1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Fixed firefighting systems Gas extinguishing systemsPart 9: Physical properties and system design of gas extinguishing systems for IG-55 extinguishant (ISO 14520-14:2015, modified)BS EN 150049:2017National forewordThis
2、British Standard is the UK implementation of EN 150049:2017. It is derived from ISO 14520-14:2015. It supersedes BS EN 150049:2008, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee FSH/18/6, Gaseous Extinguishing Media and Systems.A list of organization
3、s represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 9
4、78 0 580 93868 9ICS 13.220.20Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2018.Amendments/corrigenda issued since publicationDate Text affectedBRIT
5、ISH STANDARDBS EN 150049:2017EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 150049December 2017ICS 13.220.20 Supersedes EN 150049:2008EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
6、2017 CEN Ref. No. EN 150049:2017: EAll rights of exploitation in any form and by any means reserved worldwide for CEN national MembersFixed firefighting system Gas extinguishing systems Part 9: Physical properties and system design of gas extinguishing systems for IG55 extinguishant (ISO 14520-14:20
7、15, modified)Installations fixes de lutte contre lincendie - Installations dextinction gaz - Partie 9 : Proprits physiques et conception des systmes pour agent extincteur IG-55 (ISO 14520-14:2015, modifie)Ortsfeste Brandbekmpfungsanlagen Lschanlagen mit gasfrmigen Lschmitteln Teil 9: Physikalische E
8、igenschaften und Anlagenauslegung fr Lschmittel IG-55 (ISO 14520-14:2015, modifiziert)This European Standard was approved by CEN on 25 September 2017.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
9、of a national standard without any alteration. Uptodate lists and bibliographical references concerning such national standards may be obtained on application to the CENCENELEC Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German).
10、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 national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cypr
11、us, 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and Un
12、ited Kingdom.English VersionEN 15004-9:2017 (E)European forewordThis document (EN 15004-9:2017) 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
13、 publication of an identical text or by endorsement, at the latest by June 2018, and conflicting national standards shall be withdrawn at the latest by June 2018.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be hel
14、d responsible for identifying any or all such patent rights.This document supersedes EN 150049:2008.The text of the International Standard ISO 1452014:2015 from Technical Committee ISO/TC 21 “Equipment for fire protection and firefighting” of the International Organization for Standardization (ISO)
15、has been taken over as a European 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, u
16、nder the general title Fixed firefighting systems Gas extinguishing systems: Part 1: Design, installation and maintenance; Part 2: Physical properties and system design of gas extinguishing systems for FK-5-1-12 extinguishant; Part 3: Physical properties and system design of gas extinguishing system
17、s for HCFC Blend A extinguishant; Part 4: Physical properties and system design of gas extinguishing systems for HFC 125 extinguishant; Part 5: Physical properties and system design of gas extinguishing systems for HFC 227ea extinguishant; Part 6: Physical properties and system design of gas extingu
18、ishing systems for HFC 23 extinguishant; Part 7: Physical properties and system design of gas extinguishing systems for IG-01 extinguishant; Part 8: Physical properties and system design of gas extinguishing systems for IG-100 extinguishant; Part 9: Physical properties and system design of gas extin
19、guishing systems for IG-55 extinguishant; Part 10: Physical properties and system design of gas extinguishing systems for IG-541 extinguishant. The International Standards ISO 145202 and ISO 1452011, which dealt with CF3I and HFC 236fa extinguishants, respectively, have not been implemented by CEN,
20、as CF3I is only valid for local 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 CENCENELEC Internal Regulations, the national standards organisations of the following co
21、untries are bound to implement this European Standard: 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,
