1、BRITISH STANDARDBS EN 50264-2-1:2008Railway applications Railway rolling stock power and control cables having special fire performance Part 2-1: Cables with crosslinked elastomeric insulation Single core cablesICS 13.220.20; 29.060.20; 45.060.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3
2、g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 50264-2-1:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 August 2008 BSI 2008ISBN
3、978 0 580 55568 8National forewordThis British Standard is the UK implementation of EN 50264-2-1:2008. It supersedes BS EN 50264-2:2002 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee GEL/20, Electric cables, to Subcommittee GEL/20/12, Railway cables.A
4、 list of organizations represented on this committee 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 l
5、egal obligations. Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARD EN 50264-2-1 NORME EUROPENNE EUROPISCHE NORM June 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnisc
6、he Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50264-2-1:2008 E ICS 13.220.20; 29.060.20; 45.060.01 Supersedes EN 50264-2:2002English version Railway appl
7、ications - Railway rolling stock power and control cables having special fire performance - Part 2-1: Cables with crosslinked elastomeric insulation - Single core cables Applications ferroviaires - Cbles de puissance et de contrle comportement au feu spcifi pour matriel roulant ferroviaire - Partie
8、2-1: Cbles enveloppe isolante rticule - Cbles monoconducteurs Bahnanwendungen - Starkstrom- und Steuerleitungen fr Schienenfahrzeuge mit verbessertem Verhalten im Brandfall - Teil 2-1: Leitungen mit vernetzter elastomerer Isolierung - Einadrige Leitungen This European Standard was approved by CENELE
9、C 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 standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards
10、 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 translation under the responsibility of a CENELEC member into its own language and notified
11、 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 Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, L
12、uxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 50264-2-1:2008 2 Foreword This European Standard was prepared by Working Group 12, Railway cables, of the Technical Committee CENELEC TC 20, Electric cables
13、, 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 and was approved by CENELEC as EN 50264-2-1 on 2008-03-01. This European Standard supersedes EN 50264-2:200
14、2. 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 date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-03-01 _ BS EN
15、 50264-2-1:2008 3 EN 50264-2-1:2008 Contents Page Introduction . 5 1 Scope 6 2 Normative references 6 3 Definitions 7 4 Rated voltage . 7 5 Marking and identification 7 5.1 Marking of cable 7 5.2 Core identification 8 5.3 Sheath . 8 6 Construction of cables 8 6.1 General 8 6.2 Conductor 8 6.3 Conduc
16、tor screening . 8 6.4 Separator . 8 6.5 Insulation system. 8 6.6 Sheath . 9 6.7 Constructional components . 9 7 Tests . 15 7.1 Definitions relating to tests 15 7.2 Conductor resistance 15 7.3 Voltage test . 15 7.4 Insulation resistance . 15 7.5 Dielectric strength 15 7.6 Spark test 16 7.7 DC stabili
17、ty 16 7.8 Surface resistance. 16 7.9 Ageing test 16 7.10 Hot set test 17 7.11 Compatibility 17 7.12 Water absorption on sheath 17 7.13 Ozone resistance 17 7.14 Mineral oil resistance 18 7.15 Fuel resistance 18 7.16 Acid and alkali resistance 19 7.17 Bending test at low temperature (cables with OD 12
18、,5 mm) . 19 7.18 Cold elongation test (cables with OD 12,5 mm) 19 7.19 Impact test at low temperature 20 7.20 Reaction to fire Cable . 20 7.21 Reaction to fire Components 20 Annex A (normative) Code designation 24 Bibliography 25 BS EN 50264-2-1:2008EN 50264-2-1:2008 4 Tables Table 1 General data Ca
19、ble type (0,6/1 kV unsheathed) . 11 Table 2 General data Cable type (1,8/3 kV unsheathed) . 12 Table 3 General data Cable type (1,8/3 kV sheathed) . 13 Table 4 General data Cable type (3,6/6 kV sheathed) . 14 Table 5 Schedule of tests for cables . 21 BS EN 50264-2-1:2008 5 EN 50264-2-1:2008 Introduc
20、tion The EN 50264 series covers a range of cables, based upon halogen free materials, for use in railway rolling stock. It 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 requireme
21、nts; Part 2-1 Cables with crosslinked elastomeric insulation Single core cables; Part 2-2 Cables with crosslinked 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
22、insulation with reduced dimensions Multicore cables. 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 factors for ambient temperature and install
23、ation type, is described in EN 50343. Special test methods referred to in EN 50264 are given in EN 50305. The cables in EN 50264-2-1 may also be used in EN 50264-2-2 to build up multicore sheathed cables. Part 1, “General requirements”, contains a more extensive introduction to EN 50264, and should
24、be read in conjunction with this Part 2-1. BS EN 50264-2-1:2008EN 50264-2-1:2008 6 1 Scope EN 50264-2-1 specifies requirements for, and constructions and dimensions of, single core cables of the following types and voltage ratings: 0,6/1 kV unscreened, unsheathed (1 mm to 400 mm); 1,8/3 kV unscreene
25、d, unsheathed (1,5 mm to 400 mm); 1,8/3 kV unscreened, sheathed (1,5 mm to 400 mm); 3,6/6 kV unscreened, sheathed (2,5 mm to 400 mm). All cables have class 5 tinned copper conductors to EN 60228, halogen-free insulation and halogen-free sheath. They are for use in railway rolling stock as fixed wiri
26、ng, or wiring where limited flexing in operation is encountered. The requirements provide for a continuous conductor temperature not exceeding 90 C and a maximum temperature for short circuit conditions of 200 C based on a duration of 5 s. Under fire conditions the cables exhibit special performance
