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    EN 50122-1-2011 en Railway applications - Fixed installations - Electrical safety earthing and the return circuit - Part 1 Protective provisions against electric shock (Incorporate.pdf

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    EN 50122-1-2011 en Railway applications - Fixed installations - Electrical safety earthing and the return circuit - Part 1 Protective provisions against electric shock (Incorporate.pdf

    1、Railway applications Fixed installations Electrical safety, earthing and the return circuitPart 1: Protective provisions against electric shockBS EN 50122-1:2011+A3:2016Incorporating corrigenda November 2012 and May 2013BSI Standards PublicationBS EN 50122-1:2011+A3:2016 BRITISH STANDARDNational for

    2、ewordThis British Standard is the UK implementation of EN 50122-1:2011+A3:2016, incorporating corrigendum November 2012. It supersedes BS EN 50122-1:2011+A2:2016 which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating chang

    3、es to CENELEC text carry the number of the CENELEC amendment. For example, text altered by CENELEC amendment A1 is indicated by g1g2.The start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by CENELEC corrigendum November 2012 is indicated in t

    4、he text by g67g68.In 7.4.1 NOTE 1, reference is made to the TN and TT systems of earth connection for low-voltage distribution systems. Table 2 shows only TT and TN systems, although other systems are allowed by the NOTE 2. For application in the UK, it should be noted that IT systems are not prohib

    5、ited by this standard.Attention is drawn to the fact that work is currently in hand to replace the United Kingdom special national condition set out in Annex G (5.2.1). Until this national condition is revised, an appropriate risk assessment is considered essential if public area clearances of less

    6、than the minimum set out in Figure 4 (clause 5.2.1) are to be used.The UK participation in its preparation was entrusted by Technical Committee GEL/9, Railway Electrotechnical Applications to Subcommittee GEL/9/3, Railway Electrotechnical Applications Fixed Equipment.A list of organizations represen

    7、ted 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 application. The British Standards Institution 2016. Published by BSI Standards Limited 2016ISBN 978 0 5

    8、80 96466 4ICS 29.120.50; 29.280Compliance 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 31 May 2011.Amendments/corrigenda issued since publicationDate Text affected31 Jul

    9、y 2011 Implementation of CENELEC amendment A1:201131 November 2012 Implementation of CENELEC corrigendum November 201231 May 2013 Additional information included in the national foreword31 January 2016 Implementation of CENELEC amendment A2:201630 November 2016 Implementation of CENELEC amendment A3

    10、:2016: Annex ZZ updatedEUROPEAN STANDARD EN 50122-1:2011+A1 NORME EUROPENNE EUROPISCHE NORM June 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17,

    11、B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50122-1:2011 E ICS 29.280 Supersedes EN 50122-1:1997English version Railway applications - Fixed installations - Electrical safety, earthing and the return cir

    12、cuit - Part 1: Protective provisions against electric shock Applications ferroviaires - Installations fixes - Scurit lectrique, mise la terre et circuit de retour - Partie 1: Mesures de protection contre les chocs lectriques Bahnanwendungen - Ortsfeste Anlagen - Elektrische Sicherheit, Erdung und Rc

    13、kleitung - Teil 1: Schutzmanahmen gegen elektrischen Schlag This European Standard was approved by CENELEC on 2010-11-16. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard w

    14、ithout any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other lan

    15、guage made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Re

    16、public, 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. Incorporating corrigendum November 2012EN 501

    17、22-1:2011+A2January 2016EN 50122-1:2011+A3November 2016Foreword This European Standard 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 applicatio

    18、ns for railways. It was submitted to the formal vote and was approved by CENELEC as EN 50122-1 on 2010-11-16. This document supersedes EN 50122-1:1997. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be h

    19、eld responsible for identifying any or all such patent rights. The following dates were fixed: g177 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2011-11-16 g177 latest date by which the national standards

    20、 conflicting with the EN have to be withdrawn (dow) 2013-11-16 This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and covers essential requirements of EC Directives 96/48/EC (HSR), 2001/16/EC (CONRAIL) and 2008

    21、/57/EC (RAIL). See Annex ZZ. _ Foreword to amendment A1 This amendment to the European Standard EN 50122-1:2011 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

    22、and electronic applications for railways. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as Amendment A1 to EN 50122-1:2011 on 2011-04-25. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

    23、 rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: g177 latest date by which the amendment has to be implementedat national level by publication of an identical national standard or by endorsement (dop) 2012-04-25 g17

    24、7 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2014-04-25 _ BS EN 50122-1:2011+A1:2011EN 50122-1:2011+A1:2011 (E) 2 BS EN 50122-1:2011+A2:2016EN 50122-1:2011+A2:2016 (E) 2 1+A3:20161+A3:2016 (E)BS EN 50122-1:2011+A2:2016EN 50122-1:2011+A2:2016

    25、 (E) 3 This document (EN 50122-1:2011/A2:2016) has been prepared by CLC/SC 9XC “Electric supply and earthing systems for public transport equipment and ancillary apparatus (Fixed installations)“, of CLC/TC 9X, “Electrical and electronic applications for railways“. The following dates are fixed: g120

    26、 latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2016-11-23 g120 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2018-11-23 Attention is drawn to

    27、the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CENELEC by the European Commission and the European

    28、 Free Trade Association, and supports essential requirements of EU Directive(s). For the relationship with EU Directive(s) see informative Annex ZZ, included in EN 50122-1:2011. Foreword to amendment A2This document (EN 50122-1:2011/A3:2016) has been prepared by CLC/SC 9XC “Electric supply and earth

    29、ing systems for public transport equipment and ancillary apparatus (Fixed installations)“. The following dates are fixed: g120 latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2016-12-03 g120 latest da

