Bsi bs en 50525 2 81 2011

BS EN 50525-2-81:2011 BSI Standards Publication Electric 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 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW raising standards worldwide™ BS EN 50525-2-81:2011 BRITISH STANDARD National foreword This British Standard Standard isis the theUK UKimplementation implementationof ofEN EN50525-2-81:2011 50525-2-81:2011 It partially supersedes BS638-4:1996 In the UK, the BS EN 50525 series of standards contain complex supersession details The table below best summarizes relationship The UK participation in its preparation was entrusted the to Technical between these standards: Committee GEL/20/17, Electric Cables - Low voltage A list1of organizations be Part together with represented on this committee can Supersedes obtained on request to its secretary 2-81 BS 638-4:1996 This publication does not purport to include all the necessary 2-41, 2-42 BS 6007: 2006 provisions of a contract Users are responsible for its correct 2-11 (in part), 2-12, 2-21 (in part), 2-71 BS 6500:2000 application 2-11 (in part), 2-21 (in part), 2-51 (in part), 2-83, 3-21 BS 7919:2001 © BSI 2011 2-31, 2-51 (in part) BS 6004:2000 ISBN 978 580 64372 3-41 BS 7211:1998 ICS 25.160.30; 29.060.20 2-22, 2-72, 2-82, 3-11, 3-31 None BS EN 50525-2-81:2011 Compliance withStandards a British will Standard immunity from NOTE  All British remaincannot currentconfer until they areSTANDARD BRITISH legal obligations withdrawn on 31 December 2012 British Standards in bold are only partially superseded, and new editions of BS 6004 and BS 7211 will be This British Standard was published under the authority of the introduced on 1 January 2013 Standards Policy and Strategy Committee on 30 September 2011 National foreword Amendments issued since publication This British Standard is the UK implementation of EN National Annex NA (informative) gives information on the origins DateidentificationIt Text affected 50525-2-81:2011 supersedes BS638-4:1996 and ofpartially particular cable types The UK participation in its preparation was entrusted to Technical Committee GEL/20/17, Electric Cables - Low voltage A 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 © BSI 2011 ISBN 978 580 64372 ICS 25.160.30; 29.060.20 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2011 Amendments issued since publication Date Text affected BS EN 50525-2-81:2011 EN 50525-2-81 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM May 2011 ICS 29.060.20 Supersedes HD 22.6 S2:1995 + corr Jun.1995 + A1:1999 + A2:2004 English version Electric 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 Câbles électriques Câbles d’énergie basse tension de tension assignée au plus égale 450/750 V (U0/U) Partie 2-81: Câbles pour applications générales Câbles pour soudage l’arc isolés en matériau élastomère réticulé Kabel und Leitungen Starkstromleitungen mit Nennspannungen bis 450/750 V (U0/U) Teil 2-81: Starkstromleitungen für allgemeine Anwendungen Lichtbogenschweißleitungen mit vernetzter Elastomer- Hülle 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 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 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, Croatia, Cyprus, the Czech Republic, 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 CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung 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 BS EN 50525-2-81:2011 EN 50525-2-81:2011 -2- Foreword This European Standard was prepared by the Technical 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 that 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 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  2 Normative references  3 Terms and definitions  4 Arc welding cables – H01N2-D and H01N2-E  4.1  Construction  4.2  Requirements  Annex A (normative) Tests for cables to EN 50525-2-81  Annex B (normative) General data  Annex C (normative) Requirements for the voltage test on completed cables  Annex D (normative) Requirements for the static flexibility test on completed cables 10  Bibliography 11  Tables Table A.1  Table B.1 ― General data for Type H01N2-D  Table B.2 ― General data for Type H01N2-E  Table C.1  Table D.1 10  BS EN 50525-2-81:2011 EN 50525-2-81:2011 -4- Scope This European Standard applies to single core, crosslinked elastomer covered arc welding cables The cables are of rated voltage U /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 flexible than Class 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 drop data This EN 50525-2-81 should be read in conjunction with EN 50525-1, which specifies general requirements 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 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, 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 elastomeric 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 ( U /U) − Part 1: General requirements EN 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 kW pre-mixed flame (IEC 60332-1-2) EN 60811-1-4 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) BS EN 50525-2-81:2011 -5- EN 50525-2-81:2011 Terms and definitions For the purposes of this document, the terms and definitions given in Clause of EN 50525-1 apply Arc welding cables – H01N2-D and H01N2-E 4.1 4.1.1 Construction Conductor The conductor shall be copper, and generally in accordance with class to EN 60228, except that the maximum diameter of wires in a conductor shall comply with the requirements given in column of Table B.1 for cables with normal 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 Table B.1 or Table B.2, in 2 sizes from 10 mm to 240 mm 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 to EN 50363-2-2 Covering in two layers shall comprise an outer layer of material type EM to EN 