BS-EN-671-2-2001.pdf

BRITISH STANDARD BS EN 671-2:2001 Incorporating Amendment No. 1 Fixed firefighting systems Hose systems Part 2: Hose systems with lay-flat hose The European Standard EN 671-2:2001, with the incorporation of amendment A1:2004, has the status of a British Standard ICS 13.220.20 ? BS EN 671-2:2001 This British Standard, having been prepared under the direction of the Health and Environment Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 June 2001 © BSI 25 June 2004 ISBN 0 580 37701 6 National foreword This British Standard is the official English language version of EN 671-2:2001, including amendment A1:2004. EN 671-2:2001 is a candidate “harmonized” European Standard and fully takes into account the requirements of the European Commission mandate M109, “Fixed firefighting systems”, given under the EU Construction Products Directive (89/106/EEC), and intended to lead to CE marking. The date of applicability of EN 671-2:2001 as a harmonized European Standard, i.e. the date after which this standard may be used for CE marking purposes, is subject to an announcement in the Official Journal of the European Communities. EN 671-2:2001 is the subject of transitional arrangements agreed under the European Commission mandate. The Member States have agreed a nominal transition period for the co-existence of EN 671-2:2001 and their corresponding national standard(s). It is intended that this period will comprise a nominal nine month period during which any required changes to national regulations are to made, followed by a further nominal 12 month period for the implementation of CE marking. At the end of this co-existence period, the national standard(s) will be withdrawn. In the UK, the corresponding national standard is: BS EN 671-2:1995, Fixed firefighting systems Hose systems Part 2: Hose systems with lay-flat hose; and based on this nominal transition period of 21 months, BS EN 671-2:1995 would be withdrawn in January 2003. NOTEThis date is approximate. Users of this standard should contact BSI Customer Services for confirmation of withdrawal. The UK participation in its preparation was entrusted by Technical Committee FSH/18, Fixed firefighting systems, to Subcommittee FSH/18/11, Hose reel systems, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. 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 does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 24, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 1501525 June 2004Changes to Clause 2 and Subclause 5.1 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 671-2 April 2001 + A1 May 2004 ICS 13.220.20 Supersedes EN 671-2:1994 English version Fixed firefighting systems - Hose systems - Part 2: Hose systems with lay-flat hose (includes amendment A1:2004) Installations fixes de lutte contre l'incendie - Systèmes équipés de tuyaux - Partie 2: Postes d'eau muraux équipés de tuyaux plats (inclut lamendement A1:2004) Ortfeste Löschanlagen - Wandhydranten - Teil 2: Wandhydranten mit Flachschlauch (enthlt nderung A1:2004) This European Standard was approved by CEN on 1 March 2001; amendment A1 was approved by CEN on 17 March 2004. 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 obtained on application to the 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 Management Centre has the same status as the official versions. 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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2001 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 671-2:2001 + A1:2004 E Page 2 EN 671-2:2001 Contents Foreword3 Introduction.4 1 Scope4 2 Normative references4 3 Terms and definitions.5 4 Designation5 5 Hose and hose assemblies 6 6 Shut-off nozzle.6 7 Inlet stop valve 7 8 Cabinets .8 9 Materials.8 10 Hydraulic properties9 11 Colour, symbols, marking and instructions.10 12 Evaluation of conformity 11 Annex A (normative) Schedule for initial type testing 12 Annex B (normative) Test method for resistance to external corrosion.13 Annex C (normative) Ageing test for plastics materials.14 Annex D (normative) Test method for resistance to corrosion of waterways15 Annex E (normative) Test methods for nozzle.16 Annex ZA (informative) Clauses of this European Standard addressing the essential characteristics of EU Construction Products Directive .20 Bibliography24 Page 3 EN 671-2:2001 Foreword This European Standard has been prepared by Technical Committee CEN/TC 191 “Fixed firefighting system“, 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 October 2001, and conflicting national standards shall be withdrawn at the latest by January 2003. This European Standard replaces EN 671-2:1994. EN 671 has the general title “Fixed firefighting systems Hose systems” and is in three parts; Part 1: Hose reels with semi-rigid hose Part 2: Hose systems with lay-flat hose Part 3: Maintenance of hose reels with semi-rigid hose and hose systems with lay-flat hose This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association and supports the essential requirements of EU Directive 89/106/EEC. For relationship with EU Directives, see informative Annex ZA, which is an integral part of this standard. Annexes A, B, C, D and E are normative. This European Standard includes a bibliography. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Foreword to amendment A1 This document EN 671-2:2001/A1:2004 has been prepared by Technical Committee CEN/TC 191, Fixed firefighting systems, the Secretariat of which is held by BSI. This amendment to the European Standard EN 671-2:2001/A1:2004 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2004, and conflicting national standards shall be withdrawn at the latest by November 2004. 