BS EN 14470-2-2006 Fire safety storage cabinets — Part 2 Safety cabinets for pressurised gas cylinders《防火安全存储柜 第2部分 压缩气体瓶用安全柜》.pdf

1、BRITISH STANDARDBS EN 14470-2:2006Fire safety storage cabinets Part 2: Safety cabinets for pressurised gas cylindersThe European Standard EN 14470-2:2006 has the status of a British StandardICS 13.220.40; 71.040.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54

2、g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Wed Apr 11 01:44:30 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 14470-2:2006This British Standard was published under the authority of the Standards Poli

3、cy and Strategy Committee on 31 January 2007 BSI 2007ISBN 978 0 580 49984 5National forewordThis British Standard was published by BSI. It is the UK implementation of EN 14470-2:2006. The UK participation in its preparation was entrusted to Technical Committee LBI/18, Laboratory furniture and fittin

4、gs.A list of organizations represented on LBI/18 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.Compliance with a British Standard cannot confer immunity from legal

5、 obligations.Amendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Wed Apr 11 01:44:30 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14470-2August 2006ICS 13.220.40; 71.040.10English VersionFire safety storage cabinets - P

6、art 2: Safety cabinets forpressurised gas cylindersArmoires de stockage de scurit incendie - Partie 2 :Armoires de stockage de scurit pour bouteilles de gazcomprimFeuerwiderstandsfhige Lagerschrnke - Teil 2:Sicherheitsschrnke fr DruckgasflaschenThis European Standard was approved by CEN on 21 July 2

7、006.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 alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on

8、 application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat h

9、as the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roma

10、nia,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworl

11、dwide for CEN national Members.Ref. No. EN 14470-2:2006: ELicensed Copy: Wang Bin, na, Wed Apr 11 01:44:30 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14470-2:2006 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and Definitions .5 4 Classification6 5 Constru

12、ction.6 5.1 Fire protection6 5.2 Ventilation.6 5.3 Gas cylinder restraining7 5.4 Insertion and removal of pressurised gas cylinders 7 5.5 Installation of gas pipelines (for gas cylinders in use)7 5.6 Installation of electric cables (where appropriate).7 6 Fire resistance7 7 Information to be supplie

13、d7 8 Manufacturers marking and labelling .8 Annex A (normative) Type G testing to determine fire resistance.9 A.1 Principle9 A.2 Testing apparatus and test methods.9 A.2.1 Furnace .9 A.2.2 Measuring equipment9 A.2.3 Weighing system .9 A.3 Test models9 A.3.1 Quantity and description of test models.9

14、A.3.2 Preliminary examination of the test model .10 A.4 Preparation of fire test 10 A.4.1 Safety cabinet.10 A.4.2 Installation of test model 10 A.4.3 Temperature measuring device placement.11 A.4.4 Temperature measuring device placement in the fire room .11 A.5 Fire testing procedure.11 A.6 Test rep

15、ort 11 Annex B (informative) Approval regarding construction alterations.15 Bibliography 16 Licensed Copy: Wang Bin, na, Wed Apr 11 01:44:30 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14470-2:2006 (E) 3 Foreword This document (EN 14470-2:2006) has been prepared by Technical Committee CEN/TC 332 “L

16、aboratory equipment”, the secretariat of which is held by DIN. 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 February 2007, and conflicting national standards shall be withdrawn at the latest by

17、 February 2007. EN 14470, Fire safety storage cabinets, consists of the following parts: Part 1: Safety storage cabinets for flammable liquids Part 2: Safety cabinets for pressurised gas cylinders According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followin

18、g countries are bound to implement this European Standard: Austria, Belgium, 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,

19、Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, na, Wed Apr 11 01:44:30 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14470-2:2006 (E) 4 Introduction This European standard describes the design and test criteria for safety cabinets used by laboratories to store pressurised gas cylind

20、ers at normal room temperature. The cabinet is designed and constructed to ensure that in the event of fire, the contents of the cabinet do not contribute any additional risks or spread the fire for at least 15 minutes. The cabinet is also designed and constructed to ventilate minor gas leakage with

