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1、BRITISH STANDARD BS EN 50124-1:2001 Incorporating Amendments Nos. 1 and 2 Railway applications Insulation coordination Part 1: Basic requirements Clearances and creepage distances for all electrical and electronic equipment The European Standard EN 50124-1:2001, with the incorporation of amendments
2、A1:2003 and A2:2005 has the status of a British Standard ICS 29.080.00; 45.020 ? BS EN 50124-1:2001 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 15 May 2001 BSI 6 March 2006 ISBN 0 580 37586 2 National foreword This British Standard is the
3、 official English language version of EN 50124-1:2001, including amendments A1:2003 and A2:2005. The UK participation in its preparation was entrusted to Technical Committee GEL/9, Railway electrotechnical applications, which has the responsibility to: A list of organizations represented on this com
4、mittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the
5、“Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from leg
6、al obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summa
7、ry of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 49 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 1486812 January 2004An
8、nex F updated and new Annex G 15862March 2006Tables A.2, B.1 and D.1 replaced EUROPEAN STANDARD EN 50124-1 NORME EUROPENNE March 2001 EUROPISCHE NORM + A1 + A2 October 2003 June 2005 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europ
9、isches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50124-1:2001 + A1:2003 + A2:2005 E ICS 29.080.00; 45.020 English version R
10、ailway applications Insulation coordination Part 1: Basic requirements Clearances and creepage distances for all electrical and electronic equipment (includes amendments A1:2003 and A2:2005) Applications ferroviaires Coordination de lisolement Partie 1: Prescriptions fondamentales Distances disoleme
11、nt dans lair et lignes de fuite pour tout matriel lectrique et lectronique (inclut les amendements A1:2003 et A2:2005) Bahnanwendungen Isolationskoordination Teil 1: Grundlegende Anforderungen Luft- und Kriechstrecken fr alle elektrischen und elektronischen Betriebmittel (enthlt nderungen A1:2003 un
12、d A2:2005) This European Standard was approved by CENELEC on 1999-10-01; amendment A1 was approved by CENELEC on 2003-10-01 and amendment A2 was approved by CENELEC on 2005-05-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving
13、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 Central Secretariat or to any CENELEC member. This European Standard exists in three official vers
14、ions (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 same status as the official versions. CENELEC members are the national electrotechnical committees of
15、 Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Page 2 EN 50124-1:2001 Fore
16、word This European Standard was prepared by the Technical Committee CENELEC TC 9X, Electrical and electronic applications in railways. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50124-1 on 1999-10-01. The following dates were fixed: latest date by which
17、the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2001-10-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2002-10-01 Annexes designated “normative” are part of the body of the stan
18、dard. Annexes designated “informative” are given for information only. In this standard, annexes A, B, C and D are normative and annexes E and F are informative. Foreword to amendment A1 This amendment to the European Standard EN 50124-1:2001 was prepared by the Technical Committee CENELEC TC 9X, El
19、ectrical and electronic applications for railways. The text of the draft was submitted to the formal vote and was approved by CENELEC as amendment A1 to EN 50124-1:2001 on 2003-10-01. The following dates were fixed: latest date by which the amendment has to be implemented at national level by public
20、ation of an identical national standard or by endorsement (dop) 2004-10-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2006-10-01 Annexes designated “normative“ are part of the body of the standard. Annexes designated “informative“ are given
21、for information only. In this standard, Annexes A, B, C and D are normative and Annexes E, F and G are informative. Foreword to amendment A2 This amendment to the European Standard EN 50124-1:2001 was prepared by the Technical Committee CENELEC TC 9X, Electrical and electronic applications for railw
22、ays. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as amendment A2 to EN 50124-1:2001 on 2005-05-01. Page 3 EN 50124-1:2001 The following dates were fixed: latest date by which the amendment has to be implemented at national level by publication o
23、f an identical national standard or by endorsement (dop) 2006-05-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2008-05-01 Page 4 EN 50124-1:2001 Contents Page Introduction.5 1 General 6 1.1 Scope.6 1.2 Normative references.7 1.3 Definitions
24、7 2 Basis for insulation coordination10 2.1 Basic principles10 2.2 Voltages and voltage ratings11 2.3 Frequency13 2.4 Time under voltage stress13 2.5 Pollution.13 2.6 Insulating material14 3 Requirements and dimensioning rules for clearances 14 3.1 General 14 3.2 Minimum clearances 15 3.3 Contingenc
25、y.15 4 Dimensioning rules for creepage distances.16 4.1 General 16 4.2 Minimum creepage distances.16 5 Tests and measurements.16 5.1 General 16 5.2 Measurement of creepage distances and clearances 17 5.3 Verification of clearances by impulse test 17 5.4 Verification of clearances by power-frequency
26、test 17 5.5 Verification of clearances by d.c. voltage test 18 6 Specific requirements for applications in the railway field .18 6.1 Specific requirements for signalling18 6.2 Specific requirements for rolling stock20 6.3 Specific requirements for fixed installations .20 Annex A (normative) Tables22
27、 Annex B (normative) Provisions for type and routine dielectric tests for equipment 30 Annex C (normative) Methods of measuring creepage distances and clearances.32 Annex D (normative) Correlation between Un and UNm38 Annex E (informative) Macro-environmental conditions 39 Annex F (informative) Bibl
28、iography .40 Annex G (informative) Application guide41 Page 5 EN 50124-1:2001 Introduction Special conditions occurring in railway applications and the fact that the equipment here concerned falls into the scope of both IEC 60071 (prepared by IEC/TC 28) and IEC 60664-1 (prepared by IEC/SC 28A), led
