1、BRITISH STANDARD BS EN 50123-1:2003 Railway applications Fixed installations D.C. switchgear Part 1: General The European Standard EN 50123-1:2003 has the status of a British Standard ICS 29.120.60; 45.020 BS EN 50123-1:2003 This British Standard, was published under the authority of the Standards P
2、olicy and Strategy Committee on 11 July 2003 BSI 11 July 2003 ISBN 0 580 42246 1 National foreword This British Standard is the official English language version of EN 50123-1:2003. It supersedes BS EN 50123-1:1996 which is withdrawn. The UK participation in its preparation was entrusted by Technica
3、l Committee GEL/9, Railway electrotechnical applications, to Subcommittee GEL/9/3, Fixed equipment, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement internatio
4、nal 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 “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport t
5、o 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 legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any
6、 enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 46, an in
7、side back cover 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. Date CommentsEUROPEAN STANDARD EN 50123-1 NORME EUROPENNE EUROPISCHE NORM February 2003 CENELEC European Committee for Electro
8、technical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No
9、. EN 50123-1:2003 E ICS 29.120.60; 45.020 Supersedes EN 50123-1:1995English version Railway applications Fixed installations D.C. switchgear Part 1: General Applications ferroviaires Installations fixes Appareillage courant continu Partie 1: Gnralits Bahnanwendungen Ortsfeste Anlagen Gleichstrom-Sch
10、alteinrichtungen Teil 1: Allgemeines This European Standard was approved by CENELEC on 2002-09-01. 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 any alteration.
11、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 language made by translati
12、on 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Hun
13、gary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EN 50123-1:2003 2 Foreword This European Standard was prepared by SC 9XC, Electric supply and earthing systems for public transport equipment and ancillary appara
14、tus (fixed installations), of the Technical Committee CENELEC TC 9X, Electrical and electronic applications for railways. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50123-1 on 2002-09-01. This European Standard supersedes EN 50123-1:1995. It has been pre
15、pared taking into account IEC document 9/578/FDIS (61992-1) in order to align technically as much as possible this EN 50123-1 and IEC 61992-1. These documents are to be considered as technically equivalent except for those references and peculiarities which are due to the European standardisation in
16、 the railway application field. The following dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2003-09-01 - latest date by which the national standards conflicting with the EN have to be w
17、ithdrawn (dow) 2005-09-01 Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only. In this standard, Annexes A, B and C are normative and Annexes D and E are informative. _ 3 EN 50123-1:2003 Contents 1 Scope.4 2 Normative r
18、eferences4 3 Definitions .6 3.1 General terms.6 3.2 Performance characteristics9 3.3 Components .13 3.4 Terms relating to d.c. circuit breakers, switch-disconnectors and associated relays .17 4 Service conditions and requirements.22 4.1 Environmental conditions 22 4.2 Insulation levels22 5 Standard
19、features and conventional assumptions.24 5.1 Standard features and conventional parameters for the main circuit 24 5.2 Standard features for auxiliary and control circuits.26 6 Temperature-rise limits.26 7 Tests27 7.1 General 27 7.2 Test tolerances.28 7.3 Tests on movable devices.28 7.4 Temperature-
20、rise test .30 7.5 Dielectric tests32 7.6 Short circuit and load switching conditions 32 7.7 Verification of the behaviour during short-time withstand current test.34 7.8 Verification of the manual control device for sturdiness and position indicator reliability.34 Annex A (normative) Diagrams for te
21、sts36 Annex B (normative) Environmental conditions for indoor installations 38 Annex C (normative) Search of critical currents for d.c. circuit breakers and switches.40 Annex D (informative) Recommended creepage distances42 Annex E (informative) Determination of maximum energy fault location .43 Bib
22、liography46 Figure A.1 - Diagram of the test circuit for checking the making and breaking capacities in short-circuit and load/overload switching conditions 37 Figure A.2 - Typical calibrations and interruption under short-circuit and load/overload switching conditions.38 Figure E.1 - Equivalent cir
23、cuit of a d.c. traction system 46 Figure E.2 - Ratio of I maxE /I ssto T s /T c .46 Table 1 - Insulation levels24 Table 2 - Test circuit parameters for maximum circuit energy 25 Table 3 - Preferred voltages for auxiliary and control circuits V 27 Table 4 - Temperature-rise limits for insulated coils
24、.27 Table 5 - Temperature-rise limits for various components28 Table 6 - Test tolerances.29 Table 7 - Recommended quantities and dimensions of copper bars .32 Table 8 - Values of forces or torques for the tests36 Table B.1 - Limits of sinusoidal vibrations40 Table D.1 - Material group identification
25、 43 Table D.2 - Recommended creepage distances, in mm/kV (base U Nm ).43 EN 50123-1:2003 4 1 Scope The EN 50123 series specifies requirements for d.c. switchgear and controlgear and is intended to be used in fixed electrical installations with nominal voltage not exceeding 3 000 V d.c., which supply
26、 electrical power to vehicles for public guided transport, i.e. railway vehicles, tramway vehicles, underground vehicles and trolley-buses. Part 1 specifies general requirements. The other parts are covering Part 2 D.C. circuit breakers, Part 3 Indoor d.c. disconnectors, switch-disconnectors and ear
27、thing switches, Part 4 Outdoor d.c. disconnectors, switch-disconnectors and earthing switches, Part 5 Surge arresters and low voltage limiters for specific use in d.c. systems, Part 6 D.C. switchgear assemblies, Part 7-1 Measurement, control and protection devices for specific use in d.c. traction s
28、ystems Application guide, Part 7-2 Measurement, control and protection devices for specific use in d.c. traction systems Isolating current transducers and other current measuring devices, Part 7-3 Measurement, control and protection devices for specific use in d.c. traction systems Isolating voltage
29、 transducers and other voltage measuring devices 2 Normative references This European Standard series incorporates by dated or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter.
