1、Designation: B 857 02Standard Specification forShaped Wire Compact Concentric-Lay-Stranded AluminumConductors, Coated-Steel Supported (ACSS/TW)1This standard is issued under the fixed designation B 857; the number immediately following the designation indicates the year oforiginal adoption or, in th
2、e case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers shaped wire compactconcentric-lay-stranded aluminum conduct
3、ors, steel supported(ACSS/TW) for use as overhead electrical conductors (seeExplanatory Note 1).1.2 The values stated in inch-pound or SI units are to beregarded separately as standard. Each system shall be usedindependently of the other. Combining values from the twosystems may result in non-confor
4、mance with the specification.For conductor sizes designated by AWG or kcmil sizes, therequirements in SI units are numerically converted from thecorresponding requirements in inch-pound units. For conductorsizes designation by AWG or kcmil, the requirements in SIunits have been numerically converted
5、 from correspondingvalues stated or derived in inch-pound units. For conductorsizes designated by SI units only, the requirements are stated orderived in SI units.1.2.1 For density, resistivity, and temperature, the valuesstated in SI units are to be regarded as standard.1.3 ACSS/TW is designed to i
6、ncrease the aluminum area fora given diameter of conductor by the use of trapezoidal shapedwires (TW). The conductors consist of a central core of roundsteel wire(s) surrounded by two or more layers of trapezoidalaluminum 1350-0 wires. Different strandings of the same sizeof conductor are identified
7、 by type, which is the approximateratio of steel area to aluminum area expressed in percent (seeTable 1, Table 2, and Table 3). For the purpose of thisspecification, the sizes listed in Table 1 and Table 2 aretabulated on the basis of the finished conductor having an areaor outside diameter equal to
8、 that of specified sizes of standardACSR, ACSS, and ACSR/TW so as to facilitate conductorselection.2. Referenced Documents2.1 The following documents of the issue in effect on dateof material purchase form part of this specification to the extentreferenced herein:2.2 ASTM Standards:B 232 Specificati
9、on for Concentric-Lay-Stranded Alumi-num Conductors, Coated Steel Reinforced (ACSR)2B 263 Test Method for Determination of Cross-SectionalArea of Stranded Conductors2B 341/B 341M Specification for Aluminum-Coated (Alu-minized) Steel Core Wire for Aluminum Conductors, SteelReinforced (ACSR/AZ)2B 354
10、Terminology Relating to Uninsulated Metallic Elec-trical Conductors2B 498/B 498M Specification for Zinc-Coated (Galvanized)Steel Core Wire for Aluminum Conductors, Steel Rein-forced (ACSR)2B 500/B 500M Specification for Metallic Coated StrandedSteel Core for Aluminum Conductors, Steel Reinforced(ACS
11、R)2B 502 Specification for Aluminum-Clad Steel Core Wire forAluminum Conductors, Aluminum-Clad Steel Reinforced2B 549 Specification for Concentric-Lay-Stranded Alumi-num Conductors, Aluminum-Clad Steel Reinforced(ACSR/AW)2B 606 Specification for High-Strength Zinc-Coated (Galva-nized) Steel Core Wir
12、e for Aluminum and Aluminum-Alloy Conductors, Steel Reinforced2B 609/B 609M Specification for Aluminum 1350 RoundWire, Annealed and Intermediate Tempers, for ElectricalPurposes2B 779 Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Steel-Reinforced(ACSR/TW)2B 802/B