    30、te by which the national standards conflicting with this document have to be withdrawn (dow) 2016-12-03 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all su

    31、ch patent rights. This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part

    32、 of this document. 1+A3:20161+A3:2016 (E)Foreword to amendment A3Annex ZZ (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the E

    33、uropean Free Trade Association and within its scope the standard covers all relevant essential requirements as given in Annex lll of the EC Directive 2008/57/EC (also named as New Approach Directive 2008/57/EC Rail Systems: Interoperability). Once this standard is cited in the Official Journal of th

    34、e European Union under that Directive and has been implemented as a national standard in at least one Member State, compliance with the clauses of this standard given in Table ZZ.1 for “Energy” confers, within the limits of the scope of this standard, a presumption of conformity with the correspondi

    35、ng Essential Requirements of that Directive and associated EFTA regulations. Table ZZ.1 - Correspondence between this European Standard, the TSI “Energy” (REGULATION (EU) No 1301/2014 of 18 November 2014) and Directive 2008/57/EC Clauses of this European Standard Chapter / / points / of ENE TSI Esse

    36、ntial Requirements (ER) of Directive 2008/57/EC Comments The whole standard is applicable. Clauses directly referenced in the TSI: 5.2.4 5.2.5 5.2.1 5.3.1 5.3.2 6.1.6.2 9.2.2.1 9.2.2.2 9.3.2.1 9.3.2.2 4.2.7. Electrical protection coordination arrangements 4.2.9. Geometry of the overhead contact line

    37、 4.2.9.1. Contact wire height 4.2.18. Protective provisions against electric shock 1. General Requirements 1.1 Safety 1.5 Technical compatibility 2. Requirements specific to each sub-subsystem 2.2 Energy 2.2.1 Safety 2.2.3. Technical compatibility References to the standard EN 50122-1 should be upda

    38、ted in the TSI WARNING: Other requirements and other EU Directives may be applicable to the products falling within the scope of this standard. BS EN 50122-1:2011+A3:2016EN 50122-1:2011+A3:2016 (E) 4 Contents 1g3 Scope . 7g32g3 Normative references . 7g33g3 Terms and definitions 8g33.1g3 Electrical

    39、safety and hazards . 8g33.2g3 Earthing and equipotential bonding . 10g33.3g3 Return circuit 11g33.4g3 Electric traction system 13g33.5g3 Contact line 14g33.6g3 Corrosion and corrosion protection 16g33.7g3 Current collection . 16g33.8g3 Residual current devices 16g33.9g3 General terms. 17g34g3 Contac

    40、t line zone and current collector zone . 17g34.1 Overhead contact line systems 17 4.2 Conductor rail systems . 20 4.3 Trolleybus systems 20 5g3 Protective provisions against direct contact 22g35.1 General . 22 5.2 Protection by clearance 22 5.3 Protection by obstacles 25 5.4 Protective provisions fo

    41、r working under live conditions . 33 5.5 Specific protective provisions against electric shock in conductor rail systems 36 5.6 Specific protective provisions against electric shock in systems in which the wheels of the vehicles are not used for return circuit . 40 6g3 Protective provisions against

    42、indirect contact and impermissible rail potential 41g36.1 Protective provisions against indirect contact 41 6.2 Protective provisions for exposed conductive parts within the contact line zone or the current collector zone . 42 6.3 Protective provisions for wholly or partly conductive structures 43 6

    43、.4 Limitation of rail potentials 45 7g3 Protective provisions for low voltage non traction power supplies . 45g37.1 General . 45 7.2 Related provisions 46 7.3 Protective provisions for electrical installations in the overhead contact line zone or the current collector zone . 46 7.4 Protective provis

    44、ions for installations which are endangered by the traction power supply return circuit 46 8g3 Protective provisions where track systems, which are utilized for carrying traction return current, or/and contact line systems pass through hazardous zones 52g38.1 General . 52 8.2 Equipotential bonding .

    45、 53 8.3 Parallel pipework 53 BS EN 50122-1:2011+A1:2011EN 50122-1:2011+A1:2011 (E) 3 BS EN 50122-1:2011+A2:2016EN 50122-1:2011+A2:2016 (E) 4 991010121315161818181919192222242424273538424343444547474748484854545555BS EN 50122-1:2011+A3:2016EN 50122-1:2011+A3:2016 (E) 5 Bibliography 81g3Figures Figure

    46、 1 Overhead contact line zone and current collector zone 19g3Figure 2 Overhead contact line zone and current collector zone for trolley bus systems . 21g3Figure 3 Minimum clearances to accessible live parts on the outside of vehicles as well as to live parts of overhead contact line systems from sta

    47、nding surfaces accessible to persons for low voltages. 23g3Figure 4 Minimum clearances to accessible live parts on the outside of vehicles as well as to live parts of overhead contact line systems from standing surfaces accessible to persons for high voltages. 23g3Figure 5 Standing surfaces for pers

    48、ons providing access to live parts on the outside of vehicles and to overhead contact line systems 25g38321232525278.4 Insulating joints. 53 8.5 Surge arrester 54 8.6 Contact line of loading sidings . 54 9g3 Limits for touch voltage and protection against the danger of rail potential 54g39.1 General

    49、 . 54 9.2 A.C. traction systems . 55 9.3 D.C. traction systems . 59 10g3 Additional protective provisions 61g310.1 Traction substations and traction switching stations 61 10.2 Cables 61 10.3 Return circuit connections and earthing conductors 61 10.4 Removing of decommissioned overhead contact lines 62 10.5 Means of achieving safe isolation between sections . 63 Annex A (informative) Typical obstacles . 64g3Annex B (normative) Warning sign 66g3Annex C (informative) Guiding values for rail potential gradient . 67g3C.1 A.C.


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