BS EN 50525-2-81-2011 Electric cables Low voltage energy cables of rated voltages up to and including 450 750 V (U0 U) Cables for general applications Cables with crosslinked elast.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50525-2-81:2011Electric cables Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) Part 2-81: Cables for general applications Cables with cross

2、linked elastomeric covering for arc weldingBS EN 50525-2-81:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN50525-2-81:2011. It partially supersedes BS638-4:1996.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/20/17, Electric

3、Cables - Low voltage.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 64372 9ICS 25.160.30;

4、 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2011.Amendments issued since publicationDate Text affectedBS EN 50525-2-81:2011 BRITISH STAN

5、DARDNational forewordThis British Standard is the UK implementation of EN50525-2-81:2011. It partially supersedes BS638-4:1996.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/20/17, Electric Cables - Low voltage.A list of organizations represented on this committee ca

6、n beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 64372 9ICS 25.160.30; 29.060.20Compliance with a British Standard cannot confer immunity fromlegal

7、 obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2011.Amendments issued since publicationDate Text affectedThis British Standard is the UK implementation of EN 50525-2-81:2011. In the UK, the BS EN 50525 series of stan

8、dards nullontain nullomplenullsnullpersession details. The tanullle nullelonull nullest snullmmarinulles the relationship nulletnulleen these standards:Part 1 together with Supersedes2-81 BS nullnull8-null:1nullnullnull2-null1, 2-null2 BS null00null: 200null2-11 nullin partnull, 2-12, 2-21 nullin pa

9、rtnull, 2-null1 BS null500:20002-11 nullin partnull, 2-21 nullin partnull, 2-51 nullin partnull, 2-8null, null-21 BS nullnull1null:20012-null1, 2-51 nullin partnull BS 6004:2000null-null1 BS 7211:19982-22, 2-null2, 2-82, null-11, null-null1 NoneNOTE All British Standards will remain current until th

10、ey are withdrawn on 31 December 2012. British Standards in bold are only partially supersedednull and new editions onull BS null00null and BS null211 will be introduced on 1 nullanuary 2013.National nullnnenull Nnull nullinformatinullenull nullinulles information on the orinullins and identinullnull

11、ation of partinullnulllar nullanullle tnullpes.BS EN 50525-2-81:2011EUROPEAN STANDARD EN 50525-2-81 NORME EUROPENNE EUROPISCHE NORM May 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normun

12、g Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50525-2-81:2011 E ICS 29.060.20 Supersedes HD 22.6 S2:1995 + corr. Jun.1995 + A1:1999 + A2:2004English version Electric

13、cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) - Part 2-81: Cables for general applications - Cables with crosslinked elastomeric covering for arc welding Cbles lectriques - Cbles dnergie basse tension de tension assigne au plus gale 450/750 V (U0/U) - Part

14、ie 2-81: Cbles pour applications gnrales - Cbles pour soudage larc isols en matriau lastomre rticul Kabel und Leitungen - Starkstromleitungen mit Nennspannungen bis 450/750 V (U0/U) - Teil 2-81: Starkstromleitungen fr allgemeine Anwendungen - Lichtbogenschweileitungen mit vernetzter Elastomer- Hlle

15、This European Standard was approved by CENELEC on 2011-01-17. 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

16、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 of a CENE

17、LEC 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, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece,

18、Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 50525-2-81:2011EN 50525-2-81:2011 - 2 - Foreword This European Standard was prepared by the Technic

19、al Committee CENELEC TC 20, Electric cables. The text of the draft was submitted to the formal vote and was accepted by CENELEC as EN 50525-2-81 on 2011-01-17. This document, which is one of a multipart series, supersedes HD 22.6 S2:1995 + A1:1999 + A2:2004. Attention is drawn to the possibility tha

20、t some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical

21、 national standard or by endorsement (dop) 2012-01-17 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2014-01-17 _ BS EN 50525-2-81:2011- 3 - EN 50525-2-81:2011 Contents Page 1 Scope 42 Normative references . 43 Terms and definitions . 54 Arc welding ca

22、bles H01N2-D and H01N2-E . 54.1 Construction . 54.2 Requirements . 5Annex A (normative) Tests for cables to EN 50525-2-81 7Annex B (normative) General data . 8Annex C (normative) Requirements for the voltage test on completed cables 9Annex D (normative) Requirements for the static flexibility test o

