BS EN 14540-2014 Fire-fighting hoses Non-percolating layflat hoses for fixed systems《消防软管 固定系统用非渗滤吹塑软管》.pdf

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1、BSI Standards PublicationBS EN 14540:2014Fire-fighting hoses Non-percolating layflat hoses forfixed systemsBS EN 14540:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 14540:2014. Itsupersedes BS EN 14540:2004 which is withdrawn.The UK participation in its p

2、reparation was entrusted to TechnicalCommittee FSH/17/8, Hydrants, hoses and associated water deliveryequipment.A 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. Use

3、rs are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 78802 4ICS 13.220.10; 23.040.70Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the aut

4、hority of theStandards Policy and Strategy Committee on 31 July 2014.Amendments issued since publicationDate Text affectedBS EN 14540:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14540 July 2014 ICS 13.220.10; 23.040.70 Supersedes EN 14540:2004+A1:2007English Version Fire-fighting hoses

5、- Non-percolating layflat hoses for fixed systems Tuyaux de lutte contre lincendie - Tuyaux aplatissables tanches pour systmes fixes Feuerlschluche - Flachschluche fr Wandhydranten This European Standard was approved by CEN on 28 May 2014. CEN members are bound to comply with the CEN/CENELEC Interna

6、l 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-CENELEC Management Centre or to any CE

7、N 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-CENELEC Management Centre has the same status as the official versi

8、ons. 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, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, P

9、oland, 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: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitati

10、on in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14540:2014 EBS EN 14540:2014EN 14540:2014 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 Materials and construction of hose .6 5 Dimensions, tolera

11、nces and maximum mass .6 5.1 Inside diameter and maximum mass .6 5.2 Length and tolerances on length .6 6 Performance requirements of finished hose 7 6.1 Hydrostatic requirements .7 6.1.1 Deformation under normal working pressure 7 6.1.2 Deformation under proof pressure 7 6.1.3 Minimum burst pressur

12、e .7 6.1.4 Kink pressure .8 6.2 Adhesion .8 6.3 Accelerated ageing 8 6.4 Low temperature flexibility .8 6.5 Hot surface resistance 8 6.6 Resistance to kinking 8 7 Frequency of testing .9 8 Marking .9 Annex A (normative) Frequencies of testing (type test and production test) . 10 Annex B (informative

13、) Frequencies of testing (batch test) . 11 Bibliography . 12 BS EN 14540:2014EN 14540:2014 (E) 3 Foreword This document (EN 14540:2014) has been prepared by Technical Committee CEN/TC 192 “Fire and Rescue Service Equipment”, the secretariat of which is held by BSI. This European Standard shall be gi

14、ven the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2015 and conflicting national standards shall be withdrawn at the latest by January 2015. Attention is drawn to the possibility that some of the elements of this document may

15、 be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14540:2004+A1:2007. This revised standard now references EN 15889:2011, Fire-fighting hoses - Test methods, which includes the test methods fo

16、rmerly in annexes within EN 14540. This standard is based on liaison with CEN/TC 191 “Fixed fire-fighting systems” and should be read in conjunction with EN 671-2. Requirements for semi-rigid hoses for use with fire-fighting pumps and vehicles are given in EN 1947; those semi-rigid hoses for fixed s

17、ystems are given in EN 694. 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, Estonia, Finland, Former Yugoslav Republ

18、ic 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 14540:2014EN 14540:2014 (E) 4 Introduction A fixed sy

19、stem is a manually operated unit installed in a building in order to make it possible for the occupants to control and extinguish a small fire. The system consists of fixed units mounted on walls or in cabinets permanently connected to a water supply. The fixed units are composed of a coupling, a va

20、lve with a pressure indicator, a layflat hose with its support and a nozzle. The fixed systems are specified in EN 671-2, Fixed firefighting systems Hose systems Part 2: Hose systems with lay-flat hose. BS EN 14540:2014EN 14540:2014 (E) 5 1 Scope This European Standard specifies the requirements and