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 Directive(s). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following 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, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Page 4 EN 671-2:2001 Introduction Hose systems in proper condition provide a very effective firefighting facility with a continuous supply of water available immediately. The requirements of this standard have been framed to ensure that hose systems can be operated efficiently by one person and that such systems will have a long service life and will not need excessive maintenance. 1 Scope This European Standard specifies requirements and methods of test for the construction and performance of fire hose systems with lay-flat hose for installation in buildings and other construction works, permanently connected to a water supply, for use by the occupants. Its requirements may apply in general for other applications, for example in marine applications or in aggressive environments, but additional requirements may be necessary in such cases. For convenience of application in conformity testing, the normative annexes of this standard are arranged so that annex A gives the sequence of testing for conformity assessment and annexes B, C, D and E are in the correct sequence for testing. NOTE All pressures are gauge pressures and are expressed in megapascals. 1 MPa = 10 bar. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 671-3:2000, Hose systems Part 3: Maintenance of hose reels with semi-rigid hose and hose systems with lay-flat hose. prEN 14540, Non-percolating layflat delivery hoses and hose assemblies for fire fighting purposes. EN ISO 4892-2:1999, Plastics Methods of exposure to laboratory light sources Part 2: Xenon-arc sources (ISO 4892-2:1994). ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads - Part 1: Dimensions, tolerances and designation. ISO 9227:1990, Corrosion tests in artificial atmospheres; salt spray tests. ISO 5208:1993, Industrial valves, pressure testing of valves. Page 5 EN 671-2:2001 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply: 3.1 fire hose system; hose system firefighting appliance consisting essentially of a cabinet or cover, hose support, manual stop valve, lay-flat hose with couplings, shut-off nozzle 3.2 cabinet box to protect the hose system against environmental or physical damage 3.3 hose support device used to hold the hose 3.4 lay-flat hose hose which is flat-sectioned except when it is internally pressurized 3.5 coupling device used to connect the hose to the valve and to the shut-off nozzle 3.6 shut-off nozzle component at the end of the hose used to direct and control the discharge of water 4 Designation 4.1 General A hose system shall be designated according to its method of mounting (see 4.2), the form of hose support (see 4.3), the diameter of hose in millimetres and the length of hose in metres. Thus the hose system in a cabinet for surface mounting, with the hose on a reel, fitted with 52 mm diameter hose of length 20 m, is designated: EN671-2C-1/52-20. 4.2 Method of mounting A hose system shall be designed for mounting in one of the following forms: - form A : in a wall recess with cover; - form B : in a cabinet in a wall recess; - form C : in a cabinet for surface mounting. 4.3 Hose support 4.3.1 General The hose support shall be one of the following types: - type 1 : rotating reel; - type 2 : cradle with the hose double coiled; Page 6 EN 671-2:2001 - type 3 : hose basket with the hose flaked. 4.3.2 Type 1 The reel shall rotate around a spindle so that the hose can be withdrawn freely. The inside drum shall have a minimum diameter of not less than 70 mm and shall have a slit not less than 20 mm wide across the full diameter of the drum into which the folded hose is located. 4.3.3 Type 2 and type 3 Type 2 and 3 supports if fixed to the cabinet shall allow a swing to a position at 900 to the plane of the back of the cabinet. The turning axis shall be vertical. No deformation, which may harm the function of the hose support, shall occur when tested in accordance with 9.2.2. 5 Hose and hose assemblies 5.1 General The hose shall be lay-flat and conform to prEN 14540. 5.2 Hose bore The nominal diameter shall not exceed 52 mm. 5.3 Maximum length The nominal length of the hose shall not exceed 20 m, except where, for certain specific applications, regulations permit greater lengths. 5.4 Couplings 5.4.1 General The coupling shall be as specified by, or agreed with, the purchaser. NOTE It is normally appropriate for couplings to comply with national standards of the country in which the equipment is to be installed. 5.4.2 Coupling bindings The coupling shall be bound to the hose by means of an even pressure over the complete perimeter of the hose against the coupling shank. 6 Shut-off nozzle 6.1 General The hose shall terminate in a shut-off nozzle, which shall give the following control settings: a) shut; and b) spray; and/or c) jet. NOTE When both spray and jet are provided it is recommended that the sequence should be as above with the spray setting between the shut setting and the jet setting. Any spray discharge shall be in the form of either a sheet spray or a conical spray. Page 7 EN 671-2:2001 6.2 Resistance to impact The nozzle shall not break or show any visible leakage when tested in accordance with E.1. 6.3 Operating torque The torque necessary to operate the nozzle to each control setting at maximum working pressure shall not exceed the appropriate value given in Table 1 when determined after testing in accordance with E.2. Table 1 - Maximum operating torque of nozzle control Control setti