying any or all such patent rights. The text of the International Standard ISO 14520-9:2006 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 by

17、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 sys

18、tems 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 syste

19、ms 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 14520-9,

20、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 de

21、sign 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 extin

22、guishant (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 BS EN 15004-5:2008 Licensed Copy: London South Bank University

23、, South Bank University, 31/01/2009 03:35, Uncontrolled Copy, (c) BSI EN 15004-5:2008 (E) 4 application and 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 Regulat

24、ions, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherl

25、ands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15004-5:2008 Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:35, Uncontrolled Copy, (c) BSI EN 15004-5:2008 (E) 5 Foreword of ISO 14520-9:2006 ISO (

26、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 technical committees. Each member body interested in a subject for which a technical commi

27、ttee 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 with the International Electrotechnical Commission (IEC) on all matters of electrotec

28、hnical 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 International Standards adopted by the technical committees are circulated to the membe

29、r 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 may be the subject of patent rights. ISO shall not be held responsible for identifyin

30、g any or all such patent rights. ISO 14520-9 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. This second edition cancels and replaces the first edition (ISO 14520-9:2000), which has b

31、een 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: CF3I extinguishant Part 5: FK-5-1-12 extinguishant Part 6: HCFC Blend A extinguishant Part

32、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 15: IG-541 extinguishant Parts 3, 4 and 7, which dealt with FC-2-1-8, FC-3-1-10 and HCF

33、C 124 extinguishants, respectively, have been withdrawn, as these types are no longer manufactured. BS EN 15004-5:2008 Licensed Copy: London South Bank University, South Bank University, 31/01/2009 03:35, Uncontrolled Copy, (c) BSI EN 15004-5:2008 (E) 6 1 Scope This document gives specific requireme

34、nts for gaseous fire-extinguishing systems, with respect to the HFC 227ea extinguishant. It includes details of physical properties, specification, usage and safety aspects and is applicable to systems operating at nominal pressures of 25 bar and 42 bar with nitrogen propellant. This does not preclu

35、de the use of other systems. 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) applie

36、s. EN 15004-1:2008, Fixed 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 Extingui

37、shant HFC 227ea shall comply with the specification according to Table 1. HFC 227ea is a colourless, almost odourless, electrically non-conductive gas with a density approximately six times that of air. The physical properties are given in Table 2. HFC 227ea extinguishes fires mainly by physical mea

38、ns, but also by some chemical means. Table 1 Specification for HFC 227ea Property Requirement Purity 99,6 % by mass, min. Acidity 3 106 by mass, max. Water content 10 106 % by mass, max. Non-volatile residue 0,01 % by mass, max. Suspended matter or sediment None visible BS EN 15004-5:2008 Licensed C

39、opy: London South Bank University, South Bank University, 31/01/2009 03:35, Uncontrolled Copy, (c) BSI EN 15004-5:2008 (E) 7 Table 2 Physical properties of HFC 227ea Property Unit Value Molecular mass 170 Boiling point at 1,013 bar (absolute) C 16,4 Freezing point C 127 Critical temperature C 101,7

40、Critical pressure bar abs a 29,26 Critical volume cm3/mol 274 Critical density kg/m3 573 Vapour pressure 20 C bar abs a 3,9 Liquid density 20 C kg/m3 1 410 Saturated vapour density 20 C kg/m3 31,035 Specific volume of superheated vapour at 1,013 bar and 20 Cm3/kg 0,1374 Chemical formula CF3CHFCF3 Ch

41、emical name Heptafluoropropane a 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2. 4.2 Use of HFC 227ea systems HFC 227ea total flooding systems may be used for extinguishing fires of all classes within the limits specified in EN 15004-1:2008, Clause 4. The extinguishant requirements per volume of protecte

42、d space are given 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 concentrations for n-heptane and Surface Class A hazards are given in Table 4. BS EN 15004-5:2008 Licensed Copy: London South Bank U

43、niversity, South Bank University, 31/01/2009 03:35, Uncontrolled Copy, (c) BSI EN 15004-5:2008 (E) 8 Table 3 HFC 227ea total flooding quantity HFC 227ea mass requirements per unit volume of protected space, m/V (kg/m3) This information refers only to the product HFC-227ea, and does not represent any

44、 other products containing 1,1,1,2,3,3,3-heptafluoropropane as a component. Design concentration (by volume) Temperature T C Specific vapour volume S m3/kg 6 % 7 % 8 % 9 % 10 % 11 % 12 % 13 % 14 % 15 % 10 0,1215 0,5254 0,6196 0,7158 0,8142 0,9147 1,0174 1,1225 1,2301 1,3401 1,4527 5 0,1241 0,5142 0,

45、6064 0,7005 0,7967 0,8951 0,9957 1,0985 1,2038 1,3114 1,4216 0 0,1268 0,5034 0,5936 0,6858 0,7800 0,8763 0,9748 1,0755 1,1785 1,2839 1,3918 5 0,1294 0,4932 0,5816 0,6719 0,7642 0,8586 0,9550 1,0537 1,1546 1,2579 1,3636 10 0,1320 0,4834 0,5700 0,6585 0,7490 0,8414 0,9360 1,0327 1,1316 1,2328 1,3364 1

46、5 0,1347 0,4740 0,5589 0,6457 0,7344 0,8251 0,9178 1,0126 1,1096 1,2089 1,3105 20 0,1373 0,4650 0,5483 0,6335 0,7205 0,8094 0,9004 0,9934 1,0886 1,1859 1,2856 25 0,1399 0,4564 0,5382 0,6217 0,7071 0,7944 0,8837 0,9750 1,0684 1,1640 1,2618 30 0,1425 0,4481 0,5284 0,6104 0,6943 0,7800 0,8676 0,9573 1,

47、0490 1,1428 1,2388 35 0,1450 0,4401 0,5190 0,5996 0,6819 0,7661 0,8522 0,9402 1,0303 1,1224 1,2168 40 0,1476 0,4324 0,5099 0,5891 0,6701 0,7528 0,8374 0,9239 1,0124 1,1029 1,1956 45 0,1502 0,4250 0,5012 0,5790 0,6586 0,7399 0,8230 0,9080 0,9950 1,0840 1,1751 50 0,1527 0,4180 0,4929 0,5694 0,6476 0,7

48、276 0,8093 0,8929 0,9784 1,0660 1,1555 55 0,1553 0,4111 0,4847 0,5600 0,6369 0,7156 0,7960 0,8782 0,9623 1,0484 1,1365 60 0,1578 0,4045 0,4770 0,5510 0,6267 0,7041 0,7832 0,8641 0,9469 1,0316 1,1183 65 0,1604 0,3980 0,4694 0,5423 0,6167 0,6929 0,7707 0,8504 0,9318 1,0152 1,1005 70 0,1629 0,3919 0,46

49、21 0,5338 0,6072 0,6821 0,7588 0,8371 0,9173 0,9994 1,0834 75 0,1654 0,3859 0,4550 0,5257 0,5979 0,6717 0,7471 0,8243 0,9033 0,9841 1,0668 80 0,1679 0,3801 0,4482 0,5178 0,5890 0,6617 0,7360 0,8120 0,8898 0,9694 1,0509 85 0,1704 0,3745 0,4416 0,5102 0,5803 0,6519 0,7251 0,8000 0,8767 0,9551 1,0354 90 0,1730 0,3690 0,4351 0,5027 0,5717 0,6423 0,7145 0,7883 0,8638 0,9411 1,0202 95 0,1755 0,3638 0,4290 0,4956 0,5