1、January 2011 Translation by DIN-Sprachendienst.English price group 13No 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!$m0“1741358www.din.deDDIN EN 15612Railway applications Braking Brake pipe accelerator valve (includes Amendment A1:2010)English translation of DIN EN 15612:2011-01Bahnanwendungen Bremse Schnellbremsbeschleunigungsventil (enthlt nderung A1:2010)Englische bersetzung von DIN EN 15612:2011-0
3、1Applications ferroviaires Freinage Valve acclratrice de vidange (Amendement A1:2010 inclus)Traduction anglaise de DIN EN 15612:2011-01SupersedesDIN EN 15612:2010-07www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.3001.11 DIN EN 156
4、12:2011-01 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 the Normenausschuss Fahrweg und Schienenfahrzeuge (Rai
5、lway Standards Committee), Working Committee NA 087-00-03 AA Bremse. Amendments This standard differs from DIN EN 15612:2010-07 as follows: a) the foreword and Annex ZA have been modified; b) Annex ZB has been deleted. Previous editions DIN EN 15612: 2010-07 2 EUROPEAN STANDARD NORME EUROPENNE EUROP
6、ISCHE NORM EN 15612:2008+A1 October 2010 ICS 45.060.01 Supersedes EN 15612:2008English Version Railway applications - Braking - Brake pipe accelerator valve Applications ferroviaires - Freinage - Valve acclratrice de vidange Bahnanwendungen - Bremse - Schnellbremsbeschleunigungsventil This European
7、Standard was approved by CEN on 27 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 stipulate the conditions for giving this European Standard the status of a national standard without any alter
8、ation. 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 Standard exists in three official versions (English, French, German). A version in any other language made by tran
9、slation 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 standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Fran
10、ce, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR
11、 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 15612:2008+A1:2010: EEN 15612:2008+A1:2010 (E) 2 Contents Page Foreword 41 Scope 52 Normative references 53 Terms an
12、d definitions .54 Design and manufacture .64.1 General 64.2 Functional requirements .64.2.1 General 64.2.2 Operating requirements 74.2.3 Train/vehicle behaviour .74.2.4 Affect of overcharge 74.2.5 Affect of individual vehicle .74.2.6 Subsequent emergency application 74.2.7 Sensitivity .74.2.8 Insens
13、itivity to brake pipe pressure fall 74.2.9 Insensitivity to distributor valve quick service device operation .84.2.10 Isolation 84.2.11 Leakage .84.3 Vibration and shocks requirements.84.4 Environment requirements .84.4.1 General 84.4.2 Temperature .94.4.3 Other environmental conditions 94.5 Compres
14、sed air quality 114.6 Service life . 114.7 Fire behaviour . 114.8 External appearance . 114.9 Design requirements regarding pressure stress 114.10 Interfaces . 124.10.1 General . 124.10.2 Mechanical . 124.10.3 Pneumatic 125 Materials 126 Type tests 126.1 General . 126.2 Individual brake pipe acceler
15、ator tests 126.2.1 Test bench for individual brake pipe accelerator tests 126.2.2 Sampling for type tests 136.2.3 Test temperature and air quality . 146.2.4 Procedure for type tests 146.2.5 Operation at extreme temperatures 176.3 Simulated train consist tests . 186.3.1 Simulated train consist test b
16、ench . 186.3.2 Sampling for train consist test 196.3.3 Test temperature and air quality . 196.3.4 Test procedure 197 Routine test and inspection . 208 Documentation 20DIN EN 15612:2011-01 EN 15612:2008+A1:2010 (E) 3 9 Designation 2110 Identification and marking 21Annex ZA (informative) !Relationship
17、 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)“ . 22!deleted text“ Bibliography 28DIN EN 15612:2011-01 EN 15612:2008+A1:20
18、10 (E) 4 Foreword This document (EN 15612:2008+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 an identical text or by endor
19、sement, 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 held responsible for identifyi
20、ng any or all such patent rights. This document includes Amendment 1, approved by CEN on 30 August 2010. This document supersedes EN 15612:2008. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. !This document has been prepared under a mandate give
21、n 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.“ According to the CEN/CENELEC
22、 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, Italy, Latvia, Lithuania,
23、Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. DIN EN 15612:2011-01 EN 15612:2008+A1:2010 (E) 5 1 Scope This European Standard is applicable to brake pipe accelerator valves designed to vent the brake pipe of rail
24、way vehicles when an emergency brake application is initiated, without taking the type of vehicles and track-gauge into consideration. This European Standard specifies the requirements for the design, manufacture and testing of brake pipe accelerator valves. 2 Normative references The following refe
25、renced 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 Braking Generic vocabulary EN 1
26、4601, Railway applications Straight and angled end cocks for brake pipe and main reservoir pipe EN 15355, Railway applications Braking - Distributor valves and distributor-isolating devices EN 50125-1, Railway applications Environmental conditions for equipment Part 1: Equipment on board rolling sto
27、ck EN 60721-3-5:1997, Classification 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 6
28、1373:1999) 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 8573-1:2001, Compressed air Part 1: Contaminants and purity classes 3 Terms and definitions For the purposes of this document, the terms a
29、nd definitions given in EN 14478:2005 and the following apply. 3.1 brake pipe accelerator valve device connected to the brake pipe of a vehicle, which operates in response to seeing a rapid fall in brake pipe pressure to ensure a continuing rapid fall to below 2,5 bar 3.2 braking mode “goods ” braki
30、ng mode “freight” braking mode “G“ braking mode characterized by slow brake application and release times specific for distributor valves used on freight trains for slow speed DIN EN 15612:2011-01 EN 15612:2008+A1:2010 (E) 6 3.3 braking mode “passenger” braking mode “P” braking mode characterized by
31、 fast brake application and release times specific for distributor valves used on trains for passenger traffic 3.4 normal litre Nl unit of mass for gases equal to the mass of 1 l at a pressure of 1,013 2 bar (one atmosphere) and at a standard temperature, often 0 C or 20 C NOTE Airflow is often stat
32、ed in normal litres per minute (Nl/min). 3.5 operating pressure reference input pressure in full release position NOTE This is normally 5 bar brake pipe pressure but can be 4 bar or 6 bar. 3.6 quick service function function of a distributor valve which allows, when applying the brake from stand-by
33、and released position, the local fast venting of brake pipe pressure by a certain specified amount and at a certain specified gradient, to provide pneumatic brake signal transmission through a train 3.7 quick service device device that fulfils the quick service function 3.8 emergency brake applicati
34、on brake pipe pressure fall seen at the accelerator valve as a result of a demand for an emergency brake application from any source 3.9 overcharge increase in brake pipe pressure above normal operating pressure 4 Design and manufacture 4.1 General The design and manufacture of the brake pipe accele
35、rator valves shall take the requirements of this standard into account for all intended operating conditions. 4.2 Functional requirements 4.2.1 General Brake pipe accelerator valves shall be able to operate with all interoperable distributors and existing interoperable brake pipe accelerator valves.
