1、 IEC/TR 62602Edition 1.0 2009-09TECHNICAL REPORT RAPPORT TECHNIQUEConductors of insulated cables Data for AWG and KCMIL sizes mes des cbles isols Informations relatives aux sections exprimes en AWG et KCMIL IEC/TR62602:2009 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2009 IEC, Geneva, Switzerl
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16、9 03 00 IEC/TR 62602Edition 1.0 2009-09TECHNICAL REPORT RAPPORT TECHNIQUEConductors of insulated cables Data for AWG and KCMIL sizes mes des cbles isols Informations relatives aux sections exprimes en AWG et KCMIL INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE R
17、ICS 29.060.20 PRICE CODECODE PRIXISBN 2-8318-1064-3 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 TR 62602 IEC:2009 CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Terms and definitions .6 3 Classification6 4 Mate
18、rials 7 4.1 General .7 4.2 Solid aluminium conductors.7 4.3 Circular and shaped stranded aluminium conductors.7 5 Solid conductors and stranded conductors .7 5.1 Solid conductors (Class 1).7 5.1.1 Construction 7 5.1.2 Resistance 7 5.2 Stranded circular non-compacted conductors (Class 2) .8 5.2.1 Con
19、struction 8 5.2.2 Resistance 8 5.3 Stranded compacted circular conductors and stranded shaped conductors (Class 2) .8 5.3.1 Construction 8 5.3.2 Resistance 8 6 Flexible conductors (Classes 5 and 6) 8 6.1 Construction8 6.2 Resistance 8 7 Compliance with Clauses 5 and 6.9 Annex A (informative) Measure
20、ment of resistance .13 Annex B (informative) Exact formulae for the temperature correction factors .15 Annex C (informative) Guidance on the dimensional limits of circular conductors.16 Bibliography19 Table 1 Class 1 solid conductors for single-core and multi-core cables .9 Table 2 Class 2 stranded
21、conductors for single-core and multi-core cables .10 Table 3 Class 5 flexible copper conductors for single core and multi-core cables 11 Table 4 Class 6 flexible copper conductors for single-core and multi-core cables 12 Table A.1 Temperature correction factors ktfor conductor resistance to correct
22、the measured resistance at t C to 20 C 14 Table C.1 Maximum diameters of circular copper conductors, solid, non-compacted stranded and flexible .17 Table C.2 Minimum and maximum diameters of stranded compacted circular copper, aluminium and aluminium alloy conductors 18 Table C.3 Minimum and maximum
23、 diameters of solid circular aluminium conductors .18 TR 62602 IEC:2009 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ CONDUCTORS OF INSULATED CABLES DATA FOR AWG AND KCMIL SIZES FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
24、 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards,
25、 Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparator
26、y work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organization
27、s. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of reco
28、mmendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by a
29、ny end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional pu
30、blication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publicatio
31、n. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or fo
32、r costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct a
33、pplication of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. The main task of IEC technical committees is to prepare Int
34、ernational Standards. However, a technical committee may propose the publication of a technical report when it has collected data of a different kind from that which is normally published as an International Standard, for example “state of the art“. IEC/TR 62602, which is a technical report, has bee
35、n prepared by IEC technical committee 20: Electric cables. The text of this technical report is based on the following documents: Enquiry draft Report on voting 20/1048/DTR 20/1061/RVC Full information on the voting for the approval of this technical report can be found in the report on voting indic
36、ated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 4 TR 62602 IEC:2009 The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstor
37、e.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. TR 62602 IEC:2009 5 INTRODUCTION Conductors described in IEC 60228 11are specified in metric sizes. North America and certain other regi
38、ons at present use conductor sizes and characteristics according to the American Wire Gauge (AWG) system, and kcmil for larger sizes. The use of these sizes is currently prescribed across North America and elsewhere for installations by sub-national regulations. IEC TC 20 cable product standards do
39、not prescribe cables with AWG/kcmil conductors. IEC TC 20 recognizes the need to produce a single, harmonized standard for conductors that is truly international. Harmonization, in this respect, is understood as the merging of AWG-based and metric-based sizes to produce one rationalized range of con
40、ductor sizes for power cables. TC 20 also recognizes that the development of such a harmonized standard is a long-term project. A three-stage approach, which will culminate in a single International Standard for conductors, has been agreed. Stage one of the approach is to produce a technical report
41、that defines the range of AWG/kcmil sizes that are to be considered in the harmonization process. Stage two of the process is to develop this technical report by starting the rationalization process. The test methods and requirements in this technical report are to be aligned with those in IEC 60228
42、. The third and final stage will be to produce a harmonized standard, based on IEC 60228 and the work of the first two stages, with a single, rationalized range of conductor sizes. The present expectation is that the third stage will not be achieved before 2020. This technical report provides resist
43、ance and dimensional details for AWG and kcmil sizes as well as giving approximate equivalent metric nominal cross-sectional areas. The tabulated values of resistance given in this technical report are for single-core cables. Factors are given to determine the maximum resistance for multi-core cable
44、s. The alignment of single-core and multi-core cable conductor resistance is to be considered in stage two. 1Figures in square brackets refer to the bibliography. 6 TR 62602 IEC:2009 CONDUCTORS OF INSULATED CABLES DATA FOR AWG AND KCMIL SIZES 1 Scope IEC/TR 62602, which is a technical report, specif
45、ies the nominal cross-sectional areas, in the range 20 AWG to 2 000 kcmil (0,52 mm2to 1 010 mm2), for conductors in electric power cables and cords for a wide range of types. Requirements for numbers and sizes of wires and resistance values are also included. These conductors include solid and stran
46、ded copper, aluminium and aluminium alloy conductors in cables for fixed installations and flexible copper conductors. This technical report is not intended to apply to conductors designed for use in cables intended for telecommunication or data transmission, winding wires or similar products. Unles
47、s indicated to the contrary in a particular clause, this technical report relates to conductors in finished cables and not to conductors made or supplied for inclusion into a cable. The annexes give supplementary information covering measurement of resistance (Annex A), temperature correction factor
48、s for resistance measurement (Annex B) and dimensional limits of circular conductors (Annex C). 2 Terms and definitions For the purposes of this document, the following definitions apply. 2.1 metal-coated coated with a thin layer of suitable metal, such as tin or tin alloy 2.2 nominal cross-sectiona
49、l area value that identifies a particular size of conductor but is not subject to direct measurement NOTE Each particular size of conductor in this technical report is required to meet a maximum resistance value. 3 Classification The conductors have been divided into four classes, 1, 2, 5 and 6. Those in Classes 1 and 2 are intended for use in cables for fixed installations. Classes 5 and 6 are inte
