1、BRITISH STANDARD BS EN 50238:2003Railway applications Compatibility between rolling stock and train detection systemsICS 29.280; 45.060.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3
2、g38g50g51g60g53g44g42g43g55g3g47g36g58Incorporating corrigendum May 2010BS EN 50238-1:2003Incorporating corrigenda May 2010 and November 2014Part 1: GeneralBS EN 50238-1:2003ISBN 978 0 580 88381 1Amendments/corrigenda issued since publicationDate Comments31 August 2010 Implementation of CENELEC corr
3、igendum May 2010; Addition of Annex ZZ31 December 2014 Implementation of CENELEC corrigendum November 2014: title updated, numbering of EN identifier updatedThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 14 May 2003 The British Standards Ins
4、titution 2014. Published by BSI Standards Limited 2014National forewordThis British Standard is the UK implementation of EN 50238-1:2003, incorporating corrigenda May 2010 and November 2014.The UK participation in its preparation was entrusted by Technical Committee GEL/9, Railway electrotechnical a
5、pplications, to Subcommittee GEL/9/1, Signalling and communications.A list of organizations represented on this subcommittee can be obtained on request to its secretary.The publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct appli
6、cation.Compliance with a British Standard cannot confer immunity from legal obligations.EUROPEAN STANDARD EN 50238 NORME EUROPENNE EUROPISCHE NORM February 2003 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elek
7、trotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50238:2003 E ICS 29.180; 45.060.10 English version Railway applications Compatibility between ro
8、lling stock and train detection systems Applications ferroviaires Compatibilit entre matriel roulant et systmes de dtection de train Bahnanwendungen Kompatibilitt zwischen Fahrzeugen und Gleisfreimeldesystemen This European Standard was approved by CENELEC on 2002-12-01. CENELEC members are bound to
9、 comply with the CEN/CENELEC Internal Regulations 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 Centra
10、l Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same stat
11、us as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and Unite
12、d Kingdom. Incorporating corrigendum May 2010EN 50238-1February 2003Railway applications Compatibility between rolling stock and train detection systems Part 1: General 2 Foreword This European Standard was prepared by SC 9XA, Communication, signalling and processing systems, of Technical Committee
13、CENELEC TC 9X, Electrical and electronic applications for railways. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50238 on 2002-12-01. This European Standard was prepared under a mandate given to CENELEC by the European Commisssion and the European Free Tra
14、de Association and supports the essential requirements of Directive 96/48/EC. The following dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2003-12-01 - latest date by which the national
15、standards conflicting with the EN have to be withdrawn (dow) 2005-12-01 This European Standard is intended to be read in conjunction with the EN 50121 series. Annexes designated “informative” are given for information only. In this standard annexes A, B, C and D are informative. _ BS EN 50238:2003EN
16、 50238:2003 (E)BS EN 50238-1:2003EN 50238-1:2003 (E) - 2 - 3 Contents Page Introduction. 5 1 Scope 5 2 Normative references . 7 3 Definitions 7 4 Acceptance process . 8 4.1 Overview 8 4.2 Responsibilities 9 4.3 Acceptance process. 9 4.4 Compatibility case 11 4.5 Quality management 11 4.6 Route ident
17、ification. 11 4.7 Characterisation. 11 4.8 Tests 12 4.9 Compatibility analysis. 12 4.10 Certificate of acceptance . 13 5 Characterisation of train detection systems 13 5.1 Objective of procedure. 13 5.2 Physical compatibility. 13 5.3 Electromagnetic compatibility 14 5.4 Factor of safety 17 5.5 Track
18、 circuit susceptibility 17 5.6 Wheel detector susceptibility . 17 5.7 Train detection system gabarit. 18 5.8 Interference signal generated by rolling stock and substations. 18 5.9 Test report 19 6 Characterisation of rolling stock. 20 6.1 Objectives of procedure . 20 6.2 Description of rolling stock
19、 and factors affecting its characteristics. 20 6.3 Configuration (design status). 20 6.4 Test plan 20 6.5 Test report 22 6.6 Archive of test results. 22 7 Characterisation of traction power supply systems . 22 7.1 Objective 22 7.2 D.C. traction power supplies 23 7.3 A.C. traction power supplies 23 B
