1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Cables for signs and luminous-discharge-tubeinstallations operating from ano-load rated output voltageexceeding 1
2、 000 V but notexceeding 10 000 VBS EN 50143:2009National forewordThis British Standard is the UK implementation of EN 50143:2009. It super-sedes BS EN 50143:1999 which is withdrawn.The UK participation in its preparation was entrusted by Technical CommitteeGEL/20, Electric cables, to Subcommittee GE
3、L/20/17, Low voltage cables.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2009ISBN 978 0 580 58690 3ICS 29
4、.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 May 2009Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 50143:2009EUR
5、OPEAN STANDARD EN 50143 NORME EUROPENNE EUROPISCHE NORM March 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: avenue Marnix 17, B - 1000 Brussels 2009 CENELEC -
6、All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50143:2009 E ICS 29.060.20 Supersedes EN 50143:1997 + A1:2003English version Cables for signs and luminous-discharge-tube installations operating from a no-load rated output voltage exceeding
7、1 000 V but not exceeding 10 000 V Cbles pour installations denseignes et de tubes dcharges lumineuses fonctionnant avec une tension vide suprieure 1 000 V mais ne dpassant pas 10 000 V Leitungen fr Leuchtrhrengerte und Leuchtrhren-Anlagen mit einer Leerlaufspannung von ber 1 000 V, aber nicht ber 1
8、0 000 V This European Standard was approved by CENELEC on 2009-02-01. 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 bibliogr
9、aphical 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 translation under the responsibility o
10、f 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 Republic, Denmark, Estonia, Finland, France, Germany, Greece, H
11、ungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 50143:2009EN 50143:2009 2 Foreword This European Standard was prepared by the Technical Committee CE
12、NELEC TC 20, Electric cables. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50143 on 2009-02-01. This European Standard supersedes EN 50143:1997 + A1:2003. The following dates were fixed: latest date by which the EN has to be implemented at national level b
13、y publication of an identical national standard or by endorsement (dop) 2010-02-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-02-01 _ BS EN 50143:2009 3 EN 50143:2009 Contents Introduction 5 1 Scope 6 2 Normative references . 6 3 Terms and def
14、initions 7 4 Rated voltage . 7 5 General requirements for the construction of cables . 8 5.1 Conductors . 8 5.2 Insulation 8 5.3 Oversheath . 8 5.4 Non-metallic components of halogen free cables . 9 6 Cable types . 9 6.1 General . 9 6.2 Requirements 10 7 Silicone rubber insulated cables (types B, C2
15、 and D2) . 10 7.1 Construction 10 7.2 Tests 10 7.3 Maximum continuous conductor temperature . 11 8 PVC insulated cables (types E, F and G) . 14 8.1 Construction 14 8.2 Tests 14 8.3 Maximum continuous conductor temperature . 14 9 Cables with a composite insulation of polyethylene and PVC (type K) 18
16、9.1 Construction 18 9.2 Tests 18 9.3 Maximum continuous conductor temperature . 18 10 Silicone rubber insulated cables (type L) 20 10.1 Construction 20 10.2 Tests 20 10.3 Maximum continuous conductor temperature . 20 11 Test methods 22 11.1 General . 22 11.2 Classification of test according to the f
17、requency with which they are carried out . 22 11.3 Sampling . 22 11.4 Pre-conditioning 22 11.5 Test temperature . 22 11.6 Test voltage 22 12 Marking . 22 12.1 Indication of origin . 22 12.2 Indication of cable type and rated voltage 23 12.3 Continuity of marks . 23 12.4 Additional marking. 23 12.5 D
18、urability . 23 12.6 Legibility . 23 12.7 Use of the name CENELEC . 23 13 Guide to use (informative) . 23 BS EN 50143:2009EN 50143:2009 4 Annex A (normative) Requirements for halogens . 24 Annex B (normative) Determination of halogens- Elemental test. 26 Annex C (normative) Requirements for the non-e
19、lectrical tests for type ZM1 sheath . 28 Annex D (normative) Requirements for the compatibility test . 30 Annex E (normative) Electrical test methods 31 Annex F (normative) Non-electrical test methods. 33 Annex G (normative) Requirements for the non-electrical tests for polyethylene insulation 34 Fi
20、gures Figure 1 - Example of marking used on the outer surface of a cable 23 Figure E.1 - Cable trough 32 Figure E.2 - Test arrangement for resistance to long term breakdown . 32 Tables Table 1 - Maximum permitted voltages against rated voltage of cable in an a.c. system . 7 Table 2 - General data fo
21、r cables type B, C2 and D2 to EN 50143 . 11 Table 3 - Tests for cables type B, C2 and D2 to EN 50143 . 12 Table 4 - List of applicable tests for cables type B, C2 and D2 . 13 Table 5 - General data for cables type E, F and G to EN 50143 . 15 Table 6 - Tests for cables type E, F and G to EN 50143 . 1