30、 For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard series only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 50119 20
31、01 Railway applications Fixed installations Electric traction overhead contact lines EN 50121 Series Railway applications Electromagnetic compatibility EN 50122-1 1997 Railway applications Fixed installations Part 1: Protective provisions relating to electrical safety and earthing EN 50124-1 2001 Ra
32、ilway applications Insulation coordination Part 1: Basic requirements Clearances and creepage distances for electrical and electronic equipment EN 50125-2 2002 Railway applications Environmental conditions for equipment Part 2: Fixed electrical installations EN 50126 1999 Railway applications The sp
33、ecification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS) EN 50163 1995 Railway applications Supply voltage of traction systems (IEC 60850:2000) EN 60099-1 1994 Surge arresters Part 1: Non-linear resistor type gapped surge arresters for a.c. systems (IEC 60099-1:1
34、991) 5 EN 50123-1:2003 EN 60099-4 1993 Surge arresters Part 4: Metal-oxide surge arresters without gaps for a.c. systems (IEC 60099-4:1991) EN 60129 1994 Alternating current disconnectors and earthing switches + A1 1994 (IEC 60129:1984 + A1:1992 + A2:1996) + A2 1996 EN 60243-1 1998 Electrical streng
35、th of insulating materials Test methods Part 1: Tests at power frequencies (IEC 60243-1:1998) EN 60269 series Low-voltage fuses (IEC 60269 series) EN 60298 1996 AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV (IEC 60298:1990 + corr. April 1995
36、 + A1:1994) EN 60507 1993 Artificial pollution tests on high-voltage insulators to be used on a.c. systems (IEC 60507:1991) EN 60529 1991 Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989) EN 60694 1996 Common specifcations for high-voltage switchgear and controlgear standards (
37、IEC 60694:1996) EN 60721 series Classification of environmental conditions (IEC 60721 series) EN 60947-1 1999 Low-voltage switchgear and controlgear Part 1: General rules (IEC 60947-1:1999, mod.) EN 60947-2 1996 Low-voltage switchgear and controlgear Part 2: Circuit breakers + A1 1997 (IEC 60947-2:1
38、995 + A1:1997) HD 214 S2 1980 Method for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions (IEC 60112:1979) HD 380 S2 1987 Test methods for evaluating resistance to tracking and erosion of electrical insulating materials used under severe
39、 ambient conditions (IEC 60587:1984) HD 588.1 S1 1991 High-voltage test techniques Part 1: General definitions and test requirements (IEC 60060-1:1989 + corr. March 1990) IEC 60050-441 1984 International Electrotechnical Vocabulary (IEV) Chapter 441: Switchgear, controlgear and fuses IEC 60050-446 1
40、983 International Electrotechnical Vocabulary (IEV) Chapter 446: Electrical relays IEC 60050-605 1983 International Electrotechnical Vocabulary (IEV) Chapter 605: Generation, transmission and distribution of electricity Substations IEC 60050-811 1991 International Electrotechnical Vocabulary (IEV) C
41、hapter 811: Electric traction IEC 60466 1987 A.C. insulation-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 38 kV IEC 61245 1993 Artificial pollution tests on high voltage insulators to be used in d.c. systems EN 50123-1:2003 6 3 Definitions For the purpose
42、 of this European Standard series, the definitions given in IEC 60050-441, IEC 60050-446, IEC 60050-605, IEC 60050-811, EN 50124-1, EN 60099-1, EN 60099-4, EN 60298 and EN 60947 apply together with the following: 3.1 General terms 3.1.1 switchgear general term covering switching devices and their co
43、mbination with associated control, measuring, protective and regulating equipment; it covers also assemblies of such devices and equipment with associated interconnections, accessories, enclosures and supporting structures NOTE For the sake of simplicity in this standard the term “switchgear” means
44、“switchgear and controlgear”. 3.1.1.1 d.c. switchgear and controlgear assembly combination of one or more d.c. switching devices together with associated control, measuring, signalling, protective, regulating equipment, etc., completely assembled under the responsibility of the supplier, with all th
45、e internal electrical and mechanical interconnections and structural parts NOTE 1 Throughout the Standard, the abbreviation switchgear assembly is used for a d.c. switchgear and controlgear assembly. NOTE 2 The components of the switchgear assembly may be electromechanical or electronic. NOTE 3 An e
46、nclosure, but not an integral enclosure, when housing a switching device and some associated controlgear, may be considered as a switchgear assembly. 3.1.2 switching device device designed to make or break the current in one or more electric circuits IEV 441-14-01 3.1.3 d.c. circuit breaker switchin
47、g device capable of making, carrying and breaking direct currents under normal circuit conditions and also making, carrying (up to a specified limit and for a specified time) and breaking currents under specified abnormal conditions, such as those of short-circuit 3.1.4 d.c. disconnector mechanical
48、switching device, which provides, in the open position, for safety reasons, an isolating distance in accordance with specified requirements NOTE 1 The disconnector is capable of opening and closing a circuit when either negligible d.c. current is broken or made, or when no significant change in the
49、voltage across the terminals of the disconnector occurs. It is also capable of carrying d.c. currents under normal circuit conditions and carrying, for a specified time, currents under abnormal conditions such as those of short-circuit. NOTE 2 A disconnector is not suitable for making or breaking load current, fault current or other current arising from the effects of lightning or transient p
