1、BS EN 15624:2008ICS 45.060.01NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDRailway applications Braking Empty-loaded changeoverdevices+A1:2010National forewordThis British Standard is the UK implementation of EN 15624:2008+A1:2010. It supersedes BS EN 15624:20
2、08, which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“.The UK participation in its preparation
3、 was entrusted to Technical Committee RAE/4, Braking.A list of organizations represented on this committee 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
4、 with a British Standard cannot confer immunity from legal obligations.BS EN 15624:2008+A1:2010This British Standard was published under the authority of the Standards Policy and Strategy Com-mittee on 31 March 2009 BSI 2011Amendments/corrigenda issued since publicationDate Comments 31 January 2011
5、Implementation of CEN amendment A1:2010ISBN 978 0 580 70063 7EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15624:2008+A1 October 2010 ICS 45.060.01 Supersedes EN 15624:2008English Version Railway applications - Braking - Empty-loaded changeover devices Applications ferroviaires - Freinage - D
6、ispositifs de changement de rgime Vide-Charg Bahnanwendungen - Bremse - Leer-beladen-Umstellvorrichtungen This European Standard was approved by CEN on 13 September 2008 and includes Amendment 1 approved by CEN on 30 August 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulati
7、ons 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 Management Centre or to any CEN member. This Eur
8、opean 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 Management Centre has the same status as the official versions. CEN members are the n
9、ational standards bodies of Austria, Belgium, Bulgaria, Croatia, 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, Sweden, Swit
10、zerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No.
11、 EN 15624:2008+A1:2010: E2 Contents Page Foreword 41 Scope 52 Normative references 53 Terms, definitions and symbols .53.1 Terms and definitions .54 Design and manufacture .64.1 General 64.2 Functional requirements .74.2.1 General 74.2.2 Automatic empty-loaded changeover device .74.2.3 Pneumatic dev
12、ice characteristics 84.2.4 Automatic hydraulic to pneumatic converter .94.2.5 Automatic elastomeric to pneumatic converter .94.2.6 Components for operation of the manual empty-loaded changeover device .94.3 Vibrations and shock . 104.4 Environment 104.4.1 General . 104.4.2 Temperature 104.4.3 Other
13、environmental conditions . 104.5 Compressed air quality 124.6 Service life . 124.7 Fire behaviour . 124.8 External appearance . 134.9 Design requirements regarding pressure stress 134.10 Leakage 134.11 Interfaces . 134.11.1 Mechanical . 134.11.2 Pneumatic 135 Materials 136 Type tests 146.1 General .
14、 146.2 Individual automatic empty-loaded changeover device type tests . 146.2.1 Test bench for individual automatic empty-loaded changeover device type tests . 146.2.2 Sampling for type tests 156.2.3 Test requirements . 156.2.4 Check of physical and geometrical characteristics 166.2.5 Leakage 166.2.
15、6 Changeover operation empty to loaded 176.2.7 Changeover operation loaded to empty 176.2.8 Response time empty to loaded. 186.2.9 Response time loaded to empty. 196.2.10 Shock and vibration tests 196.2.11 Operation at extreme temperatures 207 Routine test and inspection . 218 Type validation 219 Ma
16、nual empty-loaded changeover device installation validation . 219.1 Equivalent handle movement 219.2 Changeover plate alignment 21BS EN 15624:2008+A1:2010EN 15624:2008+A1:2010 (E)3 10 Documentation 2111 Designation 2212 Identification and marking 2212.1 Identification plate . 2212.2 Changeover plate
17、 for the manual empty-loaded changeover device 22Annex A (informative) Assessment of an empty-loaded changeover device when fitted to a vehicle 24A.1 Vehicle assessment Testing set up 24A.2 Design acceptance testing set up . 24A.3 Single vehicle static testing . 24A.3.1 Vehicle requirements 24A.3.2
18、Test procedures . 24A.4 Running tests . 25A.4.1 General . 25A.4.2 Pneumatic empty-loaded changeover device Air consumption . 25A.4.3 Pneumatic empty-loaded changeover device Output signal variation . 26Annex B (informative) Examples of manual empty-loaded changeover device handles and changeover pla
19、tes . 27Annex C (informative) Test bench diagram 29Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC of the European Parliament and of the Council of 17 June 2008 on the interoperability of the rail system within the Communi
20、ty (Recast)“ . 30Bibliography 32BS EN 15624:2008+A1:2010EN 15624:2008+A1:2010 (E)4 Foreword This document (EN 15624:2008+A1:2010) has been prepared by Technical Committee CEN/TC 256 “Railway applications”, the secretariat of which is held by DIN. This European Standard shall be given the status of a
21、 national standard, either by publication of an identical text or by endorsement, at the latest by April 2011, and conflicting national standards shall be withdrawn at the latest by April 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of pat
22、ent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document includes Amendment 1, approved by CEN on 2010-08-30. This document supersedes EN 15624:2008. The start and finish of text introduced or altered by amendment is indicated in the t
23、ext by tags ! “. !This document has been prepared under a mandate given to CEN/CENELEC/ETSI by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2008/57/EC. For relationship with EU Directive 2008/57/EC, see informative Annex ZA, whi
24、ch is an integral part of this document.“ 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, France,
25、Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 15624:2008+A1:2010EN 15624:2008+A1:2010 (E)5 1 Scope This European Standard is applicable
26、to empty-loaded changeover devices designed to automatically sense when the load of a railway vehicle reaches a defined value (changeover mass), which represents the point at which the vehicle is classed as “loaded” and thereby requires the brake force to be adjusted accordingly to achieve the requi
27、red brake performance. This European Standard also covers manually operated empty-loaded changeover devices and the associated changeover plates. This European Standard specifies the requirements for the design, dimensions, manufacture and testing of empty-loaded changeover devices. 2 Normative refe
