BS EN 60228-2005 Conductors of insulated cables《绝缘电缆导线》.pdf

1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58The European Standard EN 60228:2005 has the status of a British StandardICS 29.060.20Conductors of

2、insulated cablesBRITISH STANDARDBS EN 60228:2005Incorporating corrigendum no. 1BS EN 60228:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 24 March 2005 BSI 2007ISBN 0 580 45656 0A list of organizations represented on this subcommittee ca

3、n be obtained on Amendments issued since publicationAmd. No. Date Comments17085Corrigendum No. 131 May 2007 Changes to EN title page.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.Com

4、pliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of EN 60228:2005, incorporating corrigendum May 2005. It is identical with IEC 60228:2004. It supersedes BS 6360:1991, which will be

5、withdrawn on 1 December 2007.The UK participation in its preparation was entrusted by Technical Committee GEL/20, Electric cables, to Subcommittee GEL/20/16, Medium/high voltage cables.EUROPEAN STANDARD EN 60228 NORME EUROPENNE EUROPISCHE NORM February 2005 CENELEC European Committee for Electrotech

6、nical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN

7、 60228:2005 E ICS 29.060.20 Supersedes HD 383 S2:1986 + A1:1989 + A2:1993English version Conductors of insulated cables (IEC 60228:2004) Ames des cbles isols (CEI 60228:2004) Leiter fr Kabel und isolierte Leitungen (IEC 60228:2004) This European Standard was approved by CENELEC on 2004-12-07. CENELE

8、C 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 app

9、lication 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 Secreta

10、riat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway

11、, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Incorporating corrigendum May 20056 NE2202:8500 2 Foreword The text of document 20/718/FDIS, future edition 3 of IEC 60228, prepared by IEC TC 20, Electric cables, was submitted to the IEC-CENELEC parallel vote an

12、d was approved by CENELEC as EN 60228 on 2004-12-07. A draft amendment, prepared by the Technical Committee CENELEC TC 20, Electric cables, was submitted to the formal vote and was approved by CENELEC for inclusion into EN 60228 on 2004-12-07. This European Standard supersedes HD 383 S2:1986 + A1:19

13、89 + A2:1993. The principal changes with respect to HD 383 S2 are addition of a definition for nominal cross-sectional area; an increase in the range of conductor sizes in Tables 1 and 2; addition of a note that solid aluminium alloy conductors, having the same dimensions as aluminium conductors, wi

14、ll have a higher resistance; strengthening of the recommendations for dimensional limits of compacted stranded copper conductors. 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 (do

15、p) 2005-09-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2007-12-01 Annex ZA, Special national conditions, has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60228:2004 was approved by CENELEC as a European S

16、tandard without any modification. _ Page 2EN 60228:200582206 4002:CEI 3 CONTENTS FOREWORD 2 INTRODUCTION.41 Scope.52 Terms and definitions .53 Classification5 4 Materials 6 4.1 Introduction .6 4.2 Solid aluminium conductors .64.3 Circular and shaped stranded aluminium conductors65 Solid conductors a

17、nd stranded conductors. .6 5.1 Solid conductors (class 1)6 5.1.1 Construction 6 5.1.2 Resistance.7 5.2 Stranded circular non-compacted conductors (class 2).75.2.1 Construction 7 5.2.2 Resistance.7 5.3 Stranded compacted circular conductors and stranded shaped conductors (class 2) 7 5.3.1 Constructio

18、n 7 5.3.2 Resistance.7 6 Flexible conductors (classes 5 and 6). 7 6.1 Construction7 6.2 Resistance 8 7 Check of compliance with Clauses 5 and 68 Annex A (normative) Measurement of resistance12Annex B (informative) Exact formulae for the temperature correction factors.14 Annex C (informative) Guide t

19、o the dimensional limits of circular conductors 15 Page 3EN 60228:2005Annex ZA (normative) Special national conditions 19corresponding European publications . 1982206 4002:CEI 9 INTRODUCTION IEC 60228 is intended as a fundamental reference standard for IEC Technical Committees and National Committee

20、s in drafting standards for electric cables, and to the National Committees in drafting specifications for use in their own countries. These committees should select from the tables of this general standard the conductors appropriate to the particular applications with which they are concerned and e

