1、September 2008DEUTSCHE NORM English price group 9No 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!$Qf“1466798
2、www.din.deDDIN EN 15004-3Fixed firefighting systems Gas extinguishing systems Part 3: Physical properties and system design of gas extinguishingsystems for HCFC Blend A extinguishant (ISO 14520-6:2006, modified)English version of DIN EN 15004-3:2008-09Ortsfeste Brandbekmpfungsanlagen Lschanlagen mit
3、 gasfrmigen Lschmitteln Teil 3: Physikalische Eigenschaften und Anlagenauslegung fr Feuerlschmittel HCFC/A(ISO 14520-6:2006, modifiziert)Englische Fassung DIN EN 15004-3:2008-09www.beuth.deDocument comprises 14 pagesDIN EN 15004-3:2008-09 2 National foreword This standard has been prepared by Techni
4、cal 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 gasfrm
5、igen Lschmitteln und deren Bauteile. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15004-3 June 2008 ICS 13.220.20 English Version Fixed firefighting systems - Gas extinguishing systems - Part 3: Physical properties and system design of gas extinguishing systems for HCFC Blend A extinguishant
6、 (ISO 14520-6:2006, modified) Installations fixes de lutte contre lincendie - Installations dextinction gaz - Partie 3: Proprits physiques et conception des systmes pour agent extincteur HCFC, mlange A (ISO 14520-6:2006, modifie) Ortsfeste Brandbekmpfungsanlagen - Lschanlagen mit gasfrmigen Lschmitt
7、eln - Teil 3: Physikalische Eigenschaften und Anlagenauslegung fr Feuerlschmittel HCFC/A (ISO 14520-6:2006, 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 th
8、is 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 member. This European Standard exists in three official versions
9、 (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 members are the national standards bodies of Austria, Belgium, Bu
10、lgaria, 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDA
11、RDIZATION COMIT 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 15004-3:2008: EEN 15004-3:2008 (E) 2 Contents Page
12、Foreword3 Foreword of ISO 14520-6:2006 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 HCFC Blend A systems.7 5 Safety of personnel9 6 System design10 6.1 Fill density 10 6.2 Superpressurization 11 6.3 Extinguishant quantity 11 DIN
13、 EN 15004-3:2008-09 EN 15004-3:2008 (E) 3 Foreword This document (EN 15004-3:2008) 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
14、 of an identical text 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 shal
15、l not be held responsible for identifying any or all such patent rights. The text of the International Standard ISO 14520-6:2006 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 E
16、uropean Standard 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 Fi
17、xed firefighting 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
18、 extinguishing systems 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 extingui
19、shant (ISO 14520-9, 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 prop
20、erties and system 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 syst
21、ems for IG-541 extinguishant (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 15004-3:2008-09 EN 15004-3:2008 (E)
22、 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 Regulations, the national standards organizations of the following countries are bound to implem
23、ent this European 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 a
24、nd the United Kingdom. DIN EN 15004-3:2008-09 EN 15004-3:2008 (E) 5 Foreword of ISO 14520-6:2006 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
25、through ISO technical 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 coll
26、aborates closely 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 St
27、andards. Draft International 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
28、of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 14520-6 was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting, Subcommittee SC 8, Gaseous media and firefighting systems
29、 using gas. This second edition cancels and replaces the first edition (ISO 14520-6:2000), 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 requiremen
30、ts Part 2: CF3I 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 extin
31、guishant Part 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 15004-3:2008-09 EN 15004-3:2008 (E) 6 1 Scope This document gives specific requirements for
32、gaseous fire-extinguishing systems, with respect to the HCFC Blend A 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 preclude th
33、e 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) applies. EN
34、 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 Extinguishant
35、 HCFC Blend A shall comply with the specification according to Table 1. The tolerances of its components shall be in accordance with Table 2. HCFC Blend A is a colourless, electrically non-conductive gas with a citrus-like odour and a density approximately 11 times that of air. The physical properti
36、es are given in Table 3. HCFC Blend A extinguishes fires mainly by physical means, but also by some chemical means. Table 1 Specification for HCFC Blend A Property Requirement Purity 99,6 % by mass, min. Acidity 3 104by mass, max. Water content 10 104% by mass, max. Non-volatile residue 0,01 % by ma
37、ss, max. Suspended matter or sediment None visible DIN EN 15004-3:2008-09 EN 15004-3:2008 (E) 7 Table 2 HCFC Blend A component specification Component Tolerance (by mass) CHCl2CF3 0,5 % CHClF2 0,8 % CHClFCF3 0,9 % C10H16 0,5 % Table 3 Physical properties of HCFC Blend A Property Unit Value Molecular
38、 mass 92,9 Boiling point at 1,013 bar (absolute) C 38,3 Freezing point C 10 a4 h LC50is the concentration lethal to 50 % of a rat population during a 4 h exposure. 6 System design 6.1 Fill density The fill density of the container shall not exceed the values given in Tables 7 and 8 for 25 bar and 42
39、 bar systems, respectively. Table 7 Storage container characteristics for HCFC Blend A 25 bar Property Unit Value Maximum fill density kg/m3900 Maximum container working pressure at 50 C bar a 35 Superpressurization at 20 C bar a25 Reference should be made to Figure 1 for further data on pressure/te
40、mperature relationships. a1 bar = 0,1 MPa = 105Pa; 1 MPa = 1 N/mm2. Table 8 Storage container characteristics for HCFC Blend A 42 bar Property Unit Value Maximum fill density kg/m3900 Maximum container working pressure at 50 C bar a53 Superpressurization at 20 C bar a42 Reference should be made to F
41、igure 2 for further data on pressure/temperature relationships. a1 bar = 0,1 MPa = 105Pa; 1 MPa = 1 N/mm2. Exceeding the maximum fill density may result in the container becoming “liquid full”, with the effect that an extremely high rise in pressure occurs with small increases in temperature, which
42、could adversely affect the integrity of the container assembly. The relationships between pressure and temperature are shown in Figures 1 and 2 for maximum fill density. DIN EN 15004-3:2008-09 EN 15004-3:2008 (E) 11 6.2 Superpressurization Containers shall be superpressurized with nitrogen with a mo
43、isture content of not more than 60 106% by mass to an equilibrium pressure of (25,1025+) bar and (1,2042+) bar at a temperature of 20 C (see Clause 1 for exception). 6.3 Extinguishant quantity The quantity of extinguishant shall be the minimum required to achieve the design concentration within the
44、hazard volume at the minimum expected temperature, determined using Table 4 and the method according to EN 15004-1:2008, 7.6. The design concentrations shall be those specified for relevant hazards in Table 5, including a 1,3 safety factor on the extinguishing concentration. Consideration should be
45、given to increasing this for particular hazards, while seeking advice from the relevant authority. Key X temperature, C Y pressure, bar Figure 1 Temperature/pressure graph for HCFC Blend A Superpressurized with nitrogen to 25 bar at 20 C DIN EN 15004-3:2008-09 EN 15004-3:2008 (E) 12 Key X temperature, C Y pressure, bar Figure 2 Temperature/pressure graph for HCFC Blend A Superpressurized with nitrogen to 42 bar at 20 C DIN EN 15004-3:2008-09