21、 test methods for non-percolating layflat hoses for fixed systems. The hoses are intended for use at a maximum working pressure of 1,5 MPa over a range of inside diameters from 25 mm to 52 mm. This European Standard applies exclusively to hoses for fire-fighting purposes intended for use at a minimu

22、m ambient temperature of 20 C in normal conditions, and a minimum temperature of 30 C in colder climatic conditions and a maximum ambient temperature of +60 C. Hoses conforming to this standard should be used with fire hose couplings conforming to the relevant national standards for couplings. NOTE

23、1 Hoses for use at ambient temperatures below 20 C can be supplied if they have been tested at the specified lower temperature in accordance with 6.4 and identified by their marking in Clause 8 f). Hoses in marine applications and/or aggressive environments to be used with wall hydrants as specified

24、 in EN 671-2 can conform to the requirements of this standard. NOTE 2 All pressures are gauge pressures and are expressed in megapascals1. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For d

25、ated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 15889:2011, Fire-fighting hoses - Test methods EN ISO 1307, Rubber and plastics hoses - Hose sizes, minimum and maximum inside diameters, and

26、tolerances on cut-to-length hoses (ISO 1307) EN ISO 1402, Rubber and plastics hoses and hose assemblies - Hydrostatic testing (ISO 1402) EN ISO 4671, Rubber and plastics hoses and hose assemblies - Methods of measurement of the dimensions of hoses and the lengths of hose assemblies (ISO 4671) EN ISO

27、 8033, Rubber and plastics hoses - Determination of adhesion between components (ISO 8033) EN ISO 8330, Rubber and plastics hoses and hose assemblies - Vocabulary (ISO 8330) 11 MPa = 10 bar BS EN 14540:2014EN 14540:2014 (E) 6 3 Terms and definitions For the purposes of this document, the terms and d

28、efinitions given in EN ISO 8330 and the following apply. 3.1 layflat hose hose with a soft wall which, when unpressurized internally, collapses to such an extent that the inner faces of the inside diameter make contact and the hose takes up a flat cross-sectional appearance 3.2 jacket circular woven

29、 seamless reinforcement 4 Materials and construction of hose The hose shall be uncovered. It shall consist of the following: a) a water impermeable rubber or plastics lining; b) a synthetic fibre jacket. 1) The hose jacket can be dyed or pigmented. 2) The hose manufacturer should weave the jacket an

30、d assemble the jacket and lining. The lining should be as smooth as possible so as to minimize friction. 5 Dimensions, tolerances and maximum mass 5.1 Inside diameter and maximum mass The inside diameter of the hose and tolerances when measured in accordance with EN ISO 4671 shall conform to the req

31、uirements given in Table 1. The mass per metre length for a length of hose of at least 2 m, without couplings fitted, shall not exceed the value given in Table 1. Table 1 Inside diameter, tolerances on inside diameter and maximum mass per unit length Inside diameter Tolerances for inside diameter Ma

32、ximum mass per unit length mm mm kg/m 25 0,5 to +1,0 0,18 38 0,24 40/42/45 0,5 to +1,5 0,29 50/51/52 0,35 5.2 Length and tolerances on length The total length of hose supplied shall be stated in metres. Tolerance on length shall be in accordance with EN ISO 1307. NOTE The coil or flake size, and the

33、 test procedures to determine these can, if considered necessary, be stated by the purchaser. BS EN 14540:2014EN 14540:2014 (E) 7 6 Performance requirements of finished hose 6.1 Hydrostatic requirements 6.1.1 Deformation under normal working pressure The dimensional stability of the hose when tested

34、 in accordance with EN ISO 1402, shall conform to the requirements of Table 2 and Table 3. The initial test pressure shall be 0,07 MPa, and the final test pressure shall be 1,0 MPa. The twisting line shall be clockwise. Table 2 Change in length and external diameter Tolerances % Change in length 0,0

35、 to +5,0 Change in external diameter 0,0 to +5,0 Table 3 Twisting line Inside diameter Maximum twist mm /m 25 120 38 to 52 inclusive 100 6.1.2 Deformation under proof pressure A proof pressure hold test shall be carried out on three hose lengths each of 1 m in accordance with EN ISO 1402. The proof

