1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationRailway applications Fixedinstallations Process, measuresand demonstration of safety forelectric traction systemsDD CLC/TS 50562:2011National forewordThis Draft for Development i
2、s the UK implementation of CLC/TS 50562:2011.This publication is not to be regarded as a British Standard.It is being issued in the Draft for Development series of publications and is ofa provisional nature. It should be applied on this provisional basis, so thatinformation and experience of its pra
3、ctical application can be obtained.Comments arising from the use of this Draft for Development are requestedso that UK experience can be reported to the European organization responsible for its conversion to a European standard. A review of this publication will be initiated not later than three ye
4、ars after its publication bythe European organization so that a decision can be taken on its status.Notification of the start of the review period will be made in an announce-ment in the appropriate issue of Update Standards.According to the replies received by the end of the review period, the resp
5、onsible BSI Technical Committee will decide whether to support the conversion into a European Standard, to extend the life of the TechnicalSpecification or to withdraw it. Comments should be sent to the Secretary ofBSI Technical Committee GEL/9 at British Standards House, 389 Chiswick HighRoad, Lond
6、on W4 4AL.The UK participation in its preparation was entrusted by Technical CommitteeGEL/9, Railway Electrotechnical Applications, to Subcommittee GEL/9/3,Railway Electrotechnical Applications Fixed Equipment.A list of organizations represented on this committee can be obtained onrequest to its sec
7、retary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2011ISBN 978 0 580 72990 4ICS 29.280Compliance with a British Standard cannot confer immunity fromlegal obligations.This Draft for Development was pub
8、lished under the authority of theStandards Policy and Strategy Committee on 30 November 2011.Amendments issued since publicationAmd. No. Date Text affectedDRAFT FOR DEVELOPMENTDD CLC/TS 50562:2011TECHNICAL SPECIFICATION CLC/TS 50562 SPCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION August 2011 CENELEC
9、 European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide f
10、or CENELEC members. Ref. No. CLC/TS 50562:2011 E ICS 29.280 English version Railway applications - Fixed installations - Process, measures and demonstration of safety for electric traction systems Applications ferroviaires - Installations fixes - Processus, mesures et dmonstration de la scurit pour
11、les installations fixes de traction lectrique Bahnanwendungen - Ortsfeste Anlagen - Prozess, Manahmen und Nachweisfhrung fr die Sicherheit in der Bahnstromversorgung This Technical Specification was approved by CENELEC on 2011-05-24. CENELEC members are required to announce the existence of this TS
12、in the same way as for an EN and to make the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Repub
13、lic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DD CLC/TS 50562:2011CLC/TS 50562:2011 2 Contents
14、 Foreword 4 1 Scope 52 Normative references 53 Terms and definitions . 74 Safety process . 94.1 General 94.2 System definition . 114.3 Hazard identification 114.4 Risk assessment . 124.5 Measures 124.6 Evaluation . 124.7 Demonstration of safety 125 Generic risk assessment 136 System definition 136.1
15、 Electric traction system . 146.2 Substations and switching stations . 146.3 Contact line system . 166.4 Return circuit . 166.5 Interfaces of the electric traction system . 176.6 Interfaces to substations and switching stations . 176.7 Interfaces to contact line system . 186.8 Interfaces to return c
16、ircuit 197 Hazard identification . 208 Measures 208.1 General 208.2 Substations and switching stations . 218.3 Contact line system . 228.4 Return circuit . 229 Safety evaluation for the reference system 22Annex A (informative) Hazard log resulting from the generic risk assessment . 24A.1 General 24A
17、.2 Risk assessment process . 24A.3 Hazard Log 26Annex B (informative) Abbreviations and acronyms . 42Annex C (informative) Documents and standards correlated to this document 43Bibliography 47DD CLC/TS 50562:2011 3 CLC/TS 50562:2011 Figures Figure 1 Safety process for conventional electric traction
18、system . 10Figure 2 Electric traction system and its interfaces . 14Tables Table 1 List of foreseeable top-level hazards and accidents . 11Table A.1 List of foreseeable top-level hazards and accidents . 25Table A.2 Fields of hazard log . 26Table A.3 Substations and switching stations . 27Table A.4 C