22、Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.2BS EN 150049:2017EN 15004-9:2017 (E)European foreword 2European foreword 41 Scope . 52 Normative references 53 Terms and definitions . 54 Characteristics and uses . 54.1 General . 54.2 U
23、se of IG55 systems 65 Safety of personnel . 96 System design 96.1 Fill pressure . 96.2 Superpressurization 116.3 Extinguishant quantity 117 Environmental properties .113Contents PageBS EN 150049:2017EN 15004-9:2017 (E)European forewordThis document (EN 15004-9:2017) has been prepared by Technical Co
24、mmittee 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 text or by endorsement, at the latest by June 2018, and conflicting national standards shall be with
25、drawn at the latest by June 2018.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.This document supersedes EN 150049:2008.The text of the International
26、 Standard ISO 1452014:2015 from Technical Committee ISO/TC 21 “Equipment for fire protection and firefighting” of the International Organization for Standardization (ISO) has been taken over as a European Standard by Technical Committee CEN/TC 191 “Fixed firefighting systems”, the secretariat of whi
27、ch 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 systems Gas extinguishing systems: Part 1: Design, installation and maintenance; Part 2
28、: Physical properties and system design of gas extinguishing systems for FK-5-1-12 extinguishant; Part 3: Physical properties and system design of gas extinguishing systems for HCFC Blend A extinguishant; Part 4: Physical properties and system design of gas extinguishing systems for HFC 125 extingui
29、shant; Part 5: Physical properties and system design of gas extinguishing systems for HFC 227ea extinguishant; Part 6: Physical properties and system design of gas extinguishing systems for HFC 23 extinguishant; Part 7: Physical properties and system design of gas extinguishing systems for IG-01 ext
30、inguishant; Part 8: Physical properties and system design of gas extinguishing systems for IG-100 extinguishant; Part 9: Physical properties and system design of gas extinguishing systems for IG-55 extinguishant; Part 10: Physical properties and system design of gas extinguishing systems for IG-541
31、extinguishant. The International Standards ISO 145202 and ISO 1452011, which dealt with CF3I and HFC 236fa extinguishants, respectively, have not been implemented by CEN, as CF3I is only valid for local application and HFC 236fa extinguishant is only applicable for portable fire extinguishers and lo
32、cal application, respectively, which is not covered by the scope.According to the CENCENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Esto
33、nia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.4BS EN 150049:20
34、17EN 15004-9:2017 (E)1 Scope1.1 This document specifies requirements for gaseous fire-extinguishing systems, with respect to the IG-55 extinguishant. It includes details of physical properties, specification, usage and safety aspects.1.2 This documents is applicable for systems operating at nominal
35、pressures of 150 bar at 15 C, 200 bar at 15 C and 300 bar at 15 C. This does not preclude the use of other systems, although design data for other pressures are not available at this time.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document
36、and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.EN 150041:2017, Fixed firefighting systems Gas extinguishing systems Part 1: Design, installation
37、and maintenance (ISO 14520-1:2006, modified)3 Terms and definitionsFor the purposes of this document, the terms and definitions given in EN 15004-1 apply.4 Characteristics and uses4.1 GeneralIG55 is a colourless, odourless, electrically nonconductive gas with a density approximately the same as that
38、 of air.It is an inert gas mixture consisting nominally of 50 % argon and 50 % nitrogen. The mixture specification for IG-55 is as follows:a) argon percentage range (50 5) %b) nitrogen percentage (50 5) %Extinguishant IG-55 shall comply with the specification shown in Table 1. The physical propertie
39、s are shown in Table 2. IG-55 extinguishes fires by reduction of the oxygen concentration in the atmosphere of the hazard enclosure.Table 1 Specification for IG-55Component Argon NitrogenPurity 99,9 % 99,9 %Moisture 15 parts per million 10 parts per millionNOTE Only principal contaminants are shown.
