EN 1866-2-2014 en Mobile fire extinguishers - Part 2 Requirements for the construction pressure resistance and mechanical tests for extinguishers with a maximum allowable pressure .pdf

1、BSI Standards PublicationBS EN 1866-2:2014Mobile fire extinguishersPart 2: Requirements for the construction,pressure resistance and mechanical tests forextinguishers, with a maximum allowablepressure equal to or lower than 30 bar,which comply with the requirements of EN1866-1BS EN 1866-2:2014 BRITI

2、SH STANDARDNational forewordThis British Standard is the UK implementation of EN 1866-2:2014.Together with BS EN 1866-1:2007 and BS EN 1866-3:2013 itsupersedes BS EN 1866:2005, which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee FSH/2, Fire extinguishers.A

3、list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsL

4、imited 2014ISBN 978 0 580 79688 3ICS 13.220.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2014.Amendments issued since publicationDate Text affectedBS E

5、N 1866-2:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1866-2 May 2014 ICS 13.220.10 Supersedes EN 1866:2005English Version Mobile fire extinguishers - Part 2: Requirements for the construction, pressure resistance and mechanical tests for extinguishers, with a maximum allowable pressure

6、equal to or lower than 30 bar, which comply with the requirements of EN 1866-1 Extincteurs dincendie mobiles - Partie 2: Exigences pour la construction, la rsistance la pression et les essais mcaniques des extincteurs conformes aux exigences de lEN 1866-1, dont la pression maximale admissible est in

7、frieure ou gale 30 bar Fahrbare Feuerlscher - Teil 2: Anforderungen an die konstruktive Ausfhrung, Druckfestigkeit und mechanischen Prfungen fr Feuerlscher mit einem Hchstdruck kleiner gleich 30 bar, die den Anforderungen von EN 1866-1 entsprechen This European Standard was approved by CEN on 20 Mar

8、ch 2014. CEN members are bound to comply with the CEN/CENELEC 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 obta

9、ined on application to the CEN-CENELEC Management Centre or to any CEN 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 CE

10、N-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland

11、, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre

12、: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1866-2:2014 EBS EN 1866-2:2014EN 1866-2:2014 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .5 4 Sy

13、mbols and abbreviations 5 5 Materials .6 6 Design and prototype testing .6 6.1 Calculation design method .6 6.2 Experimental design method 6 6.3 Prototype testing .7 6.4 Macroscopic examination .8 6.5 Attached parts 8 6.6 Overfill pressure test .8 6.7 Requirements for components subject to pressure

14、8 6.8 Hose assembly and attached components .8 6.9 Propellant gas cylinders .9 7 Manufacturing 9 7.1 General requirements 9 7.2 Welded and brazed parts 9 7.3 Traceability .9 7.4 Marking 10 8 Inspection and testing during manufacturing . 10 8.1 Assemblies 10 8.2 Extinguisher bodies 10 8.3 Accessories

15、 and fittings (excluding pressure relief devices) 11 8.4 Final inspection . 11 Annex A (informative) Classification of the different parts of an extinguisher subject to internal pressure . 12 Annex B (normative) Specifications for plastics components (except hoses, pistols and nozzles) 13 B.1 Genera

16、l . 13 B.2 Requirements for plastics components subject to pressure . 13 Annex C (normative) Pressures and temperatures 16 Annex D (normative) Overfill Pressure Test 17 Annex E (normative) Test for burst pressure of hose assembly and attached components 18 Annex F (normative) Propellant gas cylinder

17、s 19 F.1 General requirements . 19 F.2 Cylinder 19 F.3 Cylinder valve 19 F.4 Marking 19 Annex G (normative) Materials - quality control documents . 21 Annex ZA (informative) Relationship between this European Standard and the essential requirements of EU Directive 97/23/EC 22 BS EN 1866-2:2014EN 186

18、6-2:2014 (E) 3 Foreword This document (EN 1866-2:2014) has been prepared by Technical Committee CEN/TC 70 “Manual means of fire fighting equipment”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identic

19、al text or by endorsement, at the latest by November 2014 and conflicting national standards shall be withdrawn at the latest by November 2014. 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 r

20、esponsible for identifying any or all such patent rights. This document, with EN 1866-1 and EN 1866-3, supersedes EN 1866:2005. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU D

21、irective 97/23/EC. For relationship with EU Directive 97/23/EC, see informative Annex ZA, which is an integral part of this document. This European Standard EN 1866 consists of the following parts under the general title “Mobile fire extinguishers”: Part 1: Characteristics, performance and test meth

22、ods; Part 2: Requirements for the construction, pressure resistance and mechanical tests for extinguishers with a maximum allowable pressure equal to or lower than 30 bar, which comply with the requirements of EN 1866-1; Part 3: Requirements for the assembly, construction and pressure resistance of

23、CO2extinguishers which comply with the requirements of EN 1866-1. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Es

24、tonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1866-2:2014EN 1

25、866-2:2014 (E) 4 1 Scope This European Standard specifies the rules of design, type testing, manufacturing and inspection during manufacturing of mobile fire extinguishers with metallic bodies, which comply with the requirements of EN 1866-1, as far as pressure resistance is concerned. This part app

26、lies to mobile fire extinguishers of which the maximum allowable pressure PS is lower than or equal to 30 bar and containing non-explosive, non-flammable, non-toxic and non-oxidizing fluids or powder. This European Standard does not apply to carbon dioxide fire extinguishers. 2 Normative references

27、The following documents, in whole or in part, are normatively referenced in this document 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 3-7:

28、2004+A1:2007, Portable fire extinguishers - Part 7: Characteristics, performance requirements and test methods EN 1866-1:2007, Mobile fire extinguishers - Part 1: Characteristics, performance and test methods EN 10204:2004, Metallic products - Types of inspection documents EN 13134, Brazing - Proced

