1、BS EN 15624:2008ICS 45.060.01NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDRailway applications Braking Empty-loaded changeoverdevicesLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/07/2009 07:34, Uncontrolled Copy, (c) BSIThis British Standardwas pu
2、blished under theauthority of the StandardsPolicy and StrategyCommittee on 31 March2009 BSI 2009ISBN 978 0 580 58197 7Amendments/corrigenda issued since publicationDate CommentsBS EN 15624:2008National forewordThis British Standard is the UK implementation of EN 15624:2008.The UK participation in it
3、s preparation was entrusted to TechnicalCommittee RAE/4, Braking.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.
4、Compliance with a British Standard cannot confer immunityfrom legal obligations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/07/2009 07:34, Uncontrolled Copy, (c) BSIBS EN 15624:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15624October 2008ICS 45.060.01English VersionRailway ap
5、plications - Braking - Empty-loaded changeoverdevicesApplications ferroviaires - Freinage - Dispositifs dechangement de rgime Vide-ChargBahnanwendungen - Bremse - Leer-beladen-UmstellvorrichtungenThis European Standard was approved by CEN on 13 September 2008.CEN members are bound to comply with the
6、 CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or
7、 to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versio
8、ns.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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,
9、 Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members
10、.Ref. No. EN 15624:2008: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/07/2009 07:34, Uncontrolled Copy, (c) BSIBS EN 15624:2008EN 15624:2008 (E) 2 Contents Page Foreword4 1 Scope 5 2 Normative references 5 3 Terms, definitions and symbols.5 3.1 Terms and definitions .5 4 Design and man
11、ufacture.6 4.1 General6 4.2 Functional requirements.7 4.2.1 General7 4.2.2 Automatic empty-loaded changeover device .7 4.2.3 Pneumatic device characteristics8 4.2.4 Automatic hydraulic to pneumatic converter .9 4.2.5 Automatic elastomeric to pneumatic converter .9 4.2.6 Components for operation of t
12、he manual empty-loaded changeover device.9 4.3 Vibrations and shock 10 4.4 Environment.10 4.4.1 General10 4.4.2 Temperature .10 4.4.3 Other environmental conditions 11 4.5 Compressed air quality .12 4.6 Service life 12 4.7 Fire behaviour 13 4.8 External appearance13 4.9 Design requirements regarding
13、 pressure stress .13 4.10 Leakage.13 4.11 Interfaces 13 4.11.1 Mechanical13 4.11.2 Pneumatic.14 5 Materials .14 6 Type tests .14 6.1 General14 6.2 Individual automatic empty-loaded changeover device type tests 14 6.2.1 Test bench for individual automatic empty-loaded changeover device type tests14 6
14、.2.2 Sampling for type tests .15 6.2.3 Test requirements15 6.2.4 Check of physical and geometrical characteristics.16 6.2.5 Leakage.16 6.2.6 Changeover operation empty to loaded.17 6.2.7 Changeover operation loaded to empty.18 6.2.8 Response time empty to loaded19 6.2.9 Response time loaded to empty
15、20 6.2.10 Shock and vibration tests .20 6.2.11 Operation at extreme temperatures.21 7 Routine test and inspection21 8 Type validation.21 9 Manual empty-loaded changeover device installation validation 22 9.1 Equivalent handle movement.22 9.2 Changeover plate alignment.22 Licensed Copy: Wang Bin, ISO
16、/EXCHANGE CHINA STANDARDS, 02/07/2009 07:34, Uncontrolled Copy, (c) BSIBS EN 15624:2008EN 15624:2008 (E) 3 10 Documentation 22 11 Designation 22 12 Identification and marking23 12.1 Identification plate.23 12.2 Changeover plate for the manual empty-loaded changeover device 23 Annex A (informative) A
17、ssessment of an empty-loaded changeover device when fitted to a vehicle 25 A.1 Vehicle assessment Testing set up25 A.2 Design acceptance testing set up .25 A.3 Single vehicle static testing .25 A.3.1 Vehicle requirements 25 A.3.2 Test procedures.25 A.4 Running tests.26 A.4.1 General .26 A.4.2 Pneuma
18、tic empty-loaded changeover device Air consumption .26 A.4.3 Pneumatic empty-loaded changeover device Output signal variation.27 Annex B (informative) Examples of manual empty-loaded changeover device handles and changeover plates.28 Annex C (informative) Test bench diagram30 Annex ZA (informative)
19、Relationship between this European Standard and the Essential Requirements of EU Directive 2001/16/EC, as amended by EU Directive 2004/50/EC .31 Bibliography32 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/07/2009 07:34, Uncontrolled Copy, (c) BSIBS EN 15624:2008EN 15624:2008 (E) 4 Forew
