EN 694-2014 en Fire-fighting hoses - Semi-rigid hoses for fixed systems《消防软管 固定系统的半刚性软管》.pdf

1、BSI Standards PublicationBS EN 694:2014Fire-fighting hoses Semi-rigid hoses for fixed systemsBS EN 694:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 694:2014. Itsupersedes BS EN 694:2001 which is withdrawn.The UK participation in its preparation was entru

2、sted 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. Users are responsible f

3、or its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 78800 0ICS 13.220.10; 23.040.70Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandar

4、ds Policy and Strategy Committee on 31 August 2014.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 694:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 694 July 2014 ICS 13.220.10; 23.040.70 Supersedes EN 694:2001+A1:2007English Version Fire-fighting hoses - Semi-rigid h

5、oses for fixed systems Tuyaux de lutte contre lincendie - Tuyaux semi-rigides pour systmes fixes Feuerlschschluche - Formstabile Schluche fr Wandhydranten This European Standard was approved by CEN on 14 June 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipu

6、late 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 CEN member. This European S

7、tandard 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 versions. CEN members are the

8、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, Poland, Portugal, Romania,

9、 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 exploitation in any form and by any

10、 means reserved worldwide for CEN national Members. Ref. No. EN 694:2014 EBS EN 694:2014EN 694:2014 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and Definitions .5 4 Classification 6 4.1 General 6 4.2 Classification by types (hose construction) .6 4.3 Cla

11、ssification by class (materials for lining and cover) 6 5 Dimensions, tolerances and maximum mass .6 5.1 Inside diameter and maximum mass .6 5.2 Length and tolerances on length .7 6 Performance requirements of finished hose 7 6.1 Hydrostatic requirements .7 6.1.1 Deformation under maximum working pr

12、essure 7 6.1.2 Deformation under proof pressure 8 6.1.3 Minimum burst pressure .8 6.1.4 Kink pressure .8 6.2 Adhesion .8 6.3 Accelerated ageing 8 6.4 Low temperature flexibility .9 6.5 Hot surface resistance 9 6.6 Ozone resistance .9 6.7 Bending and crush resistance .9 6.8 UV-resistance (xenon arc l

13、amp) .9 6.9 Loss in mass on heating .9 7 Frequency of testing .9 8 Marking 10 Annex A (normative) Frequencies of testing (type test and production test) 11 Annex B (informative) Frequencies of testing (batch test) 12 Bibliography . 13 BS EN 694:2014EN 694:2014 (E) 3 Foreword This document (EN 694:20

14、14) 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 given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2015 a

15、nd 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 be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. Th

16、is document supersedes EN 694:2001+A1:2007. This revised standard now references EN 15889:2011, Fire-fighting hoses - Test methods, which includes the test methods formerly in annexes within EN 694. The standard is based on liaison with CEN/TC 191 “Fixed fire-fighting systems” and should be read in

17、conjunction with EN 671-1. Requirements for semi-rigid hoses for use with fire-fighting pumps and vehicles are given in EN 1947; those for non-percolating layflat hoses for fixed systems are given in EN 14540. According to the CEN-CENELEC Internal Regulations, the national standards organizations of

18、 the following countries 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, Neth

19、erlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 694:2014EN 694:2014 (E) 4 Introduction A fixed system is a manually operated unit installed in a building in order to make it possible for the occupants to control and ext

20、inguish 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 valve, a semi-rigid hose which is water filled or empty fitted on a reel with its support and a nozzle. The fixed system is

21、specified in EN 671-1, Fixed firefighting systems - Hose systems - Part 1: Hose reels with semi-rigid hose. BS EN 694:2014EN 694:2014 (E) 5 1 Scope This European Standard specifies the requirements and test methods for semi-rigid hoses for fire-fighting purposes for use with fixed systems. The hoses

22、 are intended for use at a maximum working pressure of 1,2 MPa for hoses of 19 mm and 25 mm inside diameter and 0,7 MPa for hoses of 33 mm inside diameter. Hoses conforming to this European Standard are intended for applications where long intervals can occur between the occasions of use, for exampl

23、e on fixed fire hose reels in buildings and other construction works. This European Standard applies exclusively to hoses for fire-fighting purposes intended for use at ambient conditions in non-aggressive or non-corrosive atmospheres within the temperature range 20 C to +60 C. NOTE 1 Hoses for use

24、at ambient temperatures below 20C 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). NOTE 2 All pressures are expressed in megapascals. 1 MPa = 10 bar 2 Normative references The following documents, in wh

25、ole 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 15889:2011, Fire-fighting hoses -

26、Test methods EN ISO 176:2005, Plastics - Determination of loss of plasticizers - Activated carbon method (ISO 176:2005) EN ISO 1307, Rubber and plastics hoses - Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hoses (ISO 1307) EN ISO 1402, Rubber and plastics hoses a

27、nd 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 7326:2008, Rubber and plastics hoses - Assessment of ozone resistance under static c

28、onditions (ISO 7326:2006) EN ISO 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) EN ISO 10619-2:2011, Rubber and plastics hoses and tubing - Measurement of flexibility and sti

29、ffness - Part 2: Bending tests at sub-ambient temperatures (ISO 10619-2:2011) 3 Terms and Definitions For the purposes of this standard the following definition applies, together with those for working pressure, proof pressure and burst pressure given in EN ISO 8330. 3.1 semi-rigid hose hose which m

