BS EN 15437-2-2012 Railway applications Axlebox condition monitoring Interface and design requirements Performance and design requirements of on-board systems for temperature monit.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15437-2:2012Railway applications Axlebox condition monitoring Interface and design r e q u i r e m e n t sPart 2: Performance and design r e q u i r e m e n t s o f o n - b

2、 o a r d s y s t e m s for temperature monitoringBS EN 15437-2:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15437-2:2012. The UK participation in its preparation was entrusted to TechnicalCommittee RAE/3/-/5, Railway Applications - Hot Axle Box Detectors

3、. 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. The British Standards Institution 2012. Published by BSI Sta

4、ndards Limited 2012.ISBN 978 0 580 59784 8 ICS 45.060.01 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2012.Amendments issued since publicationDat

5、e T e x t a f f e c t e dBS EN 15437-2:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15437-2 September 2012 ICS 45.060.01 English Version Railway applications - Axlebox condition monitoring - Interface and design requirements - Part 2: Performance and design requirements of on-board syste

6、ms for temperature monitoring Applications ferroviaires - Surveillance des botes dessieux - Exigences lies aux interfaces - Partie 2: Exigences de performance et de conception des systmes embarqus de surveillance de la temprature Bahnanwendungen - Zustandsberwachung von Radsatzlagern - Leistungsanfo

7、rderungen - Teil 2: Leistungs- und Konstruktionsanforderungen von fahrzeugbasierten Systemen fr TemperaturberwachungThis European Standard was approved by CEN on 12 August 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this E

8、uropean 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-CENELEC Management Centre or to any CEN member. This European Standard exists in three official vers

9、ions (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-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria,

10、 Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, S

11、witzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Member

12、s. Ref. No. EN 15437-2:2012: EBS EN 15437-2:2012EN 15437-2:2012 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .64 Equipment and characteristics 64.1 Design requirements .64.2 Reliability 74.3 Description of alarm levels .75 Monitoring performan

13、ce .75.1 General 75.2 Required information 75.2.1 Basic .75.2.2 Advanced 75.3 Monitoring capability .85.3.1 Basic on-board monitoring system .85.3.2 Advanced on-board monitoring system 85.4 Functional Safety .96 Operation and interface 96.1 Operation 96.1.1 Basic on-board monitoring systems .96.1.2

14、Advanced on-board monitoring systems 96.2 Interface . 106.2.1 Basic on-board monitoring system 106.2.2 Advanced on-board monitoring system . 107 Assessment methods and criteria 10Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57

15、/EC . 12Bibliography . 15BS EN 15437-2:2012EN 15437-2:2012 (E) 3 Foreword This document (EN 15437-2:2012) 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, eith

16、er by publication of an identical text or by endorsement, at the latest by March 2013, and conflicting national standards shall be withdrawn at the latest by March 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or C

17、ENELEC shall not be held responsible for identifying any or all such patent rights. 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). For relationship with EU Direct

18、ive(s), see informative Annex ZA, which is an integral part of this document. EN 15437 “Railway applications - Axlebox condition monitoring - Interface and design requirements” is comprised of the following parts: Part 1: Track side equipment and rolling stock axlebox; Part 2: Performance and design

19、 requirements of on-board systems for temperature monitoring (the present document). According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Re

20、public, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS

21、 EN 15437-2:2012EN 15437-2:2012 (E) 4 Introduction Failed wheelset bearings on rolling stock create a hazard to the safe operation of the railway. If a bearing fails while rolling stock is in service there is the potential for a catastrophic event. A catastrophic event may result in fatalities, seve

22、re damage to rolling stock and/or the infrastructure and a risk that rolling stock may derail and/or a fire may develop. One indication that a bearing is about to fail is a rise in the heat generated by the bearing. Bearings that are about to fail may, therefore, be detected by monitoring their temp

23、erature to identify an unacceptable rise. This part of EN 15437 covers the monitoring of axlebox bearing temperature by on-board monitoring systems. According to the application, these may be considered to be basic systems or advanced systems. In most cases, rolling stock axleboxes continue to be mo

24、nitored by trackside Hot AxleBox Detectors HABD which is the subject of Part 1 of EN 15437. The monitoring system is fitted on the rolling stock and is able to function autonomously from trackside monitoring systems which are ground-based. In contrast to trackside monitoring systems, the detection c

25、haracteristic may be adapted to the particular vehicle design, such that the alarm levels employed are configured depending on the bearing properties, sensor arrangement, vehicle type, network characteristics, etc. The use of on-board monitoring may also provide a solution for overcoming constraints

26、 related to bogie design or other aspects of vehicle design or operation which may prevent effective monitoring by means of the track-side monitoring systems. Other devices which apply functionally equivalent alternatives (for example based on the principle of vibration monitoring) may be available

27、and normalized elsewhere, such as in other parts of this series of European Standards. BS EN 15437-2:2012EN 15437-2:2012 (E) 5 1 Scope This European Standard defines the minimum performance requirements of on-board monitoring systems for axlebox condition monitoring by means of temperature measureme

