1、BRITISH STANDARDBS EN 50264-1:2008Railway applications Railway rolling stock power and control cables having special fire performance Part 1: General requirementsICS 13.220.20; 29.060.20; 45.060.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59
2、g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 50264-1:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 August 2008 BSI 2008ISBN 978 0 580 55567 1National forewordThis British Stan
3、dard is the UK implementation of EN 50264-1:2008. It supersedes BS EN 50264-1:2002 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee GEL/20, Electric cables, to Subcommittee GEL/20/12, Railway cables.A list of organizations represented on this committee
4、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.Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since
5、publicationDate CommentsEUROPEAN STANDARD EN 50264-1 NORME EUROPENNE EUROPISCHE NORM June 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B -
6、 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50264-1:2008 E ICS 13.220.20; 29.060.20; 45.060.01 Supersedes EN 50264-1:2002English version Railway applications - Railway rolling stock power and control cables
7、 having special fire performance - Part 1: General requirements Applications ferroviaires - Cbles de puissance et de contrle comportement au feu spcifi pour matriel roulant ferroviaire - Partie 1: Prescriptions gnrales Bahnanwendungen - Starkstrom- und Steuerleitungen fr Schienenfahrzeuge mit verbes
8、sertem Verhalten im Brandfall - Teil 1: Allgemeine Anforderungen This European Standard was approved by CENELEC on 2008-03-01. 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 stand
9、ard 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 versions (English, French, German). A version in any othe
10、r 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 Austria, Belgium, Bulgaria, Cyprus, the Czech Republ
11、ic, 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. EN 50264-1:2008 2 Foreword This European Standard
12、 was prepared by Working Group 12, Railway cables, of the Technical Committee CENELEC TC 20, Electric cables, as part of the overall programme of work in the Technical Committee CENELEC TC 9X, Electrical and electronic applications for railways. The text of the draft was submitted to the formal vote
13、 and was approved by CENELEC as EN 50264-1 on 2008-03-01. This European Standard supersedes EN 50264-1:2002. 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) 2009-03-01 latest
14、date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-03-01 _ BS EN 50264-1:2008 3 EN 50264-1:2008 Contents Introduction . 4 1 Scope . 5 2 Normative references 5 3 Definitions 6 4 Rated voltage 7 5 Marking 8 5.1 Indication of origin . 8 5.2 Code designation 8 5
15、.3 Continuity of marks 8 5.4 Durability . 9 5.5 Legibility 9 5.6 Use of the name CENELEC 9 6 General requirements for the construction of cables 9 6.1 Conductors 9 6.2 Insulation system. 10 6.3 Fillers, tapes and inner coverings . 11 6.4 Metallic screen 11 6.5 Sheath . 12 6.6 Overall diameter 13 7 E
16、lectrical performance . 13 8 Reaction to fire Cables . 13 8.1 Flame propagation (flame spread) Single vertical cable 13 8.2 Flame propagation (flame spread) Bunched cables 13 8.3 Smoke emission 13 9 Reaction to fire Components 14 9.1 Assessment of halogens . 14 9.2 Toxicity 14 Annex A (normative) Re
17、quirements for halogens . 25 Annex B (normative) Determination of halogens Elemental test 27 Annex C (normative) Preparation of test pieces for physical tests 29 Annex D (normative) Thickness and overall diameter Selection of samples and calculation of results 30 Annex E (informative) Guidance on se
18、lection of cables for type approval 32 Bibliography 33 Figures Figure 1 Example of marking . 9 Tables Table 1 Rated voltages 8 Table 2a Requirements for the tests for halogen free insulating compounds for Part 2-1 and Part 2-2 . 15 Table 2b Requirements for the tests for halogen free insulating comp
19、ounds for Part 3-1 and Part 3-2 . 18 Table 3 Requirements for the tests for fillers, tapes and binders 21 Table 4 Requirements for the tests for halogen free sheathing compounds. 22 Table A.1 Type test 25 Table A.2 Sample test . 25 BS EN 50264-1:2008EN 50264-1:2008 4 Introduction The railway industr
20、y is generally concerned with the movement of people as well as goods. It is therefore essential that a high level of safety is achieved, even when failures occur which may involve fire, howsoever caused, affecting railway rolling stock. Hence it is necessary to provide cables for use in railway env