20、ord This document (EN 15624:2008) 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 national standard, either by publication of an identical text or by endorsement, at the latest
21、by April 2009, and conflicting national standards shall be withdrawn at the latest by April 2009. 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 pat
22、ent rights. This European Standard has been prepared under a mandate given to CEN/CENELEC/ETSI by the European Commission and the European Free Trade Association to support Essential Requirements of EU Directive 2001/16, as modified by EU Directive 2004/50. For relationship with EU Directive(s), see
23、 informative Annex ZA, which 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, Cyprus, Czech Republic, Denmark, Estonia, F
24、inland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/07/2009 07:34, Uncontr
25、olled Copy, (c) BSIBS EN 15624:2008EN 15624:2008 (E) 5 1 Scope This European Standard is applicable 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 clas
26、sed as “loaded” and thereby requires the brake force to be adjusted accordingly to achieve the required 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
27、the design, dimensions, manufacture and testing of empty-loaded changeover devices. 2 Normative references 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 th
28、e referenced document (including any amendments) applies. EN 14478:2005, Railway applications Braking 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
29、 3: Classification of groups of environmental parameters and their severities Section 5: Ground vehicle 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
30、 not made on the threads Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) ISO 8573-1:2001, 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 14478:2
31、005 and the following apply. 3.1.1 empty-loaded changeover device device connected to the vehicle, which 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 wh
32、en the load is increased or when the load is decreased by providing a signal to the brake control device 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 chan
33、geover device that exhausts the output pressure to nominally 0 bar in the loaded state Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/07/2009 07:34, Uncontrolled Copy, (c) BSIBS EN 15624:2008EN 15624:2008 (E) 6 3.1.2 changeover mass lowest value of vehicle mass at which it is deemed to be
34、 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 vehicle, which responds to the loading of that vehicle to provide a continuous load proportional signal to the brak
35、e 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 mechanism which transforms the hydraulic pressure generated by the mass of the vehicle into a pneumatic pressure with a def
36、ined relationship 3.1.6 elastomeric to pneumatic converter device or mechanism having both elastomeric and pneumatic components, which transforms the pressure in the elastomer generated by the mass of the vehicle into a pneumatic pressure with a defined relationship 3.1.7 output signal pressure load
37、 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 mechanism 3.1.8 supply pressure input pressure of the air supply in a pneumatic empty-loaded changeover device NOTE Typicall
38、y 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 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
39、, 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 device shall take the requirements of this clause into account for all intended operating conditions. Licensed Copy: W
40、ang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/07/2009 07:34, Uncontrolled Copy, (c) BSIBS EN 15624:2008EN 15624:2008 (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 (empty or loaded) to the braking
41、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 changeover device shall, in all cas
42、es, 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 characteristics of the brake system, oth
43、er 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 the output pressure to nominall
44、y 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 normal braking performance of th
45、at 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 mass exceeds or falls below the
46、 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 A.3.2.1. 4.2.2.1.3 An automatic
47、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 vehicle in a position to sense the loa
48、d 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 integral damping the response of th
49、e 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 device supplied with air from the distributor auxiliary reservoir or main reservoir When the operating mechanism is moved to the loaded position and kept there for longe