21、ither include the applicable details in their cable specifications or make appropriate references to this standard. In preparing this edition the main objects have been to incorporate IEC 60228A into it and maintain a simplified yet informative standard so far as is compatible with technical and eco

22、nomic considerations. Page 4EN 60228:200582206 4002:CEI 11 CONDUCTORS OF INSULATED CABLES 1 Scope This International Standard specifies the nominal cross-sectional areas, in the range 0,5 mm2to 2 500 mm2, for conductors in electric power cables and cords of a wide range of types. Requirements for nu

23、mbers and sizes of wires and resistance values are also included. These conductors include solid and stranded copper, aluminium and aluminium alloy conductors in cables for fixed installations and flexible copper conductors. The standard does not apply to conductors for telecommunication purposes. T

24、he applicability of this standard to a particular type of cable is as specified in the standard for the type of cable. Unless indicated to the contrary in a particular clause, this standard relates to the conductors in the finished cable and not to the conductor as made or supplied for inclusion int

25、o a cable. Informative annexes are included giving supplementary information covering temperature correction factors 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 terms and defini

26、tions apply. 2.1 metal-coated coated with a thin layer of suitable metal, such as tin or tin alloy 2.2 nominal cross-sectional area value that identifies a particular size of conductor but is not subject to direct measurement NOTE Each particular size of conductor in this standard is required to mee

27、t 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 intended for use in flexible cables and cords but may also be used for fixed installa

28、tions. Class 1: solid conductors. Class 2: stranded conductors. Class 5: flexible conductors. Class 6: flexible conductors which are more flexible than class 5. Page 5EN 60228:200582206 4002:CEI 31 4 Materials 4.1 Introduction The conductors shall consist of one of the following: plain or metal-coat

29、ed annealed copper; aluminium or aluminium alloy. 4.2 Solid aluminium conductors Circular and shaped solid aluminium conductors shall be made from aluminium such that the tensile strength of the completed conductor is within the following limits: Nominal cross-sectional area mm2Tensile strength N/mm

30、210 and 16 110 to 165 25 and 35 60 to 130 50 60 to 110 70 and above 60 to 90 NOTE The values given above are not applicable to aluminium alloy conductors. 4.3 Circular and shaped stranded aluminium conductors Stranded aluminium conductors shall be made from aluminium such that the tensile strength o

31、f the individual wires is within the following limits: Nominal cross-sectional area mm2Tensile strength N/mm210 up to 200 16 and above 125 to 205 NOTE 1 The values given above are not applicable to aluminium alloy conductors. NOTE 2 This data can only be checked on wires taken before stranding and n

32、ot on wires taken from a stranded conductor. 5 Solid conductors and stranded conductors 5.1 Solid conductors (class 1) 5.1.1 Construction a) Solid conductors (class 1) shall consist of one of the materials specified in Clause 4. b) Solid copper conductors shall be of circular cross-section. NOTE Sol

33、id copper conductors having nominal cross-sectional areas of 25 mm2and above are for particular types of cable, e.g. mineral insulated, and not for general purposes. c) Solid aluminium and solid aluminium alloy conductors of sizes 10 mm2to 35 mm2shall be of circular cross-section. Larger sizes shall

34、 be of circular cross-section for single-core cables and may be of either circular or shaped cross-section for multi-core cables. Page 6EN 60228:200582206 4002:CEI 51 5.1.2 Resistance The resistance of each conductor at 20 C, when determined in accordance with Clause 7, shall not exceed the appropri

35、ate maximum value given in Table 1. NOTE For solid aluminium alloy conductors, having the same nominal cross-sectional area as an aluminium conductor the resistance value given in Table 1 should be multiplied by a factor of 1,162 unless otherwise agreed between the manufacturer and the purchaser. 5.

36、2 Stranded circular non-compacted conductors (class 2) 5.2.1 Construction a) Stranded circular non-compacted conductors (class 2) shall consist of one of the materials specified in Clause 4. b) Stranded aluminium or aluminium alloy conductors shall have a cross-sectional area not less than 10 mm2. c

37、) The wires in each conductor shall all have the same nominal diameter. d) The number of wires in each conductor shall be not less than the appropriate minimum number given in Table 2. 5.2.2 Resistance The resistance of each conductor at 20 C, when determined in accordance with Clause 7, shall not e

38、xceed the appropriate maximum value given in Table 2. 5.3 Stranded compacted circular conductors and stranded shaped conductors (class 2) 5.3.1 Construction a) Stranded compacted circular conductors and stranded shaped conductors (class 2) shall consist of one of the materials specified in Clause 4.