19、ontrol and protection, hardware components . 28Table A.5 Control and protection, software 31Table A.6 Contact system 33Table A.7 Return circuit 36Table A.8 Standards referenced in hazard log 37Table B.1 Abbreviations and acronyms . 42Table C.1 List of correlated documents and standards . 43DD CLC/TS
20、 50562:2011CLC/TS 50562:2011 4 Foreword This Technical Specification was prepared by SC 9XC, Electric supply and earthing systems for public transport equipment and ancillary apparatus (Fixed installations), of Technical Committee CENELEC TC 9X, Electrical and electronic applications for railways. I
21、t was circulated for vote in accordance with the Internal Regulations, Part 2, Subclause 11.3.3.3 and was approved by CENELEC as CLC/TS 50562 on 2011-05-24. The following date is proposed: latest date by which the existence of the CLC/TS has to be announced at national level (doa) 2011-11-24 _ DD CL
22、C/TS 50562:2011 5 CLC/TS 50562:2011 1 Scope This Technical Specification defines the process, measures and demonstration of safety for the electric traction systems of railways, guided mass transport systems, trolleybus systems. The systems can be elevated, at-grade and underground. It does not appl
23、y to underground mine traction systems, cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition structures) in so far as these are not supplied directly or via transformers from the contact line system and are not endangered by the tractio
24、n power supply system, suspended cable cars, funicular railways, magnetic levitated systems, railways with inductive power supply without contact system, railways with buried contact system that is required to be energised only below the train to ensure safety, but it can support the safety consider
25、ations of such systems as far as applicable. This Technical Specification refers to standards and common practice to demonstrate safety including the functional aspects. This Technical Specification applies to the erecting of new lines and to all significant changes of existing lines. 2 Normative re
26、ferences The following referenced 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 50110 (all parts), Operation of elect
27、rical installations EN 50119:2009, Railway applications Fixed installations Electric traction overhead contact lines EN 50122 (all parts), Railway applications Fixed installations Electrical safety, earthing and the return circuit EN 50122-1:2011, Railway applications Fixed installations Electrical
28、safety, earthing and the return circuit Part 1: Protective provisions against electric shock EN 50123 (all parts), Railway applications Fixed installations D.C. switchgear EN 50124 (all parts), Railway applications Insulation coordination DD CLC/TS 50562:2011CLC/TS 50562:2011 6 CLC/TR / EN 50126 (al
29、l parts), Railway applications The specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS) CLC/TR 50126-2:2007, Railway applications The specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS) Part 2: Guide to the applic
30、ation of EN 50126-1 for safety EN 50152 (all parts), Railway applications Fixed installations Particular requirements for a.c. switchgear EN 50153, Railway applications Rolling stock Protective provisions relating to electrical hazards EN 50163, Railway applications Supply voltages of traction syste
31、ms EN 50367, Railway applications Current collection systems Technical criteria for the interaction between pantograph and overhead line (to achieve free access) EN 50388, Railway applications Power supply and rolling stock Technical criteria for the coordination between power supply (substation) an
32、d rolling stock to achieve interoperability CLC/TR 50488, Railway applications Safety measures for personnel working on or near overhead contact lines EN 60255 (all parts), Measuring relays and protection equipment (IEC 60255, all parts) EN 60664 (all parts), Insulation coordination for equipment wi
33、thin low-voltage systems (IEC 60664, all parts) EN 62271-1:2008, High- voltage switchgear and controlgear Part 1: Common specifications (IEC 62271-1:2007) EN 62305 (all parts), Protection against lightning (IEC 62305, all parts) DD CLC/TS 50562:2011 7 CLC/TS 50562:2011 3 Terms and definitions For th
34、e purposes of this document, the following terms and definitions apply. 3.1 contact line system support network for supplying electrical energy from substations to electrically powered traction units, which covers overhead contact line systems and conductor rail systems; the electrical limits of the