21、ironments which minimise the hazard to people when a fire may damage the cable, irrespective of whether the fire is caused by an external source or from within the electrical system. The EN 50264 series specifies cables for power, control and associated circuits which, in the event of fire, will lim
22、it the risk to people and improve the safety on railways in general. It covers sheathed and unsheathed cables with insulation and sheath based on halogen free materials, for use in railway rolling stock. In the event of a fire affecting cables to EN 50264 they will have a limited flame spread and li
23、mited emission of toxic gases. In addition these cables when burnt, produce limited amounts of smoke. This last characteristic will minimise loss of visibility in the event of a fire and will aid reduced evacuation times. The objects of this standard are to standardise cables that are safe and relia
24、ble when properly used, to state the characteristics, performance, and construction requirements directly or indirectly bearing on safety, to specify methods for checking conformity with these requirements. EN 50264, which covers a range of cables rated at up to 3,6/6 kV with conductor sizes 1,0 mm
25、up to 400 mm, is divided into 5 parts under the generic title “Railway applications - Railway rolling stock power and control cables having special fire performance”. Part 1 General requirements; Part 2-1 Cables with crosslinked elastomeric insulation Single core cables; Part 2-2 Cables with crossli
26、nked elastomeric insulation Multicore cables; Part 3-1 Cables with crosslinked elastomeric insulation with reduced dimensions Single core cables; Part 3-2 Cables with crosslinked elastomeric insulation with reduced dimensions Multicore cables. These cables are intended for a limited number of applic
27、ations. Further information on these applications is given in the guide to use, i.e. EN 50355. Information regarding selection and installation of cables, including current ratings can be found in EN 50355 and EN 50343. The procedure for selection of cable cross-sectional area, including reduction f
28、actors for ambient temperature and installation type, is described in EN 50343. Special test methods referred to in EN 50264 are given in EN 50305. A separate European Standard, EN 50306 (series), covers cables for similar applications but with thinner wall thickness of both insulation and sheath, l
29、eading to reduced overall cable diameters. These cables are restricted to 300 V rating and a maximum conductor size of 2,5 mm. A separate European Standard, EN 50382 (series), covers high temperature cables. The range of cables covered is rated at up to 3,6/6 kV with conductor sizes 1,5 mm to 400 mm
30、. BS EN 50264-1:2008 5 EN 50264-1:2008 1 Scope EN 50264-1 specifies the general requirements applicable to the cables given in all other parts of EN 50264. It includes the detailed requirements for the insulating and sheathing materials and other components called up in the separate parts. In partic
31、ular EN 50264-1 specifies those requirements relating to fire safety. Based on proven experience and reliability over many years these cables are rated for occasional thermal stresses causing ageing equivalent to continuous operational life at a conductor temperature of 90 C. NOTE This rating is bas
32、ed upon the polymers defined in 3.1 and 3.2. Before these polymers had gained widespread acceptance in the cable industry, ageing performance had been assessed via long-term thermal endurance testing and had been extrapolated to 20 000 h using techniques equivalent to those in EN 60216 (series). Sub
33、sequent experience in service has demonstrated that the predicted performance levels were correct. Where extrapolated data is used to predict lifetime in service it should be confirmed with the cable manufacturer, and should be on the basis of a failure mode appropriate to the type of material or ca
34、ble. The maximum conductor temperature for short circuit conditions is 200 C based on a duration of 5 s. This Part 1 should be read in conjunction with the other parts of EN 50264. 2 Normative references The following referenced documents are indispensable for the application of this document. For d