20、S EN 50238:2003EN 50238:2003 (E)BS EN 50238-1:2003EN 50238-1:2003 (E)- 3 - 4 Annex A (informative) Guidelines for the determination of susceptibility of train detection systems. 24 Annex B (informative) Guidelines for the measurement of rolling stock characteristics . 32 Annex C (informative) Factor
21、s affecting rolling stock characteristics 34 Annex D (informative) D.C. traction power supplies . 35 Figure 1 Sources of electromagnetic interference 4 Figure 2 The parties concerned in the acceptance process . 8 Figure 3 The acceptance process. 9 Figure 4 Relationship between gabarit and permissibl
22、e interference . 11 Figure A.1 Interference mechanism with rails intact . 23 Figure A.2 Interference mechanism with self-revealing broken rail 23 Figure A.3 Interference mechanism with unrevealed broken rail 24 Figure A.4 Double rail track circuit 25 Figure A.5 Double rail track circuit with broken
23、rail . 25 Figure A.6 Interference mechanism due to voltage between axles Case 1. 26 Figure A.7 Interference mechanism due to voltage between axles Case 2. 26 Figure A.8 Effect of inter-vehicle current. 27 Figure A.9 Equivalent circuit for previous figure 27 Figure A.10 Example of radiated interferen
24、ce. 28 Figure A.11 Sensitive zone of wheel detector. 29 Figure B.1 Example of system for measurement of interference currents 31 Figure D.1 Rolling stock with DC supply . 35 Figure D.2 Circulation of interference current generated by rolling stock . 35 Figure D.3 Circulation of interference current
25、generated by the substation 35 Annex ZZ (informative) Coverage of Essential Requirements of EC Directives. 37 BS EN 50238:2003EN 50238:2003 (E)BS EN 50238-1:2003EN 50238-1:2003 (E) - 4 - 5 Introduction This European Standard defines a process to obtain the assurance that specific rolling stock opera
26、ting on a specific route does not interfere with train detection systems installed on this route. Compatibility problems between train detection systems and rolling stock are a significant obstacle to cross-acceptance of rolling stock in Europe. Unfortunately it is not possible to establish general
27、rules for the maximum levels of interference allowed, valid for every country. This is due to the great diversity of rolling stock, power supply and return current systems, and train detection systems installed in Europe. This diversity leads to consideration of the problem of compatibility of rolli
28、ng stock and train detection systems for specific routes to avoid unnecessarily restrictive specifications. Compatibility is determined by both physical and electromagnetic considerations. With regard to EMC, the need is not for general values for maximum levels of interference permitted, but for co
29、nvenient methods by which to specify the level of interference allowed for operation on specific routes. Interference may be caused by rail currents, electromagnetic fields, differential voltage between axles, as shown in Figure 1: Rail currenttransfer functionsElectromagnetic fieldtransfer function
30、sTrack circuit OthersWheeldetectorFeederstationFigure 5 Sources of electromagnetic interference In practice, the susceptibility of the system is determined by the sensitivity of individual components of the system, the application of the components, i.e. the configuration of the system. Therefore th
31、e problems concerning track circuits and axle counters or wheel detection systems will be looked at separately. BS EN 50238:2003EN 50238:2003 (E)BS EN 50238-1:2003EN 50238-1:2003 (E)- 5 - 6 For determining the susceptibility of signalling systems, laboratory/simulation testing methods as well as met
32、hods to conduct tests on the “real railway” are proposed. Modelling enables worst-case conditions to be simulated. In addition, particular test sites are used because, from experience, they are known to provide the test evidence required. Then, taking account of the experience of the railways, it is
33、 possible to establish a general method for determining the susceptibility of train detection systems, described in this European Standard. Before measuring the interference level on rolling stock, a sufficient knowledge of the electric circuit diagram of the power equipment is required, e.g. switch
34、ing frequencies of on-board static converters, type of regulation used for power converters, resonant frequency of each filter, operating limits under high and low supply voltages, downgraded modes of operation etc. BS EN 50238:2003EN 50238:2003 (E)BS EN 50238-1:2003EN 50238-1:2003 (E) - 6 - 7 1 Sco