22、6 Table 7 - List of applicable tests for cables type E, F and G. 17 Table 8 - Dimensions of cables type K to EN 50143 18 Table 9 - Tests for cables type K to EN 50143 . 19 Table 10 - General data for cables type L to EN 50143 20 Table 11 - Tests for cables type L to EN 50143 . 21 Table A.1 - Test me
23、thod, measurement, requirements 24 Table A.2 - Sequential test programme . 25 Table C.1 . 28 Table D.1 - Requirements . 30 Table G.1 . 34 BS EN 50143:2009 5 EN 50143:2009 Introduction This revision of EN 50143 is made at the request of the European Sign Federation (ESF). It supports EN 50107. By com
24、parison with EN 50143:1997 the number of cable types has been rationalised. One new type (type L) has been introduced, and four types (types A, C1, D1 and H) withdrawn. The object of the European Standard remains unchanged, namely: - to standardise cables and cords that are safe and reliable when pr
25、operly used in relation to the technical requirements of the installation of which they form a part; - to state the characteristics and manufacturing requirements directly or indirectly bearing on safety; and - to specify methods for checking conformity with those requirements. BS EN 50143:2009EN 50
26、143:2009 6 1 Scope EN 50143 applies to single core cables of rated voltages up to and including 5/10 kV (Uo/U) used with electric signs and high-voltage luminous-discharge-tube installations. These cables are for use in installations complying with EN 50107. The particular types of cables are specif
27、ied in Clauses 7 to 10 of this standard. 2 Normative references The following referenced documents are indispensable for 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 amendm
28、ents) applies. EN 50107 (series) Signs and luminous-discharge-tube installations operating from a no-load rated output voltage exceeding 1 kV but not exceeding 10 kV EN 50267-2-1 Common test methods for cables under fire conditions - Tests on gases evolved during combustion of materials from cables
29、- Part 2-1: Procedures - Determination of the amount of halogen acid gas EN 50267-2-2 1998 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 of gases for materials by me
30、asuring pH and conductivity EN 50363-1 2005 Insulating, sheathing and covering materials for low voltage energy cables - Part 1: Cross-linked elastomeric insulating compounds EN 50363-3 2005 Insulating, sheathing and covering materials for low voltage energy cables - Part 3: PVC insulating compounds
31、 EN 50363-4-1 2005 Insulating, sheathing and covering materials for low voltage energy cables - Part 4-1: PVC sheathing compounds EN 50395 2005 Electrical test methods for low voltage energy cables EN 50396 2005 Non electrical test methods for low voltage energy cables EN 60228 Conductors of insulat
32、ed 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 60684-2 Flexible insulating sleeving - Part 2: Methods of t
33、est (IEC 60684-2) EN 60811 (series) Insulating and sheathing materials of electric and optical cables - Common test methods (IEC 60811 series) EN 61034-2 Measurement of smoke density of cables burning under defined conditions - Part 2: Test procedure and requirements (IEC 61034-2) BS EN 50143:2009 7
34、 EN 50143:2009 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 type tests (symbol T) tests required to be made before supplying a type of cable covered by this standard on a general commercial basis, in order to demonstrate satisfactory perfo
35、rmance characteristics to meet the intended application NOTE These tests are of such a nature that, after they have been made, they need not be repeated unless changes are made in the cable materials, design or type of manufacturing process which might change the performance characteristics. 3.2 sam
36、ple tests (symbol S) tests made on samples of completed cable, or components taken from a completed cable adequate to verify that the finished product meets the design specifications 3.3 routine tests (symbol R) tests made on all production cable lengths to demonstrate their integrity 4 Rated voltag
37、e The rated voltage of a cable is the reference voltage for which the cable is designed, and which serves to define the electrical tests. The rated voltage is expressed by the combination of two values Uo/U, expressed in volts: - Uobeing the r.m.s. value between any insulated conductor and “earth“ (
38、metal covering of the cable or the surrounding medium); - U being the r.m.s. value between any two phase-conductors of a system of single-core cables. In an alternating current system, the rated voltage of a cable shall be at least equal to the nominal voltage of the system for which it is intended.