23、n completed cables . 10Bibliography . 11Tables Table A.1 7Table B.1 General data for Type H01N2-D . 8Table B.2 General data for Type H01N2-E . 8Table C.1 . 9Table D.1 . 10BS EN 50525-2-81:2011EN 50525-2-81:2011 - 4 - 1 Scope This European Standard applies to single core, crosslinked elastomer covere

24、d arc welding cables. The cables are of rated voltage U0/U 100/100 V. The cables are intended for connections between the welding power source and the electrode holder and the work piece. Two types of cable are included, with respectively Class D and Class E conductors. These conductors are more fle

25、xible than Class 6 to EN 60228, with Class E having the greater flexibility. The maximum conductor operating temperature for each of the cables in this standard is 85 C. NOTE HD 516 contains extensive guidance on the safe use of cables in this standard, and gives specific current ratings and volt dr

26、op data. This EN 50525-2-81 should be read in conjunction with EN 50525-1, which specifies general requirements. 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 referen

27、ces, the latest edition of the referenced document (including any amendments) applies. NOTE One or more references to the standards below are in respect of a specific sub-division of that standard, for instance a clause, a table, a class or a type. Cross-references to these standards are undated and

28、, at all times, the latest version shall apply. EN 50363-1 Insulating, sheathing and covering materials for low voltage energy cables Part 1: Cross-linked elastomeric insulating compounds EN 50363-2-2 Insulating, sheathing and covering materials for low voltage energy cables Part 2-2: Cross-linked e

29、lastomeric covering compounds EN 50395 Electrical test methods for low voltage energy cables EN 50396 Non electrical test methods for low voltage energy cables EN 50525-1 Electric cables Low voltage energy cables of rated voltages up to and including 450/750 V (U0/U) Part 1: General requirements EN

30、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 60811-1-4 Insulating and sheathing m

31、aterials of electric and optical cables Common test methods Part 1-4: General application Tests at low temperature (IEC 60811-1-4) BS EN 50525-2-81:2011- 5 - EN 50525-2-81:2011 3 Terms and definitions For the purposes of this document, the terms and definitions given in Clause 3 of EN 50525-1 apply.

32、 4 Arc welding cables H01N2-D and H01N2-E 4.1 Construction 4.1.1 Conductor The conductor shall be copper, and generally in accordance with class 6 to EN 60228, except that the maximum diameter of wires in a conductor shall comply with the requirements given in column 2 of Table B.1 for cables with n

33、ormal flexibility, or of Table B.2 for cables with extra high flexibility. NOTE The individual wires of a conductor may be plain or tinned. A separator of suitable material shall be applied around the conductor. 4.1.2 Size of cable The cable shall consist of a single conductor in accordance with Tab

34、le B.1 or Table B.2, in sizes from 10 mm2to 240 mm2. 4.1.3 Covering The covering shall be applied by extrusion around the conductor and may consist of one or two layers. Covering in one layer shall be material type EM 5 to EN 50363-2-2. Covering in two layers shall comprise an outer layer of materia

35、l type EM 5 to EN 50363-2-2 and an inner layer which shall be either of type EM 5 or of material type EI 7 to EN 50363-1. The ratio of the thicknesses of the two layers is not specified, but the minimum thickness of the outer layer shall not be less than 0,6 mm. 4.1.4 Marking The cable shall be mark

36、ed with the CENELEC code H01N2-D for cables with normal flexibility, or H01N2-E for cables with extra high flexibility. In addition, the cross-sectional area of the conductor shall be marked. The marking shall comply with Clause 6 of EN 50525-1. 4.2 Requirements 4.2.1 General Each cable shall comply

37、 with the appropriate requirements given in EN 50525-1, and the particular requirements of this Part. Testing shall be in accordance with Annex A. The conductor resistance shall not exceed the relevant value given in column 6 or 7 of Table B.1 or Table B.2 as appropriate. The thickness of the coveri

38、ng in one layer or the combined thickness of covering in the two layers shall comply with the specified value given in column 3 of either Table B.1 or Table B.2 as appropriate. The dimensions of the cables shall be within the limits specified in columns 4 and 5 of either Table B.1 or Table B.2 as ap

