IEC 62128-2-2013 Railway applications - Fixed installations - Electrical safety earthing and the return circuit - Part 2 Provisions against the effects of stray.pdf

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1、 IEC 62128-2 Edition 2.0 2013-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Railway applications Fixed installations Electrical safety, earthing and the return circuit Part 2: Provisions against the effects of stray currents caused by d.c. traction systems Applications ferroviaires Installations fi

2、xes Scurit lectrique, mise la terre et circuit de retour Partie 2: Mesures de protection contre les effets des courants vagabonds issus de la traction lectrique courant continu IEC62128-2:2013 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 IEC, Geneva, Switzerland All rights reserved. Unless

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16、re.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 62128-2 Edition 2.0 2013-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Railway applications Fixed installations Electrical safety, earthing and the return cir

17、cuit Part 2: Provisions against the effects of stray currents caused by d.c. traction systems Applications ferroviaires Installations fixes Scurit lectrique, mise la terre et circuit de retour Partie 2: Mesures de protection contre les effets des courants vagabonds issus de la traction lectrique cou

18、rant continu INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE V ICS 45.060 PRICE CODE CODE PRIX ISBN 978-2-8891-2000-0 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make

19、 sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 62128-2 IEC:2013 CONTENTS FOREWORD . 4 1 Scope . 6 2 Normative references . 7 3 Terms and definitions . 7 4 Identification of ha

20、zards and risks 7 5 Criteria for stray current assessment and acceptance . 8 5.1 General . 8 5.2 Criteria for the protection of the tracks 8 5.3 Criteria for systems with metal reinforced concrete or metallic structures 9 5.4 Specific investigations and measures 10 6 Design provisions . 10 6.1 Gener

21、al . 10 6.2 Return circuit . 10 6.2.1 General . 10 6.2.2 Resistance of running rails 11 6.2.3 Track system . 11 6.2.4 Return conductors . 11 6.2.5 Return cables 11 6.2.6 Electrical separation between the return circuit and system parts with earth-electrode effect 12 6.2.7 Rail-to-rail and track-to-t

22、rack cross-bonds . 12 6.3 Non-traction related electrical equipment . 12 6.4 Tracks of other traction systems 12 6.5 Return busbar in the substation . 12 6.6 Level crossings . 13 6.7 Common power supply for tram and trolleybus 13 6.8 Changeover from the mainline to depot and workshop areas . 13 7 Pr

23、ovisions for influenced metallic structures . 13 7.1 General . 13 7.2 Tunnels, bridges, viaducts and reinforced concrete slab track . 13 7.2.1 Basic proceeding . 13 7.2.2 Longitudinal interconnection 13 7.2.3 Sectionalized reinforcement. 14 7.2.4 External conductive parts 14 7.2.5 Cables, pipework a

24、nd power supply from outside. 14 7.3 Adjacent pipes or cables . 15 7.4 Voltage limiting devices . 15 8 Protective provisions applied to metallic structures . 15 9 Depots and workshops . 15 10 Tests and measurements . 16 10.1 Principles 16 10.2 Supervision of the rail insulation 16 10.2.1 Continuous

25、monitoring of the rail potential . 16 10.2.2 Repetitive monitoring . 16 Annex A (informative) Measurement of track characteristics 18 62128-2 IEC:2013 3 Annex B (informative) Stray current assessment Rail insulation assessment using rail potential 26 Annex C (informative) Estimation of stray current

26、 and impact on metal structures 28 Bibliography 31 Figure A.1 Measurement of the rail resistance for a rail of 10 m length 18 Figure A.2 Measuring arrangement for the conductance per length GRSbetween rails and metal reinforced structure . 19 Figure A.3 Determination of the conductance per length GR

27、Efor track sections without civil structures 20 Figure A.4 Measuring arrangement for the local conductance per length 21 Figure A.5 Test of insulating rail joints . 23 Figure A.6 Test of insulating joints in metal reinforced structures . 24 Figure B.1 Continuous monitoring of the rail potential 26 4

28、 62128-2 IEC:2013 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ RAILWAY APPLICATIONS FIXED INSTALLATIONS ELECTRICAL SAFETY, EARTHING AND THE RETURN CIRCUIT Part 2: Provisions against the effects of stray currents caused by d.c. traction systems FOREWORD 1) The International Electrotechnical Commission

29、 (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in add

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38、any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may

39、 be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62128-2 has been prepared by IEC technical committee 9: Electrical equipment and systems for railways. This second edition cancels and replaces the first edit

40、ion issued in 2003. It constitutes a technical revision. The main technical changes with regard to the previous edition are a consequence of the revision of the related European Standard, EN 50122-2. Main changes are the restructuring of all clauses. The text of this standard is based on the followi

41、ng documents: FDIS Report on voting 9/1804/FDIS 9/1833/RVD 62128-2 IEC:2013 5 Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A lis

42、t of all parts in the IEC 62128 series, published under the general title Railway applications Fixed installations Electrical safety, earthing and the return circuit, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stab

43、ility date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 62128-2 IEC:2013 RAILWAY APPLICATIONS FIXED INSTALLATIONS ELECTRICAL SAFE

44、TY, EARTHING AND THE RETURN CIRCUIT Part 2: Provisions against the effects of stray currents caused by d.c. traction systems 1 Scope This part of IEC 62128 specifies requirements for protective provisions against the effects of stray currents, which result from the operation of d.c. traction systems

45、. As experience for several decades has not shown evident corrosion effects from a.c. traction systems and actual investigations are not completed, this standard only deals with stray currents flowing from a d.c. traction system. This standard applies to all metallic fixed installations which form p

46、art of the traction system, and also to any other metallic components located in any position in the earth, which can carry stray currents resulting from the operation of the railway system. This standard applies to all new d.c. lines and to all major revisions to existing d.c. lines. The principles

47、 may also be applied to existing electrified transportation systems where it is necessary to consider the effects of stray currents. It provides design requirements to allow maintenance. The range of application includes: a) railways, b) guided mass transport systems such as: 1) tramways, 2) elevate

48、d and underground railways, 3) mountain railways, 4) trolleybus systems, and 5) magnetically levitated systems, which use a contact line system, c) material transportation systems. This standard does not apply to: d) mine traction systems in underground mines, e) cranes, transportable platforms and

49、similar transportation equipment on rails, temporary structures (e.g. exhibition structures) in so far as these are not supplied directly from the contact line system and are not endangered by the traction power supply system, f) suspended cable cars, g) funicular railways. This standard does not specify working rules for maintenance. 62128-2 IEC:2013 7 2 Normative references The following do