35、 system are the feeding point and the contact point to the current collector NOTE The mechanical system may comprise the contact line, structures and foundations, supports and any components supporting or registering the conductors, head and cross spans, tensioning devices, along-track feeders, rein
36、forcing feeders, and other lines like earth wires and return conductors as far as they are supported from contact line system structures, any other equipment necessary for operating the contact line, conductors connected permanently to the contact line for supply of other electrical equipment such a
37、s lights, signal operation, point control and point heating. EN 50119:2009, 3.1.1 3.2 conventional electric traction system system constructed, operated and maintained according to relevant standards and common practice 3.3 current collector zone CCZ zone whose limits are in general not exceeded by
38、an energized collector no longer in contact with the contact line or broken collector and its fragments EN 50122-1:2011, 3.5.10 3.4 electric traction system railway electrical distribution network used to provide energy for rolling stock NOTE The system may comprise contact line systems, return circ
39、uit of electric traction systems, running rails of non electric traction systems, which are in the vicinity of, and conductively connected to the running rails of an electric traction system, electrical installations, which are supplied from contact lines either directly or via a transformer, electr
40、ical installations in substations, which are utilized solely for distribution of power directly to the contact line, electrical installations of switching stations. EN 50122-1:2011, 3.4.1 3.5 electrical safety freedom from unacceptable risk of harm caused by electrical systems EN 50122-1:2011, 3.1.1
41、 DD CLC/TS 50562:2011CLC/TS 50562:2011 8 3.6 overhead contact line zone OCLZ zone whose limits are in general not exceeded by a broken overhead contact line EN 50122-1:2011, 3.5.9 3.7 return cable conductor connecting the running rails or other parts of the return circuit to the substation NOTE Simi
42、lar to IEC 60050-811-35-04. EN 50122-1:2011, 3.3.5 3.8 return circuit all conductors which form the intended path for the traction return current under operation and fault conditions NOTE The conductors may be running rails, return conductor rails, return conductors, return cables. EN 50122-1:2011,
43、3.3.1, mod. 3.9 return conductor conductor paralleling the track return system and connected to the running rails at periodic intervals EN 50122-1:2011, 3.3.3 3.10 switchgear and controlgear general term covering switching devices and their combination with associated control, measuring, protective
44、and regulating equipment, also assemblies of such devices and equipment with associated interconnections, accessories, enclosures and supporting structures EN 62271-1:2008, 3.1.1 3.11 (effective) touch voltage Utevoltage between conductive parts when touched simultaneously by a person or an animal N
45、OTE 1 The value of the effective touch voltage can be appreciably influenced by the impedance of the person or the animal in electric contact with these conductive parts. IEC 60050-195-05-11 NOTE 2 The conductive path through the body is conventionally from hand to both feet (horizontal distance of
46、1 m) or from hand to hand. EN 50122-1:2011, 3.1.3 3.12 track circuit electrical circuit of which the rails of a track section form a part, with usually a source of current connected at one end and a detection device at the other end for detecting whether this track section is clear or occupied by a
47、vehicle NOTE In a continuous signalling system, the track circuit may be used to transmit information between the ground and the train. DD CLC/TS 50562:2011 9 CLC/TS 50562:2011 4 Safety process 4.1 General The design, construction, operation and maintenance of electric traction systems follow the re
48、levant standards to ensure safety. The safety process itself follows CLC/TR / EN 50126 series over the complete life cycle. This clause describes how to define the subsystem electric traction system and the relevant interfaces, identify hazards, apply measures, demonstrate an acceptable level of safety. For the application of this Technical Specification, the differences of the system under consideration and the reference system described in Clause 6 shall be analysed. The results in terms of measu