35、ated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10002-1 Metallic materials Tensile testing Methods of test at ambient temperature EN 50264-2-1 Railway applications Railway rolling stock powe
36、r and control cables having special fire performance Part 2-1: Cables with crosslinked elastomeric insulation Single core cables EN 50264-2-2 Railway applications - Railway rolling stock power and control cables having special fire performance Part 2-2: Cables with crosslinked elastomeric insulation
37、 Multicore cables EN 50264-3-1 Railway applications - Railway rolling stock power and control cables having special fire performance Part 3-1: Cables with crosslinked elastomeric insulation with reduced dimensions Single core cables EN 50264-3-2 Railway applications - Railway rolling stock power and
38、 control cables having special fire performance Part 3-2: Cables with crosslinked elastomeric insulation with reduced dimensions Multicore cables EN 50266-2-4 Common test methods for cables under fire conditions Test for vertical flame spread of vertically-mounted bunched wires or cables Part 2-4: P
39、rocedures Category C EN 50266-2-5 Common test methods for cables under fire conditions Test for vertical flame spread of vertically-mounted bunched wires or cables Part 2-5: Procedures Small cables Category D EN 50267-2-1 Common test methods for cables under fire conditions Tests on gasses evolved d
40、uring combustion of materials from cables Part 2-1: Procedures Determination of the amount of halogen acid gas EN 50267-2-2 Common test methods for cables under fire conditions Tests on gases evolved during combustion of materials from cables Part 2-2: Procedures Determination of degree of acidity o
41、f gases for materials by measuring pH and conductivity BS EN 50264-1:2008EN 50264-1:2008 6 EN 50305:2002 Railway applications Railway rolling stock cables having special fire performance Test methods EN 60228 Conductors of insulated cables (IEC 60228) EN 60332-1-2 Tests on electric and optical fibre
42、 cables under fire conditions Part 1-2: Test for vertical flame propagation for a single insulated wire or cable Procedure for 1 kW pre-mixed flame (IEC 60332-1-2) EN 60684-2 Flexible insulating sleeving Part 2: Methods of test (IEC 60684-2) EN 60811-1-1:1995 Insulating and sheathing materials of el
43、ectric and optical cables Common test methods Part 1-1: General application Measurement of thickness and overall dimensions Tests for determining the mechanical properties (IEC 60811-1-1:1993) EN 60811-1-2:1995 Insulating and sheathing materials of electric cables Common test methods Part 1-2: Gener
44、al application Thermal ageing methods (IEC 60811-1-2:1985 + A1:1989 + corr. May 1986) EN 60811-1-3:1995 Insulating and sheathing materials of electric and optical cables Common test methods Part 1-3: General application Methods for determining the density Water absorption tests Shrinkage test (IEC 6
45、0811-1-3:1993) EN 60811-1-4:1995 Insulating and sheathing materials of electric and optical cables Common test methods Part 1-4: General application Tests at low temperature (IEC 60811-1-4:1985 + A1:1993 + corr. May 1986) EN 60811-2-1:1998 Insulating and sheathing materials of electric and optical c
46、ables Common test methods Part 2-1: Methods specific to elastomeric compounds Ozone resistance, hot set and mineral oil immersion tests (IEC 60811-2-1:1998) EN 61034-2 Measurement of smoke density of cables burning under defined conditions Part 2: Procedure and requirements (IEC 61034-2) 3 Definitio
47、ns For the purposes of all parts of EN 50264, the following terms and definitions apply. The types or combination of insulating and sheathing compounds covered in this EN are listed below. 3.1 cross-linked ethylene propylene rubber (EPR) compound based on ethylene propylene rubber or similar (EPM or
48、 EPDM) which when cross-linked complies with the requirements given in the particular specification 3.2 cross-linked ethylene copolymers compound in which the characteristic constituent is a copolymer of ethylene such as EVA or other, which, when cross-linked, complies with the requirements given in
49、 the particular specification 3.3 type of compound category, designated by one or several characteristics, in which a compound is placed according to its properties, as determined by specific tests NOTE The type designation is not directly related to the composition of the compound. See also 6.2.1 and 6.6.1. BS EN 50264-1:2008 7 EN 50264-1:2008 3.4 halogen-free material combustible mat
