1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21071-7 SANS 61089:1991Edition 1 and IEC amdt 1, nat. amdt 1IEC 61089:1991Edition 1 and amdt 1 Any reference to SABS IEC 61089 is deemedto
4、 be a reference to this standard(Government Notice No. 1373 of 8 November 2002)SOUTH AFRICAN NATIONAL STANDARD Round wire concentric lay overhead electrical stranded conductors This national standard is the identical implementation of IEC 61089:1991 and IEC amendment 1, and is adopted with the permi
5、ssion of the International Electrotechnical Commission. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 61089:1991 Edition 1 and IEC amdt 1, nat
6、. amdt 1 IEC 61089:1991 Edition 1 and amdt 1 Table of changes Change No. Date Scope IEC amdt 1 1997 Amended to include aluminium-clad steel wires. Nat. amdt 1 2008 Amended to change the designation from SABS to SANS, with no technical changes. National foreword This South African standard was approv
7、ed by National Committee StanSA TC 66, Electric cables, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in June 2008. This SANS document supersedes SABS IEC 61089:1991 (first edition as modified by IEC amd
8、t 1:1997). NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD610891991AMENDEMENT 1AMENDMENT 11997-05Amendement 1Conducteurs pour lignes ariennes brins circulaires, cbls en couchesconcentriquesAmendment 1Round wire concentric lay overheadelectrical stranded conductorsHPour prix, voir catalogue en vigueur
9、For price, see current catalogueCODE PRIXPRICE CODE IEC 1997 Droits de reproduction rservs Copyright - all rights reservedInternational Electrotechnical Commission 3, rue de Varemb Geneva, SwitzerlandTelefax: +41 22 919 0300 e-mail: inmailiec.ch IEC web site http: /www.iec.chCommission Electrotechni
10、que InternationaleInternational Electrotechnical CommissionSANS 61089:1991This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .61089 Amend. 1 IEC:1997 3 FOREWORDThis amendment has been prepared by IEC technical committee 7: Overhead electricalcond
11、uctors.The text of this amendment is based on the following documents:FDIS Report on voting7/502/FDIS 7/506/RVDFull information on the voting for the approval of this amendment can be found in the report onvoting indicated in the above table.Page 71 ScopeAmend as follows:1.1 This International Stand
12、ard specifies the electrical and mechanical characteristics ofround wire, concentric lay, overhead, electrical and stranded conductors made of combinationsof any of the following metal wires:a) Aluminium wires hard drawn aluminium as per IEC 60889 designated A1*; aluminium alloy type B as per IEC 60
13、104, designated A2*; aluminium alloy type A as per IEC 60104, designated A3*.b) Zinc coated steel wires (as per IEC 60888): regular strength steel, designated S1A or S1B, where A and B are zinc coatingclasses, corresponding respectively to classes 1 and 2; high strength steel, designated S2A or S2B,
14、 extra high strength steel, designated S3A.c) Aluminium-clad steel wires (as per IEC 61232): class 20SA, types A and B, designated respectively SA1A and SA1B; class 27SA, designated as SA2.*The resistivity of these metals is as follows (in increasing order):A1: 28,264 nm (corresponding to 61 % IACS)
15、,A2: 32,530 nm (corresponding to 53 % IACS),A3: 32,840 nm (corresponding to 52,5 % IACS).SANS 61089:1991This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .61089 Amend. 1 IEC:1997 5 1.2 The conductor designations included in this standard are:A1,
