1、Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 09 October 2003, Uncontrolled Copy, (c) BSIBRITISH STANDARD BS EN 50123-6:2003 Railway applications Fixed installations D.C. switchgear Part 6: D.C. switchgear assemblies The European Standard EN 50123-6:2003 has the status of
2、 a British Standard ICS 29.120.60; 45.020 Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 09 October 2003, Uncontrolled Copy, (c) BSIBS EN 50123-6:2003 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 11 July 2003 BS
3、I 11 July 2003 ISBN 0 580 42251 8 National foreword This British Standard is the official English language version of EN 50123-6:2003. It supersedes BS EN 50123-6:1999 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee GEL/9, Railway electrotechnical app
4、lications, 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 international or European publications referred to in thi
5、s 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 to include all the necessary provisions of a con
6、tract. 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 enquiries on the interpretation, or proposals
7、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 31 and a back cover. The BSI copyright date displayed in
8、 this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 09 October 2003, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 50123-6 NORME EUROPENNE EUROPISCHE NORM Feb
9、ruary 2003 CENELEC European Committee for Electrotechnical 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 mean
10、s reserved worldwide for CENELEC members. Ref. No. EN 50123-6:2003 E ICS 29.120.60; 45.020 Supersedes EN 50123-6:1998English version Railway applications Fixed installations D.C. switchgear Part 6: D.C. switchgear assemblies Applications ferroviaires Installations fixes Appareillage courant continu
11、Partie 6: Ensembles dappareillage Bahnanwendungen Ortsfeste Anlagen Gleichstrom-Schalteinrichtungen Teil 6: Gleichstrom-Schaltanlagen 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 condit
12、ions for giving 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 thr
13、ee official versions (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 electrotechnic
14、al committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information
15、 Centre, 09 October 2003, Uncontrolled Copy, (c) BSIEN 50123-6:2003 - 2 - Foreword This European Standard was prepared by SC 9XC, Electric supply and earthing systems for public transport equipment and ancillary apparatus (fixed installations), of the Technical Committee CENELEC TC 9X, Electrical an
16、d electronic applications for railways. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50123-6 on 2002-09-01. This European Standard supersedes EN 50123-6:1998. The following dates were fixed: - latest date by which the EN has to be implement
17、ed 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 withdrawn (dow) 2005-09-01 This Part 6 is to be used in conjunction with EN 50123-1:2003. Annexes designated “info
18、rmative” are given for information only. In this standard, annex A is informative. _ Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 09 October 2003, Uncontrolled Copy, (c) BSI - 3 - EN 50123-6:2003 Contents Page 1 Scope 5 2 Normative references. 5 3 Definitions. 5 4 Servic
19、e requirements . 5 5 Characteristics of the assemblies 6 6 Construction characteristics . 6 6.1 General. 6 6.2 Insulation requirements7 6.3 Primary connections.7 6.4 Location of the primary connections 8 6.5 Earthing 8 6.6 Degree of protection and internal fault. 9 6.7 Covers and doors 10 6.8 Inspec
20、tion windows11 6.9 Ventilating openings.11 6.10 Partitions and shutters. 11 6.11 Interlocks 13 6.12 Temperature-rises . 13 6.13 Dielectric strength.14 6.14 Painting and finishing. 14 6.15 Noise emission14 6.16 Cooling and heating 14 6.17 Operating temperature of auxiliary and control equipment 14 7
21、Information and marking 15 7.1 Information.15 7.2 Marking 15 8 Tests. 16 8.1 General. 16 8.2 List of the applicable tests 16 8.3 Performance of tests . 17 Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 09 October 2003, Uncontrolled Copy, (c) BSIEN 50123-6:2003 - 4 - Annex
22、A (informative) Information required . 27 A.1 General. 27 A.2 Procurement specification27 A.3 Manufacturers tender specification . 29 A.4 Information and data to be supplied by the manufacturer during the delivery stage. 30 Figure 1 - Test arrangement for short time current withstand test on busbars
23、 . 26 Figure 2 - Test arrangement for temperature-rise test on main circuits 26 Figure 3 - Test arrangement for temperature-rise test on the busbars 26 Table 1 - Degrees of protection 10 Table 2 - List of applicable tests.17 Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 0
24、9 October 2003, Uncontrolled Copy, (c) BSI - 5 - EN 50123-6:2003 1 Scope This European Standard covers d.c. metal-enclosed and non-metallic enclosed switchgear assemblies used in indoor stationary installations of traction systems, with nominal voltage not exceeding 3 000 V. It is intended that indi
25、vidual items of equipment, for example circuit breakers, housed in the assembly are designed, manufactured and individually tested (simulating the enclosure when necessary) in accordance with their respective parts of EN 50123 or, when appropriate, with another applicable standard. NOTE 1 The requir
26、ements covered in this European Standard are those concerning the assembly as such, its enclosure and the mutual influence of the equipment enclosed. NOTE 2 EMC requirements are covered by EN 50121-5 and additional requirements concerning dependability (RAMS) are covered by EN 50126. 2 Normative ref
27、erences This European Standard 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. For dated references, subsequent amendments to or revisions of any of
28、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 (including amendments). See EN 50123-1:2003. 3 Definitions For the purposes of this European Standard, the terms
29、and definitions given in EN 50123-1 apply. 4 Service requirements Normal service requirements are detailed in clause 4 and Annex B of EN 50123-1 for indoor installations. In this European standard the pollution degree PD4 and overvoltage categories (see notes to Table 1 of EN 50123-1) as described i
