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 2010National forewordThis British Standard is the UK implementation of EN 50238:2003, incorporating corrigendum May 2010.The UK participation in its preparation was entrusted by Technical Committee GEL/9, Railway electrotechnical ap
3、plications, to Subcommittee GEL/9/1, Signalling and communications.A list of organizations represented on this subcommittee 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 appli
4、cation.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 50238:2003This British Standard was published under the authority of the Standards Policy and Strategy Committee on14 May 2003 BSI 2010Amendments/corrigenda issued since publicationDate Comments 31 August 2
5、010 Implementation of CENELEC corrigendum May 2010; Addition of Annex ZZISBN 978 0 580 71764 2EUROPEAN STANDARD EN 50238 NORME EUROPENNE EUROPISCHE NORM February 2003 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee f
6、r Elektrotechnische 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 betw
7、een rolling 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 bo
8、und 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 alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the
9、Central 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 sam
10、e status 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
11、 United Kingdom. Incorporating corrigendum May 2010 2 Foreword This European Standard was prepared by SC 9XA, Communication, signalling and processing systems, of Technical Committee CENELEC TC 9X, Electrical and electronic applications for railways. The text of the draft was submitted to the formal
12、 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 Trade Association and supports the essential requirements of Directive 96/48/EC. The following dates were fixed: - lates
13、t 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 standards conflicting with the EN have to be withdrawn (dow) 2005-12-01 This European Standard is intended to be read
14、 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 50238:2003 (E) 3 Contents Page Introduction. 5 1 Scope 5 2 Normative references . 7 3 Definitions 7 4 Acceptance pro
15、cess . 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 identification. 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 sys
16、tems 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 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
17、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 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 Chara
18、cterisation 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 BS EN 50238:2003EN 50238:2003 (E) 4 Annex A (informative) Guidelines for the determination of susceptibility of train detection systems. 24 Annex B (informative)
19、 Guidelines for the measurement of rolling stock characteristics . 32 Annex C (informative) Factors 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 p
20、rocess . 8 Figure 3 The acceptance process. 9 Figure 4 Relationship between gabarit and permissible 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
21、 rail 24 Figure A.4 Double rail track circuit 25 Figure A.5 Double rail track circuit with broken 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.
22、27 Figure A.9 Equivalent circuit for previous figure 27 Figure A.10 Example of radiated interference. 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 in
23、terference current generated by rolling stock. 35 Figure D.3 Circulation of interference current generated by the substation 35 Annex ZZ (informative) Coverage of Essential Requirements of EC Directives. 37 BS EN 50238:2003EN 50238:2003 (E) 5 Introduction This European Standard defines a process to
24、obtain the assurance that specific rolling stock operating 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.
25、Unfortunately it is not possible to establish general 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
26、consideration of the problem of compatibility of rolling 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 fo
27、r maximum levels of interference permitted, but for convenient 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 currenttr
28、ansfer functionsElectromagnetic fieldtransfer functionsTrack 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 componen
29、ts, i.e. the configuration of the system. Therefore the problems concerning track circuits and axle counters or wheel detection systems will be looked at separately. BS EN 50238:2003EN 50238:2003 (E) 6 For determining the susceptibility of signalling systems, laboratory/simulation testing methods as
30、 well as methods 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 rai
31、lways, it is 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,
32、 e.g. switching 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) 7 1 Scope The scope of this European S
33、tandard 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 traction power supplies and th
34、e 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 generally applicable to those combina
35、tions 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 stock, traction power supply or tra
36、in 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 the scope of this European Stand
37、ard. 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, subsequent amendments to or revi
38、sions 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 Electromagnetic compatibility EN 501
39、26 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 requirements for the competence o
40、f 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 550 Power supply installations f
41、or 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 (E) 8 3.2 compatibility case a
42、 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 certificate of acceptance written autorisation from the accepting body that the com
43、patibility 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 rolling stock. Degraded modes will normally allow the rolling stock to complete
44、 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 responsible for the safety of the track and signalling systems 3.7 right side failu
45、re 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 stock 3.9 wheel detector a sensor which detects the passage of a wheel. I
46、t 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 process 4.1 Overview The parties concerned in the acceptance process are
47、 shown in Figure 2: BS EN 50238:2003EN 50238:2003 (E) 9 AcceptanceRailwayinfrastructureauthority No. 1AcceptingbodyIndustry(Signalling)Industry(Rolling stock)LaboratoryLaboratoryRolling stockoperatorAcceptancecertificateCompatibilitycaseRailwayinfrastructureauthority No. 2Figure 6 The parties concer
48、ned in the acceptance process 4.2 Responsibilities The responsibility for demonstrating compatibility between rolling stock, train detection and traction power supply systems, and for maintaining it over the full life cycle of the equipment, is shared between those parties responsible for the partic
49、ular railway infrastructure and the particular rolling stock. Specific responsibilities for a given compatibility case, including the party taking the lead role, shall be explicit. The documentation, in the form of a compatibility case, shall be submitted to an accepting body, and shall be reviewed when any modification is carried out. 4.2.1 Railway infrastructure authority For a defined route (the application of interest), the railway infrastructure authority should
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