28、rences The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 14478:2005, Railway applications Brakin
29、g Generic vocabulary EN 50125-1, Railway applications Environmental conditions for equipment Part 1: Equipment on board rolling stock EN 60721-3-5:1997, Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Section 5: Ground vehi
30、cle installations (IEC 60721-3-5:1997) EN 61373:1999, Railway applications Rolling stock equipment Shock and vibration tests (IEC 61373:1999) EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) ISO 8573-1:
31、2001, Compressed air Part 1: Contaminants and purity classes 3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14478:2005 and the following apply. 3.1.1 empty-loaded changeover device device connected to the vehicle, w
32、hich is either manually operated or responds automatically to a change of vehicle loading, thereby changing the state of the brake system at a defined value of vehicle mass (changeover mass) either when the load is increased or when the load is decreased by providing a signal to the brake control de
33、vice 3.1.1.1 positive load signal pressure device empty-loaded changeover device that provides a positive output pressure in the loaded state 3.1.1.2 zero load signal pressure device empty-loaded changeover device that exhausts the output pressure to nominally 0 bar in the loaded state BS EN 15624:2
34、008+A1:2010EN 15624:2008+A1:2010 (E)6 3.1.2 changeover mass lowest value of vehicle mass at which it is deemed to be in the loaded condition, thereby requiring the adjustment of brake force to achieve the required brake performance 3.1.3 automatic variable load sensing device device connected to the
35、 vehicle, which responds to the loading of that vehicle to provide a continuous load proportional signal to the brake control device 3.1.4 mechanically operated pneumatic device device or mechanism having both mechanical and pneumatic elements 3.1.5 hydraulic to pneumatic converter device or mechani
36、sm which transforms the hydraulic pressure generated by the mass of the vehicle into a pneumatic pressure with a defined relationship 3.1.6 elastomeric to pneumatic converter device or mechanism having both elastomeric and pneumatic components, which transforms the pressure in the elastomer generate
37、d by the mass of the vehicle into a pneumatic pressure with a defined relationship 3.1.7 output signal pressure load signal pressure Lsp output pressure delivered by the empty-loaded changeover device, which signals the load state (either empty or loaded) of the vehicle to the brake control mechanis
38、m 3.1.8 supply pressure input pressure of the air supply in a pneumatic empty-loaded changeover device NOTE Typically supplied from the vehicle distributor auxiliary reservoir, alternatively from the vehicle distributor output pressure or from the brake cylinder pressure. 3.1.9 normal litre Nl unit
39、of mass for gases equal to the mass of 1 l at a pressure of 1,013 2 bar (1 atmosphere) and at a standard temperature, often 0 C or 20 C NOTE Airflow is often stated in normal litres per minute (Nl/min). 4 Design and manufacture 4.1 General The design and manufacture of the empty-loaded changeover de
40、vice shall take the requirements of this clause into account for all intended operating conditions. BS EN 15624:2008+A1:2010EN 15624:2008+A1:2010 (E)7 4.2 Functional requirements 4.2.1 General 4.2.1.1 The empty-loaded changeover device shall supply a signal indicating the variation in vehicle load (
41、empty or loaded) to the braking control system; this shall be mechanical or pneumatic. The method of producing the pneumatic signal shall be a mechanically operated pneumatic device, hydraulic to pneumatic converter device or an elastomeric to pneumatic converter device. 4.2.1.2 The empty-loaded cha
42、ngeover device shall, in all cases, supply an output signal (Lsp), which is a function of the load. 4.2.1.3 The empty-loaded changeover device shall not alter any of the characteristics of the distributor and/or any associated relay device, when fitted to a vehicle, thereby not altering the characte
43、ristics of the brake system, other than to signal the load change and thereby cause the brake cylinder pressure to change between the two states. 4.2.1.4 The design of the empty-loaded changeover device shall either provide a positive output pressure (positive load signal pressure device) or exhaust
44、 the output pressure to nominally 0 bar (zero load signal pressure device) in the loaded state dependant on the applicable design requirements. 4.2.1.5 The air consumption of a pneumatic empty-loaded changeover device shall, during running of the vehicle, be minimal and shall not interfere with the
45、normal braking performance of that vehicle. A test which can be used to confirm this is described in A.3.2. 4.2.2 Automatic empty-loaded changeover device 4.2.2.1 General 4.2.2.1.1 An automatic empty-loaded changeover device shall change from the empty to loaded state or vice versa, when the vehicle
46、 mass exceeds or falls below the changeover mass by a deliberate load change. 4.2.2.1.2 When an automatic empty-loaded changeover device is fitted to a vehicle the changeover shall take place within 5 % of the defined vehicle changeover mass. A test which can be used to confirm this is described in
47、A.3.2.1. 4.2.2.1.3 An automatic empty-loaded changeover device may have a damping facility within its mechanism to prevent the effects of transient suspension movement from causing a change of the load signal. 4.2.2.1.4 An automatic empty-loaded changeover device shall be designed to fit to a vehicl
48、e in a position to sense the load change of that vehicle, causing a change of state of the changeover device. This may be within the vehicle suspension system or linked to it, in order to sense the load change. 4.2.2.2 Changeover response Where the empty-loaded changeover device does not include int
49、egral damping the response of the output pressure shall be immediate, i.e. the pressure shall fall or increase dependant on the particular design of the device, as soon as the device is moved from one state to another. Where the empty-loaded changeover device has integral damping a delay in the output pressure (Lsp) response shall be apparent. 4.2.2.3 Empty to loaded changeover 4.2.2.3.1 Integrally damped de