39、 Stranded compacted circular aluminium or aluminium alloy conductors shall have a nominal cross-sectional area not less than 10 mm2. Stranded shaped copper, aluminium or aluminium alloy conductors shall have a nominal cross-sectional area of not less than 25 mm2. b) The ratio of the diameters of two

40、 different wires in the same conductor shall not exceed 2. c) The number of wires in each conductor shall be not less than the appropriate minimum number given in Table 2. NOTE This requirement applies to conductors made with wires of circular cross-section before compaction and not to conductors ma

41、de with pre-shaped wires. 5.3.2 Resistance The resistance of each conductor at 20 C, when determined in accordance with Clause 7, shall not exceed the appropriate value given in Table 2. 6 Flexible conductors (classes 5 and 6) 6.1 Construction a) Flexible conductors (classes 5 and 6) shall consist o

42、f plain or metal-coated annealed copper. b) The wires in each conductor shall have the same nominal diameter. c) The diameter of the wires in each conductor shall not exceed the appropriate maximum value given in Tables 3 or 4. Page 7EN 60228:200582206 4002:CEI 71 6.2 Resistance The resistance of ea

43、ch conductor at 20 C, when determined in accordance with Clause 7, shall not exceed the appropriate maximum value given in Tables 3 or 4. 7 Check of compliance with Clauses 5 and 6 Compliance with the requirements of 5.1.1, 5.2.1, 5.3.1 and 6.1 shall be checked on the completed cable by inspection a

44、nd measurement where practicable. Compliance with the requirements for resistance given in 5.1.2, 5.2.2, 5.3.2 and 6.2 shall be checked by measurement in accordance with Annex A and corrected for temperature by the factors in Table A.1. Table 1 Class 1 solid conductors for single-core and multicore

45、cables 1 2 3 4 Maximum resistance of conductor at 20 C Circular, annealed copper conductors Nominal cross-sectional area Plain Metal-Coated Aluminium and aluminium alloy conductors, circular or shaped cmm2/km /km /km 0,5 36,0 36,7 - 0,75 24,5 24,8 1,0 18,1 18,2 - 1,5 12, 12,2,5 7,41 7,56 - 4 4,61 4,

46、70 6 3,08 3,11 - 10 1,83 1,84 3,08 a16 1,15 1,16 1,91 a25 0,727 b- 1,20 a35 0,524 b- 0,868 a50 0,387 b- 0,641 70 0,268 b- 0,443 95 0,193 b- 0,320 d120 0,153 b- 0,253 d150 0,124 b- 0,206 d185 0,101 b- 0,164 d240 0,0775 b- 0,125 d300 0,0620 b- 0,100 d400 0,0465 b- 0,0778 500 - - 0,0605 630 - 0,0469 80

47、0 - - 0,0367 1 000 - - 0,0291 1 200 - - 0,0247 aAluminium conductors 10 mm2to 35 mm2circular only; see 5.1.1 c). bSee note to 5.1.1 b). cSee note to 5.1.2. dFor single core cables, four sectoral shaped conductors may be assembled into a single circular conductor. The maximum resistance of the assemb

48、led conductor shall be 25 % of that of the individual component conductors. Page 8EN 60228:200582206 4002:CEI 91 Table 2 Class 2 stranded conductors for single-core and multi-core cables 1 2 3 4 5 6 7 8 9 10 Minimum number of wires in the conductor Maximum resistance of conductor at 20C Circular Cir

49、cular compacted Shaped Annealed copper conductor Nominal cross-sectional area Cu Al Cu Al Cu Al Plain wires Metal-coated wires Aluminium or aluminium alloy conductorcmm2/km /km /km 0,5 7 - - - - - 36,0 36,7 - 0,75 7 - - - - - 24,5 24,8 - 1,0 7 - - - - - 18,1 18,2 - 1,5 7 - 6 - - - 12,1 12,2 - 2,5 7 - 6 - - - 7,41 7,56 - 4 7 - 6 - - - 4,61 4,70 - 6 7 - 6 - - - 3,08 3,11 - 10 7 7 6 6 - - 1,83 1,84 3,08 16 7 7 6 6 - - 1,15 1,16 1,91 25 7 7