36、pressure shall be as given in Table 4 and on examination during the test, the test pieces shall not show any evidence of leakage, cracking, abrupt distortion or other signs of failure. Table 4 Working pressures, proof pressure and minimum burst pressure Pressure MPa Normal working pressure 1,0 Maxim

37、um working pressure a1,5 Proof pressure b2,25 Minimum burst pressure 4,5 aTo accommodate pump close down pressures, the maximum working pressure may be exceeded by a maximum of 0,2 MPa for short periods only. bA statistically based sampling plan may be used to provide evidence that hoses in a given

38、batch conform to the proof pressure requirement. 6.1.3 Minimum burst pressure Three test pieces of length 1 m shall be subjected to the burst pressure test as specified in EN ISO 1402. No individual test piece shall burst at less than the burst pressure given in Table 4. BS EN 14540:2014EN 14540:201

39、4 (E) 8 It is not necessary to increase the pressure above the minimum burst value to burst the hose. It is sufficient to increase the pressure to the required minimum burst pressure stated in Table 4 in order to pass this test requirement. This should be stated in the Test Report. 6.1.4 Kink pressu

40、re When tested in accordance with EN 15889:2011, Annex C, the test piece shall neither burst nor show any signs of leakage or damage when examined visually before or after being subjected to the proof pressure given in Table 4. 6.2 Adhesion When tested in accordance with type 1 of EN ISO 8033 the ad

41、hesion between the lining and jacket shall be not less than 1,0 kN/m. The test piece shall be of length (25 0,5) mm cut at right angles to the longitudinal axis of the hose. The ring shall be cut transversely and opened out to form a strip and the adhesion determined with the rate of travel of the p

42、ower driven grips such that a rate of ply separation of (50 5) mm/min is obtained. If an adhesion result is not possible because of tearing due to high adhesion, this shall be accepted as a pass. All adhesions shall be attempted and the results recorded. 6.3 Accelerated ageing The hose shall be test

43、ed in accordance with EN 15889:2011, D.1. After ageing, subject three test pieces to the burst pressure test as specified in 6.1.3. The mean of the burst pressure test results shall not decrease by more than 25 % from the initial mean burst pressure value determined from the results obtained in 6.1.

44、3. Subject the remaining test piece to the adhesion test as given in 6.2. The adhesion between lining and jacket of the coiled test piece shall be not less than 0,9 kN/m. 6.4 Low temperature flexibility When tested in accordance with EN 15889:2011, G.1, the inner lining of the hose shall not crack o

45、r become loose from the jacket after 15 cycles. The test temperatures shall be as specified below: Standard test temperature (20 2) C Special test temperature (30 2) C NOTE The special test temperature requirement is for hoses for use in the colder climatic conditions of Northern Europe. 6.5 Hot sur

46、face resistance When tested in accordance with EN 15889:2011, Annex H at a test temperature of (200 10) C, the test piece shall not show signs of leakage within 120 s from the application of the filament rod or on removal of the filament rod after this period, in none of the four tests. 6.6 Resistan

47、ce to kinking When tested in accordance with EN 15889:2011, Annex Q and using a bending radius 10 times its inside diameter, the hose shall not show any kinks when examined visually. BS EN 14540:2014EN 14540:2014 (E) 9 7 Frequency of testing Type tests and Production tests shall be carried out as de

48、tailed in Annex A. Batch tests as given in Annex B shall be carried to control the quality of the product. They are for guidance only. 8 Marking Each length of hose shall be legibly and permanently marked with the following minimum information, at least twice per length, at both ends: a) the manufac

49、turers name or trade mark b) the number and date of this European Standard; c) the inside diameter; d) the maximum working pressure in MPa (bar); e) the quarter and year of manufacture; f) the test temperature if lower than 20 C (see 6.4); g) the approval number and the certifying body or its reference, where applicable. EXAMPLE Man - EN 14540:2014 - 20 - 45 - 1,5(15) - 2Q/2014 BS EN 14540:2014EN 14540:2014 (E) 10 Annex A (normative) Frequencies of testing (type test and production test) Table A.1 gives the frequencies for the tests