35、pe The scope of this European Standard is to describe a procedure for mutual acceptance of rolling stock to run over specific routes. It describes the methods of measurement of interference currents, the methods of measurement of the susceptibility of train detection systems, the characterisation of
36、 traction power supplies and the procedure for acceptance. The result of the acceptance procedure is a structured justification document referred to as a “compatibility case”, which documents the evidence that the conditions for compatibility have been satisfied. This European Standard is not genera
37、lly applicable to those combinations of rolling stock, traction power supply and train detection system which were accepted as compatible prior to the issue of this European Standard. However, as far as is reasonably practicable, this European Standard may be applied to modifications of rolling stoc
38、k, traction power supply or train detection systems which may affect compatibility. The scope of the compatibility case is restricted to the demonstration of compatibility of rolling stock with a train detection systems characterisation (e.g. gabarit). Radio based signalling systems are not within t
39、he scope of this European Standard. 2 Normative references This European Standard incorporates by dated or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed below. For dated references, s
40、ubsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 50121 Series Railway applications Elect
41、romagnetic compatibility EN 50126 Railway applications The specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS) EN 50163 Railway applications Supply voltages of traction systems EN/ISO 9001 Quality management systems Requirements EN ISO/IEC 17025 General re
42、quirements for the competence of testing and calibration laboratories ORE B108/1 Unification of air-conditioning and electrical equipment in coaches UIC 737-3 The application of thyristors in railway technology: Measures for the prevention of functional disturbances in signalling installations UIC 5
43、50 Power supply installations for passenger stock 3 Definitions For the purposes of this European Standard, the following definitions apply: 3.1 accepting body the body responsible for the evaluation of the compatibility case and the issue of a certificate of acceptance BS EN 50238:2003EN 50238:2003
44、 (E)BS EN 50238-1:2003EN 50238-1:2003 (E)- 7 - 8 3.2 compatibility case a suite of documents which records the evidence demonstrating the degree of compatibility between rolling stock, traction power supplies and train detection systems for a specific route or specific railway network 3.3 certificat
45、e of acceptance written autorisation from the accepting body that the compatibility case is acceptable to allow the new or modified systems to enter service (This may be qualified) 3.4 degraded modes modes of operation in the presence of faults which have been anticipated in the design of the rollin
46、g stock. Degraded modes will normally allow the rolling stock to complete its journey 3.5 gabarit the maximum permissible levels of interference signal, with respect to frequencies and duration, to which a train detection system may be exposed 3.6 railway infrastructure authority the body responsibl
47、e for the safety of the track and signalling systems 3.7 right side failure a failure of a signalling system which results in a more restrictive condition for the movement of traffic than is appropriate 3.8 rolling stock operator the body responsible for the operation and maintenance of the rolling
48、stock 3.9 wheel detector a sensor which detects the passage of a wheel. It may be used as part of an axle counter system or as a treadle 3.10 wrong side failure a failure of a signalling system which results in a less restrictive condition for the movement of traffic than is appropriate 4 Acceptance
49、 process 4.1 Overview The parties concerned in the acceptance process are shown in Figure 2: BS EN 50238:2003EN 50238:2003 (E)BS EN 50238-1:2003EN 50238-1:2003 (E) - 8 - 9 AcceptanceRailwayinfrastructureauthority No. 1AcceptingbodyIndustry(Signalling)Industry(Rolling stock)LaboratoryLaboratoryRolling stockoperatorAcceptancecertificateCompatibilitycaseRailwayinfrastructureauthority No. 2Figure 6 The parties concerned in the acceptance process 4.2 Responsibilities The