29、to the decision to draw from these documents and from the draft IEC 60077-1 (prepared by IEC/TC 9), a single document of reference for all standards applicable to the whole railway field. EN 50124 consists of two parts: ? EN 50124-1, Part 1: Basic requirements Clearances and creepage distances for a
30、ll electrical and electronic equipment; ? EN 50124-2, Part 2: Overvoltages and related protection. This Part 1 allows, in conjunction with EN 50124-2, to take into account advantages resulting from the presence of overvoltage protection when dimensioning clearances. Page 6 EN 50124-1:2001 1 General
31、1.1 Scope The whole document deals with insulation coordination in railways. It applies to equipment for use in signalling, rolling stock and fixed installations up to 2 000 m above sea level. Insulation coordination is concerned with the selection, dimensioning and correlation of insulation both wi
32、thin and between items of equipment. In dimensioning insulation, electrical stresses and environmental conditions are taken into account. For the same conditions and stresses these dimensions are the same. An objective of insulation coordination is to avoid unnecessary overdimensioning of insulation
33、. This standard specifies: ? requirements for clearances and creepage distances for equipment; ? general requirements for tests pertaining to insulation coordination. The term equipment relates to a section as defined in 1.3.1.3: it may apply to a system, a sub-system, an apparatus, a part of an app
34、aratus, or a physical realization of an equipotential line. This standard does not deal with: ? distances through solid or liquid insulation; ? distances through gases other than air; ? distances through air not at atmospheric pressure; ? equipment used under extreme conditions. Product standards ha
35、ve to align with this generic standard. However, they may require, with justification, different requirements due to safety and/or reliability reasons, e.g. for signalling, and/or particular operating conditions of the equipment itself, e. g. overhead lines which have to comply to EN 50119. This sta
36、ndard also gives provisions for dielectric tests (type tests or routine tests) on equipment (see annex B). NOTE For safety critical systems, specific requirements are needed. These requirements will be resolved in the product specific signalling standard EN 50129 (in preparation). Page 7 EN 50124-1:
37、2001 1.2 Normative references This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate place in the text and the publications are listed thereafter. For dated references, subsequent amendments to o
38、r revisions 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. EN 50119 *), Railway applications Fixed installations Electric traction overhead contact l
39、ines EN 50121 (Series), Railway applications Electromagnetic compatibility (EMC) EN 50163, Railway applications Supply voltages of traction systems EN 60071-1, Insulation coordination Part 1: Definitions, principles and rules (IEC 60071-1) EN 60507, Artificial pollution tests on high voltage insulat
40、ors to be used on a.c. systems (IEC 60507) EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529) EN 60947-1, Low-voltage switchgear and controlgear Part 1: General rules (IEC 60947-1, modified) IEC 60060-1, High voltage test techniques Part 1: General definitions and test requ
41、irements (endorsed as HD 588.1) IEC 60112, Method for determining the comparative and the proof indices of solid insulating materials under moist conditions (endorsed as HD 214) IEC 60587, Test methods for evaluating resistance to tracking and erosion of electrical insulating materials used under se
42、vere ambient conditions (endorsed as HD 380) IEC 60664-1, Insulation coordination for equipment within low voltage systems Part 1: Principles, requirements and tests (endorsed as HD 625.1, modified) IEC 61245, Artificial pollution tests on high voltage insulators on d.c. systems 1.3 Definitions For
43、the purpose of this standard the following definitions apply according to the following priority order: ? the definition given here-under; ? the definition given in IEC 60664-1; ? the definition given in the documents mentioned in 1.2 other than IEC 60664-1. 1.3.1 General 1.3.1.1 clearance shortest
44、distance in air between two conductive parts 1.3.1.2 creepage distance shortest distance along the surface of the insulating material between two conductive parts *) In preparation Page 8 EN 50124-1:2001 1.3.1.3 section part of an electrical circuit having its own voltage ratings for insulation coor
45、dination Sections fall into two categories: 1.3.1.3.1 earthed section section connected to the earth or to the car body through a circuit for which interruption is not expected 1.3.1.3.2 floating section section isolated from earth or from the car body NOTE 1 A section may be under electrical influe
46、nce of adjacent sections. NOTE 2 A particular point of a circuit may be considered as a section. 1.3.2 Voltages 1.3.2.1 nominal voltage (Un) suitable approximate voltage value used to designate or identify a given supply system 1.3.2.2 working voltage highest r.m.s value of the a.c or d.c voltage wh
47、ich can occur between two points across any insulation, each circuit likely to influence the said r.ms. value being supplied at its maximum permanent voltage NOTE Permanent means that the voltage is lasting more than five minutes, as Umax 1 in EN 50163. 1.3.2.3 rated voltage value of voltage assigne
48、d by the manufacturer to a component, device or equipment and to which operation and performance characteristics are referred NOTE Equipment may have more than one rated voltage value or may have a rated voltage range. 1.3.2.4 rated insulation voltage (UNm) r.m.s. withstand voltage value assigned by
49、 the manufacturer to the equipment or a part of it, characterizing the specified permanent (over five minutes) withstand capability of its insulation NOTE 1 UNm is a voltage between a live part of equipment and earth or another live part. For rolling stock, earth refers to the car body. NOTE 2 For circuits, systems and sub-systems in railway applications this definition is preferred to “highest voltage for equipment” which is widely u