30、aintains its round cross-section even when unpressurized BS EN 694:2014EN 694:2014 (E) 6 4 Classification 4.1 General All types and classes of hoses shall be so flexible that they can be rolled and kept on a drum of minimum diameter 200 mm for 19 mm and 25 mm inside diameter hose and of minimum diam

31、eter 280 mm for 33 mm inside diameter hose. Hoses shall be one of two types distinguished by their construction. Each hose type shall be further divided into classes distinguished by the materials used for lining and cover. 4.2 Classification by types (hose construction) Type A hoses shall consist o

32、f: a) a seamless rubber or plastics lining; b) a textile reinforcement with or without a rigid spiral helix; c) a rubber or plastics cover. Type B hoses shall consist of: d) a seamless rubber or plastics lining; e) a circular woven textile reinforcement with a rigid spiral helix; f) an uncovered or

33、rubber or plastics cover. 4.3 Classification by class (materials for lining and cover) The hose types shall be further subdivided into six classes dependent on the materials used in the construction in accordance with Table 1. Table 1 Classes and materials Class Lining material Cover material 1 rubb

34、er rubber 2 plastics plastics 3 rubber plastics 4 plastics rubber 5 rubber no cover 6 plastics no cover 5 Dimensions, tolerances and maximum mass 5.1 Inside diameter and maximum mass The inside diameter of the hose, when measured in accordance with EN ISO 4671, shall conform to the requirements give

35、n in Table 2. The mass per metre length of the hose shall be in accordance with Table 2. BS EN 694:2014EN 694:2014 (E) 7 Table 2 Inside diameter, tolerances on inside diameter and maximum mass per unit length Inside diameter Tolerances for inside diameter Maximum mass per unit length mm mm kg/m Type

36、 A Type B max. max. 19 0,5 to +1,0 0,75 0,25 25 1,0 0,90 0,35 33 1,0 to +1,5 1,00 0,50 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. 6 Performance requirements of finished hose 6.1 Hydrost

37、atic requirements 6.1.1 Deformation under maximum working pressure The dimensional stability of the hose, when tested in accordance with EN ISO 1402, shall conform to the requirements given in Table 3. The length of the test piece shall be 1 m. For 19 mm and 25 mm inside diameter hoses the initial t

38、est pressure shall be 0,07 MPa and the final test pressure shall be 1,2 MPa. For 33 mm inside diameter hose the initial test pressure shall be 0,07 MPa and the final test pressure shall be 0,7 MPa. The twist shall be not greater than 30/m for type A. For type B the twist may be greater than 30/m but

39、 in this case it shall only be in a direction which closes the coupling and shall be stated in the test report. Table 3 Change in length and external diameter Tolerances for type A Tolerances for type B % % Change in length 0 to +7,5 0 to +5,0 Change in external diameter 0 to +7,5 0 to +5,0 BS EN 69

40、4:2014EN 694:2014 (E) 8 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 pressure shall be as given in Table 4 and on examination during the test, the test pieces shall not show any evid

41、ence of leakage, cracking, abrupt distortion or other signs of failure. Table 4 Maximum working pressure, proof pressure and minimum burst pressure Pressure Inside diameter MPa 19 mm and 25 mm 33 mm Maximum working pressure 1,2 0,7 Proof pressure 2,4 1,4 Minimum burst pressure 4,2 2,45 6.1.3 Minimum

42、 burst pressure A burst pressure test shall be carried out in accordance with EN ISO 1402 on the three test pieces used for the deformation under proof pressure test. Each of the test pieces shall not burst at a pressure less than that given in Table 4. It is not necessary to increase the pressure a

43、bove 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 pressure When tested in accordance with EN 15889:2011, Annex

44、 C, the test piece shall be pressurised to 1,2 MPa for 19 mm and 25 mm inside diameter hoses and at 0,7 MPa for 33 mm inside diameter hose. There shall be no leakage or damage prior to releasing the pressure. 6.2 Adhesion When tested in accordance with EN ISO 8033 the adhesion between all components

45、 shall be not less than 1,5 kN/m for type A hoses and 1,0 kN/m for type B hoses. The test method shall be dependant on the construction of the hose 6.3 Accelerated ageing The hose shall be tested in accordance with EN 15889:2011, D.2. After ageing, subject three test pieces to the burst pressure tes

46、t 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 6.1.3. Subject the remaining test piece to the adhesion test as given in 6.2. The resultant adhesion of the fou

47、rth test piece shall be in accordance with the requirements of 6.2. BS EN 694:2014EN 694:2014 (E) 9 6.4 Low temperature flexibility The test shall be carried out in accordance with Clause 5, Method B of EN ISO 10619-2:2011 using a mandrel of outside diameter equal to 12 times the inside diameter of

48、the hose. After bending the hose round the mandrel through 180 for (10 2) s at a temperature of (20 2) C or lower if requested, it shall not show any signs of breaking or cracking and shall meet the proof pressure requirement given in Table 4. 6.5 Hot surface resistance For all types and classes, wh

49、en tested in accordance with EN 15889:2011, Annex H at a test temperature of (200 2) C. In none of the four tests shall leakage occur less than 60 s from the application of the filament rod or on removal of this filament rod after the specified period. 6.6 Ozone resistance For all diameter and types of hoses when tested in accordance with EN ISO 7326:2008, 7.1, method 1, neither the inside or the cover of the hose shall show any signs of visible cracks. The lining shall be examined by slitting the hose wall. 6.7 Bending and crush resistance When