39、propriate. BS EN 50525-2-81:2011EN 50525-2-81:2011 - 6 - The requirements for the voltage test at 1 000 V on completed cables shall be in accordance with Annex C. The requirements for the static flexibility test on completed cables shall be in accordance with Annex D. 4.2.2 Two-layer coverings Sampl

40、es for non-electrical tests on covering in two layers shall be prepared and tested in accordance with EN 50525-1, 5.7.2.3, c). Full testing shall be carried out on both layers, except where the resulting sample from the inner layer is below 0,8 mm thickness. In this case full testing shall be carrie

41、d out on the outer layer, but only the hot set test shall be carried out on the inner layer. BS EN 50525-2-81:2011- 7 - EN 50525-2-81:2011 Annex A (normative) Tests for cables to EN 50525-2-81 Table A.1 1 2 3 4 5 Ref No. Tests a Category of test Test method described in EN (Sub)clause 1 Electrical t

42、ests b 1.1 Resistance of conductors T, S 50395 5 1.2 Voltage test at 1 000 V c T, S 50395 6 1.3 Absence of faults in covering R 50395 10.2 2 Constructional and dimensional tests 2.1 Checking of compliance with constructional provisions T, S 50525-1 Inspection and manual tests 2.2 Measurement of thic

43、kness of covering T, S 50396 4.1 2.3 Measurement of overall diameter T, S 50396 4.4 3 Covering material tests d T 50363-1 and 50363-2-2e - 4 Static flexibility test T 50396 6.1 5 Impact test at - 20 C T 60811-1-4 8.5 6 Test for resistance to hot particles T 50396 7.1 7 Test under fire conditions T 6

44、0332-1-2 - a All tests are applicable to these cables. The order given does not imply a sequence of testing. bParticular test conditions and requirements are given in Table 1 of EN 50525-1. cSee also Annex C. d See 4.2.2 of this EN 50525-2-81 in respect of tests and requirements for coverings in two

45、 layers. e These ENs includes all the test methods and requirements for the material. Material to be tested is taken from the finished cable. BS EN 50525-2-81:2011EN 50525-2-81:2011 - 8 - Annex B (normative) General data NOTE The overall dimensions of cables have been calculated in accordance with E

46、N 60719. Table B.1 General data for Type H01N2-D 1 2 3 4 5 6 7 Nominal cross-sectional area of conductor Maximum diameter of wires in conductor Thickness of covering Specified value Mean overall diameter Maximum conductor resistance at 20 C a Lower limit Upper limit Tinned wires Untinned wires mm mm

47、 mm mm mm /km 10 16 25 35 50 70 95 120 150 185 240 0,21 0,21 0,21 0,21 0,21 0,21 0,21 0,51 0,51 0,51 0,51 2,0 2,0 2,0 2,0 2,2 2,4 2,6 2,8 3,0 3,2 3,4 7,7 8,8 10,1 11,4 13,2 15,3 17,1 19,2 21,1 23,1 25,8 9,7 11,0 12,7 14,2 16,5 19,2 21,4 24,0 26,4 28,9 32,1 1,95 1,24 0,795 0,565 0,393 0,277 0,210 0,1

48、64 0,132 0,108 0,081 7 1,91 1,21 0,780 0,554 0,386 0,272 0,206 0,161 0,129 0,106 0,080 1 a Conductor resistance is according to EN 60228 for class 6. Table B.2 General data for Type H01N2-E 1 2 3 4 5 6 7 Nominal cross-sectional area of conductor Maximum diameter of wires in conductor Thickness of co

49、vering Specified value Mean overall diameter Maximum conductor resistance at 20 C a Lower limit Upper limit Tinned wires Untinned wires mm mm mm mm mm /km 10 16 25 35 50 70 95 120 150 185 240 0,16 0,16 0,16 0,16 0,16 0,16 0,16 0,21 0,21 0,21 0,21 1,2 1,2 1,2 1,2 1,5 1,5 1,8 1,8 1,8 1,8 2,0 6,2 7,3 8,6 9,8 11,9 13,6 15,6 17,2 18,8 20,4 23,0 7,8 9,1 10,8 12,3 14,8 17,0 19,5 21,6 23,5 25,5 28,0 1,95 1,24 0,795 0,565 0,393 0,277 0,210 0,164 0,132 0,108 0,081 7 1,9