21、in the cabinet. Testing the cabinet under fire conditions is a normative part of this standard and the procedures and interpretation of the tests are described in detail. The fire rating allows time for personnel to leave and fire fighters to enter the area before the pressurised gas cylinders becom

22、e unstable. Licensed Copy: Wang Bin, na, Wed Apr 11 01:44:30 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14470-2:2006 (E) 5 1 Scope This European standard is a product specification, giving performance requirements for fire safety cabinets used for storing pressurised gas cylinders. It is applicabl

23、e to cabinets with a total internal volume suitable to store pressurised gas cylinders with a total volume not exceeding 220 l, including cylinders of purging gases. NOTE 1 This means that up to four gas cylinders of 50 l or up to three gas cylinders of 70 l can be stored in a single cabinet. NOTE 2

24、 It is intended that the pressurised gas cylinders can be in use while in the cabinet. NOTE 3 Attention is drawn to national regulations which can apply with regard to the storage and use of pressurised gas cylinders. NOTE 4 The safety cabinet can be free standing, restrained to a wall or mounted on

25、 wheels or castors. This standard is not applicable to brick enclosures, walk-in storage rooms or cabinets which do not take their weight on their base. Requirements are given in respect to the construction of the cabinet and its capacity to resist fire conditions on the outside. A type test is incl

26、uded, which is based on the already existing fire resistance (heating curve) tests given in EN 14470-1. The tests described in this European Standard are type tests (for the storage of flammable liquids EN 14470-1 is applicable the criteria for failure are different see Annex A). 2 Normative referen

27、ces The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1363-1:1999, Fire resistance test

28、s Part 1: General requirements EN ISO 13943:2000, Fire safety Vocabulary (ISO 13943:2000) ISO 3864 (all parts), Graphical symbols - Safety colours and safety signs 3 Terms and Definitions For the purposes of this document, the terms and definitions given in EN ISO 13943:2000 and the following apply.

29、 3.1 type specimen of a design manufactured with the characteristics intended for serial production 3.2 type testing conformity testing on the basis of one or more specimens of product representative of the production Licensed Copy: Wang Bin, na, Wed Apr 11 01:44:30 GMT+00:00 2007, Uncontrolled Copy

30、, (c) BSIEN 14470-2:2006 (E) 6 4 Classification A gas cylinder cabinet shall be classified as one of the Types listed in Table 1. Table 1 Fire safety cabinet for pressurised gas cylinder Type classification Type Time taken for Tato rise by 50 K min Test according to EN 1363-1:1999 Ventilation connec

31、tion facility required G15 15 Yes Yes G30 30 Yes Yes G60 60 Yes Yes G90 90 Yes Yes a T is the temperature taken on the surface of the gas cylinder valve spanner flat. 5 Construction 5.1 Fire protection The cabinet shall be designed and constructed to ensure that, in the event of a fire, the contents

32、 of the cabinet do not contribute any additional risks or spread the fire for at least 15 minutes. 5.2 Ventilation 5.2.1 Cabinets shall be equipped with openings for inlet and exhaust air, which allows for connection of an exhaust air system to the cabinet. In a ventilated cabinet in which ventilati

33、on is taking place, with the doors closed, latched and locked, the following extraction rates shall apply: when using flammable and fire supporting gas, at least 10 air changes of the cabinets volume per hour; when using toxic gas, at least 120 air changes of the cabinets volume per hour. Under the

34、above conditions the pressure drop shall not exceed 150 Pa. The ventilation system shall maintain a lower pressure in the cabinet than in the surrounding atmosphere. Ventilation shall take place on the top and bottom of the cabinet. Design of the air circulation system within the cabinet shall ensur

35、e adequate purging from minor leakage. This shall be tested by visual inspection and by measuring the air flow and pressure drop while the cabinet is empty. NOTE The inlet pressure drop and the number of air changes have been chosen to provide purging efficiency. 5.2.2 In the event of a fire, the in