39、 This condition applies both to the value Uoand to the value U. In a direct current system, the maximum permanent operating voltage of the system is stated in Table 1. Table 1 - Maximum permitted voltages against rated voltage of cable in an a.c. system Rated voltage of cable (U0/U) Maximum permanen
40、t permitted operating voltage (a.c.) of the system (Conductor-earth) kV kV max.2,5/5 2,75 3/6 3,3 5/10 5,5 BS EN 50143:2009EN 50143:2009 8 5 General requirements for the construction of cables 5.1 Conductors 5.1.1 Construction The classes of the conductors relevant to the various types of cables are
41、 given in Clauses 7 to 10. 5.1.2 Check of construction Compliance with the requirements of 5.1.1, including the requirements of EN 60228, shall be checked by inspection and by measurement. 5.1.3 Electrical resistance The resistance of each conductor at 20 C shall be in accordance with the requiremen
42、ts of EN 60228 for the given class of conductor. Compliance shall be checked by the test given in Clause 5 of EN 50395. 5.2 Insulation 5.2.1 Material The insulation shall be a compound as specified for each type of cable in Clauses 7 to 10. The test requirements for these compounds are specified for
43、 the particular cable. Maximum material operating temperatures are stated in the relevant part of EN 50363. 5.2.2 Application to the conductor The insulation may consist of one or more bonded layers. The insulation shall be so applied that it fits closely on the conductor and it shall be possible to
44、 remove the insulation without damage to the remaining insulation, to the conductor, or to the tin coating. If required, compliance shall be checked by inspection and by manual test. The insulation shall be applied by an extrusion process, cross-linked where required, and shall form a compact and ho
45、mogeneous body. 5.2.3 Thickness The mean value of the thickness of insulation shall not be less than the specified value for each type and size of cable. However, the thickness at any one place may be less than the specified value provided that the difference does not exceed 0,1 mm + 10 % of the spe
46、cified value. Compliance shall be checked by the test given in 4.1 of EN 50396. 5.3 Oversheath 5.3.1 Material The oversheath shall be a compound of the type specified for each type of cable in Clauses 7 to 10. The test requirements for these compounds are specified for the particular cable. 5.3.2 Ap
47、plication The oversheath shall be extruded. BS EN 50143:2009 9 EN 50143:2009 5.3.3 Thickness The mean value of the thickness of the oversheath shall not be less than the specified value for each type and size of cable. However, the thickness at any place may be less than the specified value provided
48、 that the difference does not exceed 0,1 mm + 15 % of the specified value. Compliance shall be checked by the test given in 4.2 of EN 50396. 5.3.4 Overall dimensions The mean overall dimensions of the cable shall be within the limits specified in the tables for each type and size of cable in Clauses
49、 7 to 10. The difference between any two values of the overall diameter of sheathed circular cables at the same cross-section (ovality) shall not exceed 15 % of the upper limit specified for the mean overall diameter. Compliance shall be checked by the test given in 4.4 of EN 50396. 5.4 Non-metallic components of halogen free cables All non-metallic components of cable types C2 and D2 shall be halogen free. This shall be checked by the procedure given in Annex A, unless otherwise specified for the particular