13、802M Specification for Zinc-5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wire for AluminumConductors, Steel-Reinforced (ACSR)2B 803 Specification for High-Strength Zinc-5 %Aluminum-Mischmetal Alloy-Coated Steel Core Wire forAluminum and Aluminum-Alloy Conductors, Steel-Reinforced2E 29 Practice fo
14、r Using Significant Digits in Test Data toDetermine Conformance with Specifications31This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsibility of Subcommittee B01.07Conductors of Light Metals.Current edition approved April 10, 2002. P
15、ublished May 2002. Originallypublished as B 857 95. Last previous edition B 857 01a.2Annual Book of ASTM Standards, Vol 02.03.3Annual Book of ASTM Standards, Vol 14.02.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.E 527 Practice fo
16、r Numbering Metals and Alloys (UNS)42.3 Other Standards:NBS Handbook 100Copper Wire Tables of the NationalBureau of Standards5Aluminum Association Publication 50 Code Words forOverhead Aluminum Electrical Conductors63. Terminology3.1 Definitions: For definitions of terms relating to conduc-tors, als
17、o refer to definitions found in Specification B 354.3.1.1 aluminizedaluminum coated.3.1.2 aluminum-cladaluminum bonded.3.1.3 galvanizedzinc coated.3.2 Abbreviations:3.2.1 ACSS/TWshaped wire aluminum conductor, steelsupported.3.2.2 ACSS/TW/AZsupported with aluminized steel corewire in accordance with
18、 Specification B 341.3.2.3 ACSS/TW/AWsupported with aluminum-clad corewire in accordance with Specification B 502.3.2.4 ACSS/TW/GAsupported with galvanized steel corewire, coating Class A in accordance with Specification B 498.3.2.5 ACSS/TW/GBsupported with galvanized steel corewire, coating Class B
19、 in accordance with Specification B 498.4Annual Book of ASTM Standards, Vol 01.01.5Available from National Technical Information Services, 5285 Port RoyalRoad, Springfield, VA 22161.6Available from the Aluminum Association Inc., 900 19th Street NW, Suite 300,Washington, DC 20006.TABLE 1 Construction
20、 Requirements for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated SteelSupportedANOTE 1Sized to have area equal to ACSR or ACSS, Class AA.ACSS/TWConductor SizeCode WordBSize and Strandingof ACSS withEqual AreaAluminumStrandingSteel Core StrandingNominalMassACSS/HS/TW,lb/1000
21、ftRated Strength (by type ofsteel core wire)NominalOutsideDiameterin.kcmilCType kcmil StandingNumberofAlumi-numWiresNumberofLayersNumber ofWiresIndividualStrand WireDiameter,in.ACSS/HS/TWACSS/MS/TW,KIPSACSS/GA/TWACSS/MA/TW,KIPSACSS/AW/TW,KIPS477.0 13 Flicker/ACSS/TW 477.0 24/7 18 2 7 0.0940 612 14.2
22、 13.0 12.5 0.78477.0 16 Hawk/ACSS/TW 477.0 26/7 18 2 7 0.1053 655 17.1 15.6 14.9 0.79556.5 13 Parakeet/ACSS/TW 556.5 24/7 18 2 7 0.1015 714 16.6 15.2 14.6 0.84556.5 16 Dove/ACSS/TW 556.5 26/7 20 2 7 0.1138 764 19.9 18.2 17.5 0.85636.0 13 Rook/ACSS/TW 636.0 24/7 18 2 7 0.1085 818 19.0 17.3 16.7 0.896
23、36.0 16 Grosbeak/ACSS/TW 636.0 26/7 20 2 7 0.1216 873 22.4 20.7 19.9 0.91795.0 7 Tern/ACSS/TW 795.0 45/7 17 2 7 0.0886 891 15.2 14.2 13.5 0.96795.0 10 Puffin/ACSS/TW 795.0 22/7 18 2 7 0.1108 974 20.6 18.9 18.3 0.98795.0 13 Condor/ACSS/TW 795.0 54/7 20 2 7 0.1213 1020 23.3 21.7 20.9 0.99795.0 16 Drak
24、e/ACSS/TW 795.0 26/7 20 2 7 0.1360 1091 28.0 25.9 24.4 1.01954.0 5 Phoenix/ACSS/TW 954.0 42/7 30 3 7 0.0837 1028 15.2 14.2 13.6 1.05954.0 7 Rail/ACSS/TW 954.0 45/7 32 3 7 0.0971 1074 18.0 16.7 16.2 1.06954.0 13 Cardinal/ACSS/TW 954.0 54/7 20 2 7 0.1329 1227 28.0 26.0 24.6 1.081033.5 5 Snowbird/ACSS/