50363-2-2 and an inner layer which shall be either of type EM or of material type EI 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 marked 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 of EN 50525-1 4.2 4.2.1 Requirements General Each cable shall comply 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 or of Table B.1 or Table B.2 as appropriate The thickness of the covering in one layer or the combined thickness of covering in the two layers shall comply with the specified value given in column of either Table B.1 or Table B.2 as appropriate The dimensions of the cables shall be within the limits specified in columns and of either Table B.1 or Table B.2 as appropriate BS EN 50525-2-81:2011 EN 50525-2-81:2011 -6- The requirements for the voltage test at 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 Samples 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 carried 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 Ref No Tests a Category of test Test method described in EN (Sub)clause T, S 50395 T, S 50395 R 50395 10.2 b Electrical tests 1.1 Resistance of conductors c 1.2 Voltage test at 000 V 1.3 Absence of faults in covering Constructional and dimensional tests 2.1 Checking of compliance with constructional provisions T, S 50525-1 Inspection and manual tests 2.2 Measurement of thickness of covering T, S 50396 4.1 2.3 Measurement of overall diameter T, S 50396 4.4 Covering material tests T 50363-1 and - d 50363-2-2 e Static flexibility test T 50396 6.1 Impact test at - 20 °C T 60811-1-4 8.5 Test for resistance to hot particles T 50396 7.1 Test under fire conditions T 60332-1-2 - a All tests are applicable to these cables The order given does not imply a sequence of testing b Particular test conditions and requirements are given in Table of EN 50525-1 c See also Annex C d See 4.2.2 of this EN 50525-2-81 in respect of tests and requirements for coverings in two 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 50525-2-81:2011 EN 50525-2-81:2011 -8- Annex B (normative) General data NOTE The overall dimensions of cables have been calculated in accordance with EN 60719 Table B.1 ― General data for Type H01N2-D Nominal crosssectional area of conductor Maximum diameter of wires in conductor Thickness of covering Specified value Lower limit Upper limit mm² mm mm mm mm 10 0,21 2,0 7,7 9,7 1,95 1,91 16 0,21 2,0 8,8 11,0 1,24 1,21 25 0,21 2,0 10,1 12,7 0,795 0,780 35 0,21 2,0 11,4 14,2 0,565 0,554 50 0,21 2,2 13,2 16,5 0,393 0,386 70 0,21 2,4 15,3 19,2 0,277 0,272 95 0,21 2,6 17,1 21,4 0,210 0,206 120 0,51 2,8 19,2 24,0 0,164 0,161 150 0,51 3,0 21,1 26,4 0,132 0,129 185 0,51 3,2 23,1 28,9 0,108 0,106 240 0,51 3,4 25,8 32,1 0,081 0,080 a Mean overall diameter Maximum conductor resistance at 20 °C a Tinned wires Untinned wires Ω/km Conductor resistance is according to EN 60228 for class Table B.2 ― General data for Type H01N2-E Nominal crosssectional area of conductor Maximum diameter of wires in conductor Thickness of covering Specified value Lower limit Upper limit mm² mm mm mm mm 10 0,16 1,2 6,2 7,8 1,95 1,91 16 0,16 1,2 7,3 9,1 1,24 1,21 25 0,16 1,2 8,6 10,8 0,795 0,780 35 0,16 1,2 9,8 12,3 0,565 0,554 50 0,16 1,5 11,9 14,8 0,393 0,386 70 0,16 1,5 13,6 17,0 0,277 0,272 95 0,16 1,8 15,6 19,5 0,210 0,206 120 0,21 1,8 17,2 21,6 0,164 0,161 150 0,21 1,8 18,8 23,5 0,132 0,129 185 0,21 1,8 20,4 25,5 0,108 0,106 240 0,21 2,0 23,0 28,0 0,081 0,080 a Mean overall diameter Conductor resistance is according to EN 60228 for class Maximum conductor resistance at 20 °C a Tinned wires Untinned wires Ω/km BS EN 50525-2-81:2011 -9- EN 50525-2-81:2011 Annex C (normative) Requirements for the voltage test on completed cables Table C.1 Unit Value Minimum length of the sample m 20 Minimum period of immersion in water h Temperature of the water °C 20 ± Duration of each application of voltage, minimum 15 Result to be obtained No breakdown BS EN 50525-2-81:2011 EN 50525-2-81:2011 - 10 - Annex D (normative) Requirements for the static flexibility test on completed cables Table D.1 Nominal cross-sectional area Maximum distance L/ cm Class D Class E conductors conductors 10 65 45 16 65 45 25 65 45 35 75 50 50 75 50 70 80 55 mm² 95 90 60 120 110 75 150 130 90 185 150 95 240 170 100 BS EN 50525-2-81:2011 - 11 - EN 50525-2-81:2011 Bibliography EN 60719 Calculation of the lower and upper limits for the average outer dimensions of cables with circular copper conductors and of rated voltages up to and including 450/750 V (IEC 60719) HD 361 System for cable designation HD 516 Guide to use of low voltage harmonized cables This page deliberately left blank BRITISH STANDARD NA to BS EN 50525-2-81:2011 National Annex (informative) Origins and identification of the particular cable types As an aid to users, the table below shows, in respect of BS EN 50525-2-81: —— the identification of the particular cable types from BS 638-4 that are now included in BS EN 50525-2-81; —— the location of the cables within BS EN 50525-2-81; —— any applicable United Kingdom and CENELEC cable codings (see also National Informative Annex B to BS EN 50525-1) Pre-existing BS Number Table BS 638-4 BS 638-4 Clause in BS EN 50525-2-81 Cable type – Coding United Kingdom (if applicable) CENELEC – H01N2-D – H01N2-E © BSI 2011  •  13 NA to BS EN 50525-2-81:2011 14 ã â BSI 2011 BRITISH STANDARD This page deliberately left blank This page deliberately left blank British Standards Institution (BSI) BSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and services It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions Information on standards British Standards are updated by amendment or revision Users of British Standards should make sure that they possess the latest amendments 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