30、n EN 50124-1 are considered to be the normal condition. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 09 October 2003, Uncontrolled Copy, (c) BSIEN 50123-6:2003 - 6 - 5 Characteristics of the assemblies The main characteristics of an assembly shall be indicated in the pro
31、curement specification as follows: a) type of the assembly enclosure; b) list of functional units enclosed; c) rated insulation voltages; d) rated values of the equipment enclosed as required in relevant standards; e) if constructed for an earth fault protection; f) detailed protection and control r
32、equirements (see EN 50123-7). Other important characteristics are listed in A.2. 6 Construction characteristics 6.1 General Enclosures are either metallic or non-metallic. Non-metallic enclosed switchgear shall not be used for nominal voltages above 1,5 kV. All requirements specified herein also app
33、ly when both conductive and insulating materials are used, except for insulating clearances which shall be designed and tested as appropriate. A cell made of masonry shall not be considered as an enclosure, as far as this standard is concerned. The floor surface may be considered as part of an enclo
34、sure. The measures to be taken in order to obtain the degree of protection provided by floor surfaces shall be subject to an agreement between purchaser and supplier. The walls of a room shall not be considered as parts of the enclosure. Switchgear assemblies and relevant enclosures shall be designe
35、d so that normal service, inspection and maintenance operations, earthing of connected cables or busbars, locating of cable faults, voltage tests on connected cables or other apparatus and the elimination of electrostatic charges, can be carried out easily and safely. All materials used shall be of
36、the quality and of the class most suitable for working under the conditions specified. Special attention is to be paid to its ability to withstand moisture and fire: unless Fire behaviour Class F0 is allowed (see Annex B of EN 50123-1), materials used shall be metallic or of the self extinguishing t
37、ype, such that the risk of propagation of fire from one cubicle or compartment to another is minimised. The selection of materials and the construction of the assembly shall be such that corrosion due to atmospheric and electrolytic effects are minimised. Licensed Copy: Wang Bin, ISO/Exchange China
38、Standards Information Centre, 09 October 2003, Uncontrolled Copy, (c) BSI - 7 - EN 50123-6:2003 European rules concerning noxious or toxic materials shall be observed. All identical devices, forming part of an assembly for a given use and with the same characteristics, shall be interchangeable. With
39、drawable switching devices shall be prevented from insertion into functional units on the same switchgear assembly, having a different function or higher current ratings. Sufficient space shall be provided inside the compartments for the entry and termination of incoming cables without their minimum
40、 bending radii being infringed. The detachable parts of the protection enclosures shall be firmly attached to the fixed parts as specified in 6.7. Accidental untightening or detachment shall not occur because of the operation of the equipment. All apparatus and connections for the safe operation, co
41、ntrol and protection of the equipment concerned, shall be provided whether or not specifically mentioned. The equipment shall be adequately earthed, insulated, screened or enclosed as may be appropriate to ensure the protection of the equipment and safety of those concerned in its operation and main
42、tenance. Control and auxiliary circuits and contacts shall comply with the requirements of 5.2 of EN 50123-1. All components contained within the enclosure shall comply with their relevant standards. 6.2 Insulation requirements Test voltages and clearances are given in Table 1 of EN 50123-1. Recomme
43、nded values for creepage distances are given in Annex D of EN 50123-1. The adverse effect of ionisation (due to arcs) on the clearances of other equipment in the assembly shall be taken into account. The minimum clearances between the arc chute of a switching device and metallic or non-metallic part
44、s (i.e. above the arc chute and to the sides) shall be in accordance with those given by the switching device manufacturer. Insulating material used to fully or partially line a metallic enclosure shall be firmly secured to the enclosure. In case of withdrawable units, where access within the enclos
45、ure is required during maintenance operations, the busbars and all other conductors shall be separated by a barrier. Openings through such a barrier for the circuit and busbar connectors, etc., shall be shuttered and capable of being locked closed. 6.3 Primary connections Non withdrawable functional
46、 units may be equipped with fixed, removable (bolted or clamped) connectors. Withdrawable functional units may be equipped with plug-in connectors. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 09 October 2003, Uncontrolled Copy, (c) BSIEN 50123-6:2003 - 8 - 6.4 Location
47、of the primary connections In case of non-withdrawable assemblies, the terminals for the primary connections shall be accessible with the functional units as in normal operating conditions. 6.5 Earthing NOTE Depending on the d.c. system earthing requirements, “earthing“ means connection either to ea
48、rth or to the return circuit. 6.5.1 Earthing of the main circuit To ensure safety during maintenance work, all parts of the main circuit to which access is required or provided shall be capable of being earthed through suitable means. This does not apply to those parts, which are withdrawable or rem
49、ovable and which become accessible after being separated from the switchgear. A withdrawable part, however, shall not be removable from the enclosure unless capacitors on it have been discharged to safe values. In case of withdrawable circuit breakers, the earth connection shall be made before the shutters are opened and the shutters shall be closed before the earth connection is disconnected. Earthing switches shall comply with EN 50123-3. The requirement that it shall be pos
