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    DIN EN 15625-2011 Railway applications - Braking - Automatic variable load sensing devices German version EN 15625 2008+A1 2010《轨道交通 制动 自动可变负荷传感器 德文版本EN 15625-2008+A1-2010》.pdf

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    DIN EN 15625-2011 Railway applications - Braking - Automatic variable load sensing devices German version EN 15625 2008+A1 2010《轨道交通 制动 自动可变负荷传感器 德文版本EN 15625-2008+A1-2010》.pdf

    1、January 2011 Translation by DIN-Sprachendienst.English price group 15No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC

    2、S 45.060.01!$m0Q“1741346www.din.deDDIN EN 15625Railway applications Braking Automatic variable load sensing devices (includes Amendment A1:2010)English translation of DIN EN 15625:2011-01Bahnanwendungen Bremse Automatisch kontinuierlich wirkende Lasterfassungseinrichtungen (enthlt nderungA1:2010)Eng

    3、lische bersetzung von DIN EN 15625:2011-01Applications ferroviaires Freinage Dispositifs de pese variable automatiques (Amendement A1:2010 inclus)Traduction anglaise de DIN EN 15625:2011-01SupersedesDIN EN 15625:2010-05www.beuth.deDocument comprises pagesIn case of doubt, the German-language origina

    4、l shall be considered authoritative.3301.11 DIN EN 15625:2011-01 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 256 “Railway applications” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was

    5、the Normenausschuss Fahrweg und Schienenfahrzeuge (Railway Standards Committee), Working Committee NA 087-00-03 AA Bremse. Amendments This standard differs from DIN EN 15625:2010-05 as follows: a) the foreword and Annex ZA have been modified; b) Annex ZB has been deleted. Previous editions DIN EN 15

    6、625: 2010-05 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15625:2008+A1 October 2010 ICS 45.060.01 Supersedes EN 15625:2008English Version Railway applications - Braking - Automatic variable load sensing devices Applications ferroviaires - Freinage - Dispositifs de pese variable automatiqu

    7、es Bahnanwendungen - Bremse - Automatisch kontinuierlich wirkende Lasterfassungseinrichtungen 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 Regulations which st

    8、ipulate 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 European Standa

    9、rd 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 national stan

    10、dards 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, Switzerland and

    11、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. EN 15625:20

    12、08+A1:2010: EEN 15625:2008+A1:2010 (E) 2 Contents Page Foreword 41 Scope 52 Normative references 53 Terms, definitions and symbols .53.1 Terms and definitions .53.2 Symbols 64 Design and manufacture .64.1 General 64.2 Functional requirements .74.2.1 Operating requirements 74.2.2 Characteristics of w

    13、eighing valves 74.2.3 Mechanical requirements 94.2.4 Leakage .94.3 Vibrations and shock 94.4 Environment .94.4.1 General 94.4.2 Temperature 104.4.3 Other environmental conditions . 104.5 Compressed air quality 124.6 Service life . 124.7 Fire behaviour . 124.8 External appearance . 124.9 Design requi

    14、rements regarding pressure stress 124.10 Interfaces . 134.10.1 Mechanical . 134.10.2 Pneumatic 135 Materials 136 Type tests 136.1 General . 136.2 Individual automatic variable load sensing device type tests . 136.2.1 Test bench for individual automatic variable load sensing devices type tests . 136.

    15、2.2 Sampling for type test 146.2.3 Test requirements . 156.2.4 Check of physical and geometrical characteristics 156.2.5 Leakage 166.2.6 Characteristic, hysteresis 176.2.7 Operation at extreme temperatures 186.2.8 Vibration and shock tests 207 Routine tests (serial tests) and inspection 207.1 Genera

    16、l . 207.2 Check of characteristic 207.2.1 Procedure 207.2.2 Pass/fail criteria 218 Type validation 219 Documentation 2110 Designation . 22DIN EN 15625:2011-01 EN 15625:2008+A1:2010 (E) 3 11 Identification and marking 22Annex A (informative) Assessment of an automatic variable load sensing device whe

    17、n fitted to a vehicle. 23A.1 Vehicle assessment Testing set up 23A.2 Design acceptance testing set up . 23A.3 Running tests . 23A.3.1 General . 23A.3.2 Pneumatic automatic variable load sensing device Air consumption . 23A.3.3 Automatic variable load sensing device Output signal variation . 24Annex

    18、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 Community (Recast)“ . 25!deleted text“ Bibliography 31DIN EN 156

    19、25:2011-01 EN 15625:2008+A1:2010 (E) 4 Foreword This document (EN 15625:2008+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 national standard, either by publication of

    20、 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 patent rights. CEN and/or CENELEC shall not be

    21、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 15625:2008. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. !This document has been pre

    22、pared 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, which is an integral part of this document.“ Ac

    23、cording 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, Germany, Greece, Hungary, Iceland, Ireland,

    24、Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. DIN EN 15625:2011-01 EN 15625:2008+A1:2010 (E) 5 1 Scope This European Standard applies to automatic variable load sensing devices designed

    25、to continuously sense the load of a railway vehicle and provide a signal that can be used by a relay valve for the automatic variation of the air pressure used for brake application, thereby adjusting the brake force accordingly to achieve the required brake performance. This European Standard speci

    26、fies the requirements for the design, dimensions, manufacture and testing of automatic variable load sensing 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 re

    27、ferences, the latest edition of the 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, Classificatio

    28、n of environmental conditions Part 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 threa

    29、ds where pressure-tight joints are 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 a

