EN 50124-1-2017 en Railway applications - Insulation coordination - Part 1 Basic requirements - Clearances and creepage distances for all electrical and electronic equipment.pdf
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1、BS EN 50124-1:2017Railway applications Insulation coordinationPart 1: Basic requirements Clearances and creepage distances for all electrical and electronic equipmentBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 50124-1:2017 BRITISH STANDARDNational forewordT
2、his British Standard is the UK implementation of EN 50124-1:2017. It supersedes BS EN 50124-1:2001+A2:2005 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee GEL/9, Railway Electrotechnical Applications.A list of organizations represented on this committe
3、e 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 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 86076 8 ICS 29.080.01
4、; 29.280; 45.020 Compliance 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 March 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 50
5、124-1:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50124-1 March 2017 ICS 29.080.01; 29.280 Supersedes EN 50124-1:2001English Version Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances and creepage distances for all electrical and electronic equipmen
6、t Applications ferroviaires - Coordination de lisolement - Partie 1: Prescriptions fondamentales - Distances disolement dans lair et lignes de fuite pour tout matriel lectrique et lectronique Bahnanwendungen - Isolationskoordination - Teil 1: Grundlegende Anforderungen - Luft- und Kriechstrecken fr
7、alle elektrischen und elektronischen Betriebsmittel This European Standard was approved by CENELEC on 2017-02-06. 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 without a
8、ny alteration.Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other la
9、nguage made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, t
10、he Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
11、 the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CENELEC All rights of exploitation in any form and by an
12、y means reserved worldwide for CENELEC Members. Ref. No. EN 50124-1:2017 EBS EN 50124-1:2017EN 50124-1:2017 (E) 2 Contents Page European foreword . 5 Introduction . 6 1 Scope . 7 2 Normative references 7 3 Terms and definitions . 8 4 Basis for insulation coordination . 11 4.1 Basic principles . 11 4
13、.1.1 General . 11 4.1.2 Insulation coordination with regard to voltage 11 4.1.3 Insulation coordination with regard to environmental conditions 12 4.2 Voltages and voltage ratings 13 4.2.1 General . 13 4.2.2 Rated insulation voltage UNm13 4.2.3 Rated impulse voltage UNi. 13 4.3 Time under voltage st
14、ress. 14 4.4 Pollution . 14 4.5 Insulating material . 15 4.5.1 General . 15 4.5.2 Comparative tracking index (CTI) . 15 5 Requirements and dimensioning rules for clearances 16 5.1 General . 16 5.2 Minimum clearances 16 5.2.1 Functional insulation. 16 5.2.2 Basic and supplementary insulation 16 5.2.3
15、 Reinforced insulation 16 5.3 Contingency . 16 5.4 Clearances for altitudes higher than 2 000 m 17 6 Dimensioning rules for creepage distances . 17 6.1 General . 17 6.2 Minimum creepage distances . 17 6.2.1 Functional, basic and supplementary insulations . 17 6.2.2 Reinforced insulation 17 7 Tests a
16、nd measurements 18 7.1 General . 18 7.2 Measurement of creepage distances and clearances 18 7.2.1 Method and values 18 7.2.2 Acceptance criteria . 18 7.3 Verification of clearances by impulse test . 18 7.3.1 Method and values 18 7.3.2 Test acceptance criteria 19 7.4 Verification of clearances by pow
17、er-frequency test 19 7.4.1 Method and values 19 7.4.2 Test acceptance criteria 19 7.5 Verification of clearances by d.c. voltage test . 19 7.5.1 Method and values 19 BS EN 50124-1:2017EN 50124-1:2017 (E) 3 7.5.2 Test acceptance criteria 19 8 Specific requirements for applications in the railway fiel
18、d . 20 8.1 General . 20 8.2 Specific requirements for signalling 20 8.2.1 Overvoltage categories . 20 8.2.2 Rated impulse voltages . 21 8.2.3 Induced voltages . 21 8.2.4 Installation instructions 21 8.2.5 Pollution degrees 21 8.3 Specific requirements for rolling stock 21 8.3.1 Determination of the
19、rated impulse voltage UNiby method 1 21 8.3.2 Creepage distances . 22 8.3.3 Roof installations 22 8.4 Specific requirements for fixed installations . 22 8.4.1 Determination of the rated impulse voltage UNiby method 1 22 8.4.2 Distances of outdoor insulators . 23 Annex A (normative) Tables 24 Annex B
20、 (normative) Provisions for type and routine dielectric tests for equipment . 31 B.1 General . 31 B.2 Tests 31 Annex C (normative) Methods of measuring creepage distances and clearances . 33 Annex D (normative) Correlation between Unand UNm. 40 Annex E (informative) Macro-environmental conditions 41
21、 Annex F (informative) Application guide 42 F.1 Introduction . 42 F.2 Determination of minimum clearances and creepage distances . 42 F.3 Examples . 48 F.4 Tests 50 Annex ZZ (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC . 52 Bibli
22、ography 53 Tables Table A.1 Rated impulse voltage UNifor low voltage circuits not powered directly by the contact line . 24 Table A.2 Rated impulse voltages (UNi) for circuits powered by the contact line and for traction power circuits in thermo-electric driven vehicles 25 Table A.3 Minimum clearanc
23、es in air for the standard altitude ranges based on the rated impulse voltage UNi. 26 Table A.4 Definition of pollution degrees 27 Table A.5 Minimum creepage distances based on rated insulation voltage UNmup to 1 000 V for printed wiring material and associated components 27 Table A.6 Minimum creepa
24、ge distances for low values of rated insulation voltage UNmfor materials other than printed wiring material . 28 BS EN 50124-1:2017EN 50124-1:2017 (E) 4 Table A.7 Minimum creepage distances (in mm/kV) for high values of rated insulation voltage UNm28 Table A.8 Test voltages for verifying clearances
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