36、 The brake pipe accelerator valve shall be ready to operate when the brake pipe has reached its operating (running) pressure. The brake pipe accelerator valve shall operate in response to a defined rapid fall of brake pipe pressure to ensure a continuing rapid fall to below 2,5 bar. DIN EN 15612:201
37、1-01 EN 15612:2008+A1:2010 (E) 7 4.2.2 Operating requirements The following operating requirements are defined in relation to a 5 bar brake pipe operating (running) pressure. When an emergency brake application occurs, the brake pipe accelerator valves shall create a sufficiently rapid reduction in
38、brake pipe pressure to ensure the rapid increase in brake cylinder pressure on every vehicle in the train set. When the pressure in the brake pipe has fallen quickly to below 2,5 bar, and within no more than 4 s after the brake pipe accelerator valve commences operation, the brake pipe accelerator v
39、alve shall stop venting air in such a way that the brake pipe can rapidly be refilled. This requirement shall be proven by testing in accordance with 6.2.4.4. No functional errors shall occur in the operation of the brake pipe accelerator valve at operating (running) pressures of (5 1) bar. This req
40、uirement shall be proven by testing in accordance with 6.2.4.10. 4.2.3 Train/vehicle behaviour The brake pipe accelerator valve shall exhaust the air from the brake pipe without causing any adverse effect on vehicle/train behaviour. This requirement shall be proven by testing in accordance with 6.3.
41、 4.2.4 Affect of overcharge 4.2.4.1 Overcharge after full service application The brake pipe accelerator valve shall not come into operation due to the effect of an operating pressure overcharge after a full service brake application, which allows a build up of brake pipe pressure above normal opera
42、ting pressure to 6 bar. It shall be taken into account that this overcharge can be present for up to 40 s in braking mode “G” and 10 s in braking mode “P” after a full service application. This requirement shall be proven by testing in accordance with 6.2.4.8. 4.2.4.2 Overcharge starting from operat
43、ing pressure The brake pipe accelerator valve shall not come into operation if the brake pipe pressure, starting from the operating pressure, is raised to 6 bar for 2 s, then is reduced to 5,2 bar in 1 s, followed by a return to the operating pressure at a rate of 0,15 bar in 60 s. This requirement
44、shall be proven by testing in accordance with 6.2.4.9. 4.2.5 Affect of individual vehicle The operation of the brake pipe accelerator valve shall not be affected by an individual vehicle with a brake pipe volume not exceeding 25 l, where a brake pipe accelerator valve is not fitted or the brake has
45、been isolated. This shall apply irrespective of the position of that vehicle in the train consist. This requirement shall be proven by testing in accordance with 6.3. 4.2.6 Subsequent emergency application The brake pipe accelerator valve shall come into operation when an emergency brake application
46、 is made after a full service brake application. This requirement shall be proven by testing in accordance with 6.2.4.7. 4.2.7 Sensitivity The brake pipe accelerator valve shall come into operation no later than 2 s after the pressure in the brake pipe, venting to atmosphere, has fallen from 5 bar t
47、o 3,2 bar within 3 s. This requirement shall be proven by testing in accordance with 6.2.4.4. 4.2.8 Insensitivity to brake pipe pressure fall The brake pipe accelerator valve shall not come into operation when the pressure in the brake pipe falls uniformly from 5 bar to 3,2 bar over 6 s with the dis
48、tributor inoperative. Continuing the pressure fall down to DIN EN 15612:2011-01 EN 15612:2008+A1:2010 (E) 8 2,5 bar shall not cause the brake pipe accelerator valve to operate. This requirement shall be proven by testing in accordance with 6.2.4.5. 4.2.9 Insensitivity to distributor valve quick serv
49、ice device operation The brake pipe accelerator valve shall not operate during the initial stage of service braking due to operation of the distributor valve internal quick service device. This requirement shall be proven by testing in accordance with 6.2.4.6. 4.2.10 Isolation 4.2.10.1 If the brake pipe accelerator valve is incorporated in t