40、 Other measurements can include hydrocarbons, CO, NO, NO2, CO2, O2, etc. Most are 20 106.Table 2 Physical properties of IG-55Property Units ValueMolecular mass 33,98Boiling point at 1,013 bar (absolute) C 5BS EN 150049:2017EN 15004-9:2017 (E)Property Units ValueFreezing point C Critical temperature
41、C Critical pressure bar abs Critical volume cm3/mol Critical density kg/m3Vapour pressure 20 C bar abs Liquid density 20 C kg/m3Saturated vapour density 20 C kg/m3Specific volume of superheated vapour at 1,013 bar and 20 Cm3/kg 0,708ComponentsN250 % by volumeAr 50 % by volumeNOTE IG55 is a mixture o
42、f two gases. For further details on its physical properties, refer to European Standards for the individual gases.4.2 Use of IG-55 systemsIG-55 total flooding systems can be used for extinguishing fires of all classes within the limits specified in EN 150041:2017, Clause 4.The extinguishing concentr
43、ations and design concentrations for heptane and surface class A hazards are shown in Table 4.The extinguishant requirements per volume of protected space are shown in Table 3 for various levels of concentration. These are based on methods shown in EN 150041:2017, 7.6.Table 3 IG-55 total flooding qu
44、antityTemperatureT CSpecificvapour volume S Amount of IG-55 per unit volume of protected spaceV/V (m3/m3)Design concentration (by volume)m3/kg 34 % 38 % 42 % 46 % 50 % 54 % 58 % 62 %40 0,5632 0,524 0,603 0,687 0,778 0,875 0,980 1,095 1,22135 0,5752 0,513 0,591 0,673 0,761 0,856 0,959 1,072 1,19530 0
45、,5873 0,503 0,578 0,659 0,746 0,839 0,940 1,050 1,17125 0,5994 0,493 0,567 0,646 0,731 0,822 0,921 1,029 1,14720 0,6115 0,483 0,556 0,633 0,716 0,806 0,902 1,008 1,12515 0,6236 0,474 0,545 0,621 0,702 0,790 0,885 0,989 1,10310 0,6356 0,465 0,534 0,609 0,689 0,775 0,868 0,970 1,0825 0,6477 0,456 0,52
46、4 0,598 0,676 0,761 0,852 0,952 1,0620 0,6598 0,448 0,515 0,587 0,664 0,747 0,836 0,934 1,0425 0,6719 0,440 0,506 0,576 0,652 0,733 0,821 0,918 1,02310 0,6840 0,432 0,497 0,566 0,640 0,720 0,807 0,901 1,00515 0,6960 0,424 0,488 0,556 0,629 0,708 0,793 0,886 0,98820 0,7081 0,417 0,480 0,547 0,618 0,6
47、96 0,779 0,871 0,97125 0,7202 0,410 0,472 0,538 0,608 0,684 0,766 0,856 0,95530 0,7323 0,403 0,464 0,529 0,598 0,673 0,754 0,842 0,9396 BS EN 150049:2017EN 15004-9:2017 (E)TemperatureT CSpecificvapour volume S Amount of IG-55 per unit volume of protected spaceV/V (m3/m3)Design concentration (by volu
48、me)m3/kg 34 % 38 % 42 % 46 % 50 % 54 % 58 % 62 %35 0,7444 0,397 0,456 0,520 0,588 0,662 0,741 0,828 0,92440 0,7564 0,390 0,449 0,512 0,579 0,651 0,730 0,815 0,90945 0,7685 0,384 0,442 0,504 0,570 0,641 0,718 0,802 0,89550 0,7806 0,378 0,435 0,496 0,561 0,631 0,707 0,790 0,88155 0,7927 0,373 0,429 0,
49、488 0,552 0,621 0,696 0,778 0,86760 0,8048 0,367 0,422 0,481 0,544 0,612 0,686 0,766 0,85465 0,8168 0,362 0,416 0,474 0,536 0,603 0,676 0,755 0,84270 0,8289 0,356 0,410 0,467 0,528 0,594 0,666 0,744 0,83075 0,8410 0,351 0,404 0,460 0,521 0,586 0,656 0,733 0,81880 0,8531 0,346 0,398 0,454 0,513 0,577 0,647 0,723 0,80685 0,8652 0,341 0,393 0,447 0,506 0,569 0,638 0,713 0,7957BS EN 150049:2017EN 15004-9:2017 (E)TemperatureT CSpecificvapour volu