    30、nd definitions given in EN 14478:2005 and the following apply. 3.1.1 automatic variable load sensing device weighing device device connected to the vehicle, which responds to the loading of that vehicle to provide a continuous load proportional signal to the brake control device NOTE The load input

    31、is normally a share of the wagons mass because of the devices position in the vehicle suspension system. The result is a pneumatic output signal pressure that can be any value between a minimum at tare mass and a maximum at maximum mass. Most of the existing self-adjusting load-dependant brakes gene

    32、rate the load signal using a weighing device. 3.1.2 mechanically operated pneumatic device device or mechanism having both mechanical and pneumatic elements DIN EN 15625:2011-01 EN 15625:2008+A1:2010 (E) 6 3.1.3 hydraulic to pneumatic converter device or mechanism which transforms the hydraulic pres

    33、sure generated by the mass of the vehicle into a pneumatic pressure with a defined transmission ratio 3.1.4 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 int

    34、o a pneumatic pressure with a defined transmission ratio 3.1.5 output signal pressure load continuous pressure Lcp output pressure delivered by the automatic variable load sensing device, which signals the load of the vehicle to the brake control mechanism 3.1.6 supply pressure input pressure of the

    35、 air supply to a pneumatic automatic variable load sensing device NOTE Typically supplied from the vehicles distributor auxiliary reservoir, or from the vehicle distributor output pressure/brake cylinder pressure system. 3.1.7 normal litre Nl unit of mass for gases equal to the mass of 1 l at a pres

    36、sure 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). 3.1.8 sensitivity minimum change of load which causes a variation of the output signal pressure (Lcp), when the change of load (input) is in the same

    37、 direction 3.1.9 hysteresis difference in output signal pressure (Lcp) with the same load, where the load is first rising to a value and then, having been taken past that value, subsequently falls to the same value 3.2 Symbols F kN mechanical force, generated by the share of vehicle weight acting at

    38、 the automatic variable load sensing device 4 Design and manufacture 4.1 General The design and manufacture of the automatic variable load sensing device shall, for all intended operating conditions, take into account the following requirements. DIN EN 15625:2011-01 EN 15625:2008+A1:2010 (E) 7 4.2 F

    39、unctional requirements 4.2.1 Operating requirements The automatic variable load sensing device shall, in all cases, supply a pneumatic output signal pressure (Lcp) which is a function of the load. The transmission of this load signal to the brake control system shall be pneumatic. The method of prod

    40、ucing the pneumatic signal Lcp can be a mechanically operated pneumatic device, a hydraulic to pneumatic converter or an elastomeric to pneumatic converter. Figure 1 indicates the principles of operation of an automatic variable load sensing device. Key 1 automatic variable load sensing device 2 F,

    41、mechanical force, generated by a share of the vehicle weight 3 supply pressure, typically taken from the distributor auxiliary reservoir 4 Lcp, output signal pressure Figure 1 Principles of operation of the automatic variable load sensing device 4.2.2 Characteristics of weighing valves Two character

    42、istics of weighing valves are defined: type 1: (0,8 0,1) bar/10 kN (see Figure 2); type 3: (1,0 0,1) bar/10 kN (see Figure 3). The characteristics for type 1 and type 3 shall be tested in accordance with 6.2.6. NOTE These types are recommended for new interoperable freight wagons. For applications o

    43、ther than interoperable freight wagons other characteristics may be used by agreement between the manufacturer and the customer. DIN EN 15625:2011-01 EN 15625:2008+A1:2010 (E) 8 Key 1 characteristic (nominal value) 2 upper limit of tolerance 3 lower limit of tolerance Figure 2 Characteristic of the

    44、automatic variable load sensing device type 1 Key 1 characteristic (nominal value) 2 upper limit of tolerance 3 lower limit of tolerance Figure 3 Characteristic of the automatic variable load sensing device type 3 DIN EN 15625:2011-01 EN 15625:2008+A1:2010 (E) 9 4.2.3 Mechanical requirements The aut

    45、omatic variable load sensing device shall be designed to operate with at least a static force F of 60 kN without any damage or change of its characteristic. This shall be tested in accordance with 6.2.6. 4.2.4 Leakage The sealing arrangement within the automatic variable load sensing device shall pr

    46、event any unacceptable loss of air. At of (20 5) C the automatic variable load sensing device shall not have a leakage rate greater than 0,005 Nl/min at the normal working pressure. This requirement shall be tested in accordance with 6.2.5.2, 6.2.5.3 and 6.2.5.4. At an environmental temperature of 2

    47、5 C, also at + 70 C, the automatic variable load sensing device shall not have a leakage rate greater than 0,01 Nl/min at the normal working pressure. This requirement shall be tested in accordance with 6.2.7.2, 6.2.7.3 and 6.2.7.4. At 40 C environmental temperature 25 C the automatic variable load

    48、sensing device shall not have a leakage rate greater than 0,1 Nl/min at the normal working pressure. This requirement shall be tested in accordance with 6.2.7.2, 6.2.7.3 and 6.2.7.4. 4.3 Vibrations and shock The automatic variable load sensing device shall be able to operate without restriction unde

    49、r vibration and shock conditions as specified by EN 61373:1999, Category 2. This requirement shall be tested in accordance with 6.2.8. The automatic variable load sensing device shall fulfil the specified requirements during a random vibration test in accordance with EN 61373:1999, Clause 8. The automatic variable load sensing device shall withstand a simulated long life test at increased random vibr


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