29、ure approval EN 13445-1, Unfired pressure vessels - Part 1: General EN 13445-2, Unfired pressure vessels - Part 2: Materials EN 13445-3:2009, Unfired pressure vessels - Part 3: Design EN 13445-4, Unfired pressure vessels - Part 4: Fabrication EN 13445-5, Unfired pressure vessels - Part 5: Inspection

30、 and testing EN ISO 9017, Destructive tests on welds in metallic materials - Fracture test (ISO 9017) EN ISO 9606-1, Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1) EN ISO 9606-2, Qualification test of welders - Fusion welding - Part 2: Aluminium and aluminium alloys

31、(ISO 9606-2) EN ISO 4892-2, Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps (ISO 4892-2) EN ISO 10297, Transportable gas cylinders - Cylinder valves - Specification and type testing (ISO 10297) EN ISO 13585, Brazing - Qualification test of brazers and brazing ope

32、rators (ISO 13585) EN ISO 14732, Welding personnel - Qualification testing of welding operators and weld setters for mechanized and automatic welding of metallic materials (ISO 14732) EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials - Welding procedure spe

33、cification - Part 1: Arc welding (ISO 15609-1) BS EN 1866-2:2014EN 1866-2:2014 (E) 5 EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1)

34、 EN ISO 15614-2, Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 2: Arc welding of aluminium and its alloys (ISO 15614-2) EN ISO 4126-2, Safety devices for protection against excessive pressure - Part 2: Bursting disc safety devices (ISO 4

35、126-2) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1866-1:2007 and the following apply. 3.1 mobile fire extinguisher portable fire extinguisher with a total mass 20 kg, fitted with wheels to enable the user to manually move and operate the extingu

36、isher 3.2 pressure at maximum operating temperature (pressure experimentally measured) PTmaxpressure measured in the extinguisher after stabilization during at least 24 h at maximum operating temperature Tmax( 60 C); for cartridge operated extinguishers, the maximum pressure is the maximum pressure

37、recorded for 0,5 s during a period of 3 min, excluding the first 5 s after release of the propellant gas 3.3 maximum allowable pressure (maximum declared pressure) PS maximum pressure for which the equipment is designed, as specified by the manufacturer and which is in any case greater than or equal

38、 to PTmax3.4 bursting pressure Prmaximum pressure measured during a bursting test 3.5 fittings pressure accessories, including operating devices, filling caps, hose assemblies, pressure gauges and pressure indicators 3.6 Tmaxmaximum operating temperature declared by the manufacturer 3.7 Tminminimum

39、operating temperature declared by the manufacturer 4 Symbols and abbreviations For the purposes of this standard, the following symbols and abbreviations apply: PS maximum allowable pressure in bar PT test pressure in bar BS EN 1866-2:2014EN 1866-2:2014 (E) 6 D nominal external diameter of the body,

40、 or the largest external value of the perpendicular section of the axis, in mm Prbursting pressure in bar Tmaxmaximum operating temperature, in C PTmax pressure at maximum operating temperature, in bar Tmin minimum operating temperature, in C 5 Materials All materials shall be suitable for the inten

41、ded use and assemblies shall meet the requirements of EN 1866-1:2007, 7.2 Corrosion tests. The materials used for pressure bearing parts shall be defined in a detailed specification which forms an integrated part of the design. This specification shall contain at least detailed descriptions of: all

42、raw materials used, including the normal production tolerances; the processes used, the process parameters and the normal admissible process tolerances; the relevant required material properties after processing. The materials used for non-pressure bearing parts and accessories of extinguishers shal

43、l be compatible with the materials used for the pressure bearing parts. Plastic components shall fulfil the clauses of Annex B except hoses, pistols and nozzles. For the materials used in the type testing and type approval, inspection documents in accordance with Annex G shall be provided. All mater

44、ials used in the extinguisher assembly shall be compatible with all other components including extinguishing media. Particular attention shall be given to incompatibilities that may result in galvanic corrosion and stress corrosion. 6 Design and prototype testing 6.1 Calculation design method EN 134

45、45-3:2009, Clause 7 contains recognized calculation methods. If a body of a mobile fire extinguisher is designed in accordance with these recognized calculation methods no burst pressure test is required. If these recognized calculation methods are used for the design of the body, all relevant aspec

46、ts from EN 13445 parts 1 to 5 shall be observed. 6.2 Experimental design method The experimental design method may be used for bodies with a volume up to 200 l. If a body of a mobile fire extinguisher is designed with an experimental design method, a burst test of the body is required. The wall thic

47、kness of the body shall not be less than the wall thickness given by the formula below. BS EN 1866-2:2014EN 1866-2:2014 (E) 7 20D PTSR=for the wall thickness of the body (1) where S is the wall thickness, in millimetres; D is the external diameter of the body, in millimetres; PT is the test pressure

48、, being 1,43 x PS, in bar; R is 80 % of the minimum yield strength of the material specified by the manufacturer, in MPa. 6.3 Prototype testing 6.3.1 Pressure test 6.3.1.1 Test conditions Two bodies including accessories shall be submitted to the hydrostatic pressure test which shall be carried out

49、using apparatus that permits a regular increase of pressure at a maximum of 2 bar/s up to the moment the test pressure PT is reached. 6.3.1.2 Requirements The test pressure PT shall not be less than 1,43 times the maximum allowable pressure PS, with a minimum of 20 bar. The test pressure shall be maintained for a minimum of 30 s and the body shall remain tight. After the test, the volume of the body shall not increase by more than 1 %. 6.3.2 Burst test 6.3.2.1 Test conditions If the body is not designed in accordance with EN 13445 parts 1 to 5, one