28、nts. This European Standard refers to temperature monitoring of the axlebox. However, the design may be such that the rolling bearing itself is monitored directly. The requirements of this European Standard are intended to apply equally to basic monitoring systems for monitoring the axlebox temperat

29、ure through to more technically complex systems that may employ a combination of mechatronics. To ensure the compatibility of monitoring systems and the effective monitoring functions, this European Standard defines the requirements in the following areas: equipment and characteristics; monitoring p

30、erformance; operation and interface. This part of EN 15437 does not include: systems that do not give an indication to the driver; how an on-board monitoring system is structured and how it measures the temperature and identifies axlebox position. This is considered part of equipment design and not

31、part of the functional requirements set out in this standard; operational requirements for acting on the information reported by the on-board monitoring system; operational requirements for conflict of information between trackside monitoring systems and on-board monitoring systems; maintenance requ

32、irements for on-board temperature monitoring systems. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest e

33、dition of the referenced document (including any amendments) applies. EN 50121-2, Railway applications Electromagnetic compatibility Part 2: Emission of the whole railway system to the outside world EN 50125-1, Railway applications Environmental conditions for equipment Part 1: Equipment on board ro

34、lling stock EN 50126-1, Railway applications The specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS) Part 1: Basic requirements and generic process EN 50128, Railway applications Communications, signalling and processing systems Software for railway contro

35、l and protection systems BS EN 15437-2:2012EN 15437-2:2012 (E) 6 EN 50129, Railway applications Communication, signalling and processing systems Safety related electronic systems for signalling EN 50155, Railway applications Electronic equipment used on rolling stock EN 61373, Railway applications R

36、olling stock equipment Shock and vibration tests (IEC 61373) EN 61508 (all parts), Functional safety of electrical/electronic/programmable electronic safety-related systems (IEC 61508 (all parts) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.

37、1 axlebox assembly of box housing, rolling bearings, sealing and grease 3.2 bearing axle journal bearing or bearing assembly on a rail vehicle axle that transmits a proportion of the weight of the rail vehicle directly to the wheel set 3.3 rolling bearing bearing operating with rolling motion betwee

38、n the parts, supporting load and moving in relation to each other 3.4 on-board monitoring system system that is capable of detecting a temperature of an axlebox that is indicative of the health of that axlebox and indicates when acceptable temperature conditions have been exceeded 3.5 Safety Integri

39、ty Level (SIL) one of a number of defined discrete levels to specify the safety integrity requirements of the safety functions to be allocated to the safety related systems Note 1 to entry: The Safety Integrity Level with the highest figure has the highest level of safety integrity. 4 Equipment and

40、characteristics 4.1 Design requirements The equipment shall respect the applicable requirements regarding the environmental conditions for equipment on-board rolling stock as set out in EN 50125-1. In particular, vibration design of electrical and electronic equipment, as well as their fixing, assoc

41、iated with the measurements on the bearing unit or on the axle box shall respect the requirements set out in EN 61373. The equipment shall respect the applicable requirements regarding electronic equipment as set out in EN 50155. On-board monitoring systems shall not interfere or influence the behav

42、iour of trackside equipment or other train-borne equipment. NOTE This document does not set out the architecture of the environment in which an on-board temperature monitoring system may be installed. The range of architectures may differ significantly (from a freight wagon to a high BS EN 15437-2:2

43、012EN 15437-2:2012 (E) 7 speed EMU) and therefore the level of protection required for each installation may be quite different. It is the responsibility of the system installer to establish if the specification of an on-board temperature monitoring system (including any protection for interference

44、from external sources such as electricity or heat) is suitable for the architecture in which it is to be installed and to perform. 4.2 Reliability The reliability of the on-board monitoring system shall be expressed according to the methods set out in EN 50129. This is to enable the Railway Undertak

45、ing (or other responsible entity) to satisfy their requirements when making a risk analysis (concerning rolling stock running with an undetected hot axlebox), for example as described in EN 50126-1. 4.3 Description of alarm levels Temperature limits shall be determined for alarm levels depending on

46、the bearing properties, sensor arrangement, vehicle type, network characteristics, etc. as follows: Alarm level 1 (“hot” alarm): The temperature limit, indicative of the condition of a bearing, above which damage will occur to the bearing and/or its functionality, with the potential to lead to a haz

47、ardous event. Alarm level 2 (“warm” alarm): The temperature limit, indicative of the condition of a bearing, above which accelerated deterioration of its serviceability is anticipated to occur. The axle box tests undertaken as part of the requirements set out in EN 12082 can provide an indication of

48、 the values to which the alarm levels should be set. However, the range of operational conditions can be different (grease, loads, speeds, forces, etc.) to those of the tests and therefore the final choice of values should account for operational condition. NOTE The design and function of trackside

49、HABDs means that the differential alarm is required. However, because the on-board monitoring system is specific to an axlebox, a differential alarm is not required. This does not prevent installing an on-board system that includes a differential alarm. 5 Monitoring performance 5.1 General To cater for different requirements, this standard sets out requirements for both basic and advanced on-board monitoring systems. The essential requirement is that the on-board