16、 A2, A3,A1/S1A, A1/S1B, A1/S2A, A1/S2B, A1/S3A,A2/S1A, A2/S1B, A2/S3A,A3/S1A, A3/S1B, A3/S3A,A1/A2, A1/A3,A1/SA1A, A2/SA1A, A3/SA1A,S1A, S1B, S2A, S3A,SA1A, SA1B, SA2.NOTE Conductors made of the same wire designation are called homogeneous conductors (e.g. A1, A2, S1A,SA2, etc.). Furthermore, whenev
17、er reference is made to steel wires or conductors, these can either bealuminium-clad or zinc-coated (Sx or SAx).2 Normative referencesAdd, to the list, the title of the following standard:IEC 61232: 1993, Aluminium-clad steel wires for electrical purposesPage 93 Designation systemAdd the following p
18、aragraphs at the end of 3.2:Homogeneous conductors made of zinc-coated steel wires are designated S1A, S1B, S2A,S3A.Homogeneous conductors made of aluminium-clad steel wires are designated SA1A, SA1B orSA2.Add the following paragraph at the end of 3.4:When aluminium-clad steel wires SA1A are used in
19、 a composite conductor instead of zinc-coated wires, the designation becomes Ax/SA1A.Add the following paragraphs at the end of 3.5:500-A1/SA1A-54/7: Conductor made of 54 wires of A1 aluminium and 7 wires of aluminium-clad steel class 20SA wires, type A (SA1A). The area of the A1 aluminium wires is
20、equal to484 mm2and 62,8 mm2for the aluminium-clad steel wires which can be found in the tablesof annex D.40-SA1A-19: Conductor made of 19 wires of aluminium-clad steel wires class 20SA, type A(SA1A). The area of aluminium-clad steel wires is 120 mm2which has the same conductivityas 40 mm2 of A1 alum
21、inium wires.40-S1A-19: Conductor made of 19 wires of regular strength steel wires, with a zinc coatingtype A (S1A). The area of steel wires is 271,1 mm2which has the same conductivity as 40mm2of A1 aluminium wires.SANS 61089:1991This s tandard may only be used and printed by approved subscription an
22、d freemailing clients of the SABS .61089 Amend. 1 IEC:1997 7 4 DefinitionsAmend, on page 11, the definition of “steel ratio” as follows:steel ratio: The ratio of steel cross-sectional area to aluminium cross-sectional area given asa percentage.Page 115.1 MaterialAmend as follows:Conductors shall be
23、made up of round aluminium wires, or round steel wires (zinc-coated oraluminium-clad) or their combinations. All wires shall have before stranding the propertiesspecified in IEC 60104, IEC 60888, IEC 60889, and IEC 61232.Page 135.4 StrandingAmend 5.4.4 as follows:5.4.4 The lay ratios for steel wires
24、 (zinc-coated or aluminium-clad) shall be as follows:a) The lay ratio for the 6-wire layer of the 7 and 19-wire steel cores shall be not less than 16nor more than 26.b) The lay ratio for the 12-wire layer of 19-wire steel core shall be not less than 14 nor morethan 22.c) The lay ratio for homogeneou
25、s steel conductors shall not be less than 10 nor more than16 for all layers.Replace the text of 5.4.6 by the following:5.4.6 In a conductor having multiple layers of wires, the lay ratio of any layer shall be notgreater than the lay ratio of the layer immediately beneath it.Amend 5.4.7 as follows:5.
26、4.7 All steel wires shall lie naturally in their position after stranding, and when cut, the wireends shall remain in position or be readily replaced by hand and then remain approximately inposition. This requirement also applies to the outer layer of aluminium wires of a conductor.Although it is de