27、 characteristics in respect of maximum permissible flame propagation (flame spread) and maximum permissible emission of smoke and toxic gases. EN 50264-2-1 should be read in conjunction with Part 1 “General requirements”. 2 Normative references The following referenced documents are indispensable fo
28、r the application of this document. For dated 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 50264-1:2008 Rai
29、lway applications Railway rolling stock power and control cables having special fire performance Part 1: General requirements 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: Procedures Category C
30、 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 50305:2002 Railway applications Railway rolling stock cables having special fire performance Test methods EN
31、 60228 Conductors of insulated cables (IEC 60228) EN 60332-1-2 Tests on electric and optical fibre 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 60811-1-1:1995 Insulating and sheat
32、hing materials of electric 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) BS EN 50264-2-1:2008 7 EN 50264-2-1:2008 EN 60811-1-2:1995 Insulating and sheathing mat
33、erials of electric cables Common test methods Part 1-2: General 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 determi
34、ning the density Water absorption tests Shrinkage test (IEC 60811-1-3:1993) 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
35、 Insulating and sheathing materials of electric and optical cables 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
36、 Part 2: Procedure and requirements (IEC 61034-2) HD 308 Identification of cores in cables and flexible cords 3 Definitions For the purposes of this document, the terms and definitions given in EN 50264-1 apply. 4 Rated voltage The rated voltage for single-core insulated cables shall be as follows:
37、a) unsheathed: 0,6/1 kV; 1,8/3 kV; b) sheathed: 1,8/3 kV; 3,6/6 kV. 5 Marking and identification 5.1 Marking of cable Cables shall be marked with the following: manufacturers name; EN reference; voltage rating (Uo); conductor size; a code designation according to Annex A. An example of a complete ma
38、rk is: XYZ EN 50264-2-1 1800 V 400 FF The marking shall conform to the requirements of EN 50264-1, Clause 5. BS EN 50264-2-1:2008EN 50264-2-1:2008 8 5.2 Core identification The core insulation of all cables shall be black unless otherwise specified. If a colour other than black is specified it shall
39、 be a colour in accordance with HD 308. The colour shall be on the surface or throughout the insulation. The colour shall be clearly identifiable and durable. Durability shall be checked by the test given in EN 50305, 10.1. Conformity with these requirements shall be verified by visual examination.
40、5.3 Sheath The sheath shall be black unless otherwise specified. 6 Construction of cables 6.1 General The cable shall conform to the applicable general requirements given in EN 50264-1 and to the specific requirements of this part. Conformity with the requirements shall be checked by inspection and
41、by the tests given in Table 5. The cable dimensions shall be as given in Tables 1 to 4 as appropriate to the cable type. 6.2 Conductor Conductors shall be tin-coated annealed copper, class 5, according to EN 60228. When tested in accordance with EN 10002-1 the minimum average elongation of the wires
42、 from the conductor shall be 15 %, with a minimum value of 10 % for any individual wire. NOTE It is not necessary to test every individual wire. 5 % of wires or 10 wires, whichever is the least number, should be selected at random. 6.3 Conductor screening For cables in Table 4 conductor screening sh
43、all be as given in EN 50264-1, 6.1.6. 6.4 Separator 6.4.1 A separator may be used over the conductor if the cable construction does not include a conductor screen. 6.4.2 A separator may be included between the insulation and the sheath. 6.5 Insulation system The insulation shall be one or more extru
44、ded materials as defined in EN 50264-1 applied so as to meet the requirements of EI 101 to EI 105. BS EN 50264-2-1:2008 9 EN 50264-2-1:2008 For single-core unsheathed and sheathed cable: EI 101 low temperature resistant, oil resistant; EI 102 extra low temperature resistant, oil resistant; EI 103 lo
45、w temperature resistant, extra oil and fuel resistant; EI 104 extra low temperature resistant, extra oil and fuel resistant. For sheathed cables: EI 105 extra low temperature resistant, non oil resistant. EI 105 may be used as the inner layer of a multilayer insulation system. To claim extra low tem
46、perature performance both insulation and sheath shall be extra low temperature resistant. The insulation shall be applied to meet the requirements of EN 50264-1, 6.2. The insulation thickness shall conform to the specified value given in Tables 1 to 4. 6.6 Sheath Sheath shall be an extruded material
47、 as defined in EN 50264-1 applied so as to meet the requirements of compound type EM 101, EM 102, EM 103 or EM 104: EM 101 low temperature resistant, oil resistant; EM 102 extra low temperature resistant, oil resistant; EM 103 low temperature resistant, extra oil and fuel resistant; EM 104 extra low
48、 temperature resistant, extra oil and fuel resistant. The sheath shall consist of one or more closely adherent layers of the same type. The sheath shall be applied to meet the requirements of EN 50264-1, 6.6. The sheath thickness shall conform to the specified value given in Tables 3 and 4. 6.7 Cons
49、tructional components 6.7.1 Unsheathed cable (Tables 1 and 2 - 0,6/1 kV and 1,8/3 kV) Cable in Tables 1 and 2 shall be composed of the following components in the order given: conductor flexible tin coated annealed copper, class 5; separator optional; insulation a compound or compounds given in 6.5. BS EN 50264-2-1:2008EN 50264-2-1:2008 10 6.7.2 Sheathed cable (Table 3 1,8/