36、let and exhaust vents shall close automatically. The vents closing system shall be tested as part of the fire-resistance test in Annex A. Licensed Copy: Wang Bin, na, Wed Apr 11 01:44:30 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14470-2:2006 (E) 7 5.3 Gas cylinder restraining Within the cabinet a

37、 suitable system shall be installed to prevent gas cylinders from falling over. The system shall be suitable for the quantity and dimensions of cylinders, which can be used in accordance with the users instruction manual. 5.4 Insertion and removal of pressurised gas cylinders The cabinet shall be co

38、nstructed so that cylinders can be inserted and removed as safely as possible with minimum manual effort. For example, when cabinet bases are above floor level a ramp and/or mechanical lifting equipment can be employed, however, these shall not be made of aluminium. 5.5 Installation of gas pipelines

39、 (for gas cylinders in use) The number of pipe penetrations through the wall or roof of the cabinet shall be restricted to the minimum necessary and a maximum of 3 for each cylinder. Unused holes/penetrations shall be sealed in accordance with the users instruction manual. The three holes should hav

40、e a maximum diameter of 10 mm each. NOTE In order to maintain the fire resistance as tested and specified in accordance with Annex A (see A.4.1), it is recommended that the pipes are made from stainless steel or from a material of similar thermal conductivity. 5.6 Installation of electric cables (wh

41、ere appropriate) The number of penetrations through the wall or roof of the cabinet shall be restricted to the minimum necessary and a maximum of 2 for each cylinder. Unused holes/penetrations shall be sealed in accordance with the users instruction manual. The two holes should be a maximum diameter

42、 of 20 mm each. 6 Fire resistance The fire resistance of the cabinet for storing pressurised gas cylinders shall be determined by a type test. This type test is performed by heating the cabinet in a furnace according to the time-temperature curve described in clause 5.1.1 of EN 1363-1:1999 and measu

43、ring the temperature increase on the surface of an empty gas cylinder within the cabinet. The temperature increase on the surface of the cylinder valve spanner flat (see Figure A.1) shall not exceed 50 K. Test details are given in Annex A. 7 Information to be supplied The cabinet manufacturer shall

44、supply with the cabinet a user information manual, which includes at least the following: a) instructions for correct cabinet installation; b) maximum combined volumetric capacity of the gas cylinders stored within the cabinet; c) safety procedure instructions in the event of fire, particularly the

45、minimum time, when after a fire, the doors can be safely opened; d) instructions concerning the effect of gas pipes passing through (penetration of) the walls and roof of the cabinet, particularly the potential of reduced fire resistance; e) instructions to correctly seal the unused gas pipe feeds t

46、hrough the cabinet (penetration to the cabinets walls and roof); f) warning that storing corrosive gases will adversely affect the effectiveness of the inlet and exhaust closing mechanisms; Licensed Copy: Wang Bin, na, Wed Apr 11 01:44:30 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14470-2:2006 (E)

47、 8 g) instructions to check that installation of the ventilation system, if carried out, is correctly realised (for example by using a smoke tube); h) recommendation to undertake regular inspection and maintenance; i) suppliers declaration of conformity or the certificate(s) of conformity of a test

48、house. 8 Manufacturers marking and labelling The following which should be a legible size, shall be fixed in a visible position and on the front of the cabinet: a) fire resistance class, specified in minutes, e.g. Type G15, G30, G60 or G90; b) instruction that the door(s) shall be kept closed; c) sa

49、fety sign in accordance with ISO 3864 as warning of pressurised gas cylinders; d) name and/or trademark of the manufacturer; e) model number, year of construction and, if appropriate, serial number; f) marking of the inlet and exhaust connections to differentiate between them; g) advice to read the user instruction manual. Licensed Copy: Wang Bin, na, Wed Apr 11 01:44:30 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14470-2:2006 (E) 9 Annex A (normative) Type G testing to determine fire resistance A.1 Principle The safety cabinet is expo