27、sirable that all steel wires of a steel conductor remain in position after beingcut, it may be difficult to achieve this property for steel conductors with more than 19 wires.SANS 61089:1991This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .6108
28、9 Amend. 1 IEC:1997 9 5.5 JointsAmend 5.5.1 as follows:5.5.1 During stranding, there shall be no joints of any kind made in the zinc-coated oraluminium-clad steel wire or wires.Page 175.7 Conductor strengthAdd, on page 19, the following new text to 5.7.2:The rated tensile strength (RTS) of homogeneo
29、us steel conductors (Sxy or SAx) shall be takenas the sum of RTS of all wires at failure.NOTE RTS of A1/SA1A is calculated with the failure strength of component wires, based on the assumptionthat wires have compatible elongations at rupture.Add, after 5.7.4, the following new subclause:5.8 Conducti
30、vityThe conductivity of composite conductors made of a combination of aluminium and steel wiresis calculated while neglecting the contribution of the conductivity of steel wires.NOTE An exception to this rule can be admitted, following an agreement between concerned parties, in thecase of optical gr
31、ound wires (OPGW) which are currently being studied by technical committee 7.The conductivity of homogeneous conductors with aluminium-clad steel wires (SAx) iscalculated based on the relevant conductivity in IEC 61232.The conductivity of homogeneous zinc-coated steel conductors (Sx) is calculated b
32、ased on anaverage conductivity of 9 % IACS.SANS 61089:1991This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .61089 Amend. 1 IEC:1997 11 Tableau D.19 Donnes pour conducteurs du type S2ATable D.19 Data for type S2A conductorsCodenumriqueSection No
33、mbre defilsDiamtreFils ConducteurMasseliniqueRsistance la tractionRsistanceen courantcontinuCodenumberAreaNumber ofwiresDiameterWire ConductorLinearmassRatedstrengthDCresistancemm2mm mm kg/km kN W/km4 27,1 7 2,22 6,66 213,3 39,3 7,14456,3 42,7 7 2,79 8,36 335,9 60,2 4,536210 67,8 7 3,51 10,53 533,2
34、93,5 2,857812,5 84,7 7 3,93 11,78 666,5 116,9 2,286216 108,4 7 4,44 13,32 853,1 199,7 1,786116 108,4 19 2,70 13,48 857,0 152,9 1,794425 169,4 19 3,37 16,85 1339,1 238,9 1,148440 271,1 19 4,26 21,31 2142,6 374,1 0,717740 271,1 37 3,05 21,38 2148,1 382,3 0,719663 427,0 37 3,83 26,83 3383,2 589,3 0,456
35、9NOTE Les proprits des conducteurs sont bases sur une rsistance en courant continu de 9 % IACS.Conductor properties are based on a d.c. resistance of 9 % IACS.Tableau D.20 Donnes pour conducteurs du type S3ATable D.20 Data for type S3A conductorsCodenumriqueSection Nombre defilsDiametreFils Conducte
36、urMasseliniqueRsistance la tractionRsistanceen courantcontinuCodenumberAreaNumber ofwiresDiameterWire ConductorLinearmassRatedstrengthDCresistancemm2mm mm kg/km kN W/km4 27,1 7 2,22 6,66 213,3 43,9 7,14456,3 42,7 7 2,79 8,36 335,9 67,9 4,536210 67,8 7 3,51 10,53 533,2 103,0 2,857812,5 84,7 7 3,93 11
37、,78 666,5 128,8 2,286216 108,4 7 4,44 13,32 853,1 164,8 1,786116 108,4 19 2,70 13,48 857,0 172,4 1,794425 169,4 19 3,37 16,85 1339,1 262,6 1,148440 271,1 19 4,26 21,31 2142,6 412,1 0,717740 271,1 37 3,05 21,38 2148,1 420,2 0,719663 427,0 37 3,83 26,83 3383,2 649,0 0,4569NOTE Les proprits des conduct
38、eurs sont bases sur une rsistance en courant continu de 9 % IACS.Conductor properties are based on a d.c. resistance of 9 % IACS.SANS 61089:1991This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .61089 Amend. 1 IEC:1997 13 Tableau D.23 Donnes pou
39、r conducteurs du type SA2Table D.23 Data for type SA2 conductorsCodenumriqueSection Nombre defilsDiamtreFils ConducteurMasseliniqueRsistance la tractionRsistanceen courantcontinuCodenumberAreaNumber ofwiresDiameterWire ConductorLinearmassRatedstrengthDCresistancemm2mm mm kg/km kN W/km16 36,2 7 2,56
40、7,69 216,4 39,04 1,789625 56,5 7 3,21 9,62 338,2 61,00 1,145440 90,4 7 4,05 12,2 541,1 97,61 0,715940 90,4 19 2,46 12,3 543,7 97,61 0,719363 142 19 3,09 15,4 856,4 153,73 0,4567100 226 37 2,79 19,5 1362,6 244,02 0,2884125 282 37 3,12 21,8 1703,2 305,02 0,2307160 362 37 3,53 24,7 2180,1 390,43 0,1803
41、200 452 37 3,94 27,6 2725,1 488,03 0,1442200 452 61 3,07 27,6 2729,1 488,03 0,1444SANS 61089:1991This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .61089 Amend. 1 IEC:1997 15 Tableau D.25 Donnes pour conducteurs du type A2/SA1ATable D.25 Data fo
42、r type A2/SA1A conductorsCodenumriqueRapportSA1ASections Nombrede filsDiamtrefilsDiamtre MasseliniqueRsistance la tractionRsistanceen courantcontinuA2 SA1A Total A2 SA1A A2 SA1A Ame Cond.CodenumberRatioSA1AAreas Numberof wiresWire diameter Diameter LinearmassRatedstrengthDCresistanceA2 SA1A Total A2
43、 SA1A A2 SA1A Core Cond.%mm2mm2mm2mm mm mm mm kg/km kN W/km16 16,7 17,6 2,93 20,5 6 1 1,93 1,93 1,93 5,79 67,5 8,70 1,769425 16,7 27,5 4,58 32,0 6 1 2,41 2,41 2,41 7,23 105,4 13,59 1,132440 16,7 43,9 7,32 51,2 6 1 3,05 3,05 3,05 9,15 168,7 21,74 0,707763 16,7 69,2 11,5 80,7 6 1 3,83 3,83 3,83 11,5 2
44、65,6 33,09 0,4494100 16,7 110 18,3 128 6 1 4,83 4,83 4,83 14,5 421,6 50,70 0,2831125 5,6 142 7,87 149 18 1 3,16 3,16 3,16 15,8 441,4 51,21 0,2293125 16,3 137 22,4 160 26 7 2,59 2,02 6,05 16,4 527,2 67,40 0,2279160 5,6 181 10,1 191 18 1 3,58 3,58 3,58 17,9 565,0 64,94 0,1792160 16,3 176 28,6 205 26 7
45、 2,93 2,28 6,85 18,6 674,8 86,27 0,1781200 5,6 227 12,6 239 18 1 4,00 4,00 4,00 20,0 706,2 80,67 0,1433200 16,3 220 35,8 256 26 7 3,28 2,55 7,66 20,8 843,5 107,84 0,1425250 9,8 280 27,5 307 22 7 4,02 2,24 6,71 22,8 952,9 115,53 0,1144250 16,3 275 44,8 320 26 7 3,67 2,85 8,56 23,2 1054,4 134,79 0,114
46、0315 6,9 355 24,6 380 45 7 3,17 2,11 6,34 25,4 1143,9 134,36 0,0912315 16,3 346 56,4 403 26 7 4,12 3,20 9,61 26,1 1328,5 169,84 0,0904400 6,9 451 31,2 483 45 7 3,57 2,38 7,15 28,6 1452,5 170,62 0,0718400 13,0 444 57,5 501 54 7 3,23 3,23 9,70 29,1 1606,8 199,94 0,0715450 6,9 508 35,1 543 45 7 3,79 2,
47、53 7,58 30,3 1634,1 191,94 0,0638450 13,0 499 64,7 564 54 7 3,43 3,43 10,3 30,9 1807,7 223,64 0,0636500 6,9 564 39,0 603 45 7 4,00 2,66 7,99 32,0 1815,7 213,27 0,0574500 13,0 555 71,9 627 54 7 3,62 3,62 10,8 32,6 2008,5 245,62 0,0572560 6,9 632 43,7 676 45 7 4,23 2,82 8,46 33,8 2033,6 238,86 0,05135
48、60 12,7 622 78,8 701 54 19 3,83 2,30 11,5 34,5 2241,0 277,95 0,0511630 6,9 711 49,2 760 45 7 4,49 2,99 8,97 35,9 2287,8 268,72 0,0456630 12,7 700 88,6 788 54 19 4,06 2,44 12,2 36,5 2521,1 312,69 0,0454710 6,9 801 55,4 857 45 7 4,76 3,17 9,52 38,1 2578,3 302,84 0,0405710 12,7 788 99,9 888 54 19 4,31
49、2,59 12,9 38,8 2841,3 352,39 0,0403800 4,3 909 39,3 949 72 7 4,01 2,67 8,02 40,1 2772,7 315,46 0,0360800 8,3 899 74,9 974 84 7 3,69 3,69 11,1 40,6 2982,3 347,72 0,0359800 12,7 888 113 1001 54 19 4,58 2,75 13,7 41,2 3201,5 397,06 0,0358900 4,3 1023 44,2 1067 72 7 4,25 2,84 8,51 42,5 3119,3 354,89 0,0320900 8,3 1012 84,3 1096 84 7 3,92 3,92 11,7 43,1 3355,1 391,18 0,03191000 4,3 1137 49,1 1186 72 7 4,48 2,99 8,97 44,8 3465,9 394,32 0,02881120 4,2 1274 53,8 1