25、TW 1033.5 42/7 30 3 7 0.0871 1114 16.4 15.4 14.8 1.091033.5 7 Ortolan/ACSS/TW 1033.5 45/7 32 3 7 0.1010 1163 19.5 18.1 17.6 1.101033.5 13 Curlew/ACSS/TW 1033.5 54/7 21 2 7 0.1383 1326 30.3 28.2 26.1 1.131113.0 5 Avocet/ACSS/TW 1113.0 42/7 30 3 7 0.0904 1199 17.5 16.3 15.9 1.131113.0 7 Bluejay/ACSS/T
26、W 1113.0 45/7 33 3 7 0.1049 1253 21.0 19.5 18.9 1.141113.0 13 Finch/ACSS/TW 1113.0 54/19 38 3 19 0.0862 1427 33.2 30.4 28.8 1.191192.5 5 Oxbird/ACSS/TW 1192.5 42/7 30 3 7 0.0936 1285 18.7 17.5 17.0 1.171192.5 7 Bunting/ACSS/TW 1192.5 45/7 33 3 7 0.1085 1342 22.5 20.9 20.3 1.181192.5 13 Grackle/ACSS/
27、TW 1192.5 54/19 38 3 19 0.0892 1529 35.5 32.6 30.8 1.221272.0 5 Scissortail/ACSS/TW 1272.0 42/7 30 3 7 0.0967 1371 20.0 18.7 18.2 1.201272.0 7 Bittern/ACSS/TW 1272.0 45/7 35 3 7 0.1121 1432 24.0 22.3 21.6 1.221272.0 13 Pheasant/ACSS/TW 1272.0 54/19 39 3 19 0.0921 1630 37.3 34.1 32.8 1.261351.5 7 Dip
28、per/ACSS/TW 1351.5 45/7 35 3 7 0.1155 1521 25.5 23.7 23.0 1.261351.5 13 Martin/ACSS/TW 1351.5 54/19 39 3 19 0.0949 1732 39.6 36.2 34.9 1.301431.0 7 Bobolink/ACSS/TW 1431.0 45/7 36 3 7 0.1189 1611 27.0 25.1 24.3 1.291431.0 13 Plover/ACSS/TW 1431.0 54/19 39 3 19 0.0977 1834 41.9 38.4 36.9 1.341590.0 7
29、 Lapwing/ACSS/TW 1590.0 45/7 36 3 7 0.1253 1790 29.6 27.9 27.0 1.361590.0 13 Falcon/ACSS/TW 1590.0 54/19 42 3 19 0.1030 2038 46.6 42.6 41.1 1.411780.0 8 Chukar/ACSS/TW 1780.0 84/19 37 3 19 0.0874 2061 38.2 35.3 33.6 1.452156.0 8 Bluebird/ACSS/TW 2156.0 84/19 64 4 19 0.0961 2512 45.5 42.1 40.7 1.61AC
30、onversion factors:1 cmil = 5.067E04 mm2(0.0005067 mm3)1 in. = 2.54E+01 mm (25.4 mm)1 lb/1000ft = 1.488 kg/km1 ft = 3.048E01 m (0.3048 m)1 lb = 4.536E01 kg (0.4536 kg)1 lbf = 4.448E03 kN (0.0044448 kN)BCode Words shown in this column are obtained from “Publication 50, Code Words for Overhead Aluminum
31、 Electrical Conductors,” by the Aluminum Association. Theyare provided for information only.CSee Explanatory Note 4.B8570223.2.6 ACSS/TW/GCsupported with galvanized steel corewire, coating Class C in accordance with Specification B 498.3.2.7 ACSS/TW/HSsupported with high-strength galva-nized steel c
32、ore wire in accordance with Specification B 606.3.2.8 ACSS/TW/MAsupported with Zn-5A1-MM coatedsteel core wire, coating Class A in accordance with Specifica-tion B 802.3.2.9 ACSS/TW/MBsupported with Zn-5A1-MM coatedsteel core wire, coating Class B in accordance with Specifica-tion B 802.3.2.10 ACSS/
33、TW/MCsupported with Zn-5A1-MM coatedsteel core wire, coating Class C in accordance with Specifica-tion B 802.TABLE 2 Construction Requirements for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated SteelSupportedANOTE 1Sized to have diameter equal to ACSR or ACSS, Class AA.ACSS/
34、TWConductor SizeCode WordBSize and Strandingof ACSS withEqual DiameterAluminumStrandingSteel Core StrandingNominalMassACSS/HS/TW,lb/1000 ftRated Strength (by type ofsteel core wire)NominalOutsideDiameterin.kcmilCType kcmil StrandingNumberofAlumi-numWiresNumberofLayersNumber ofWiresIndividualStrand W
35、ireDiameter,in.ACSS/HS/TWACSS/MS/TW,KIPSACSS/GA/TWACSS/MA/TW,KIPSACSS/AW/TW,KIPS571.7 13 Mohawk/ACSS/TW 477.0 24/7 18 2 7 0.1030 734 17.1 15.6 15.0 0.85565.3 16 Calumet/ACSS/TW 477.0 26/7 20 2 7 0.1146 776 20.2 18.4 17.7 0.86666.6 13 Mystic/ACSS/TW 556.5 24/7 20 2 7 0.1111 856 19.9 18.2 17.5 0.91664
36、.8 16 Oswego/ACSS/TW 556.5 26/7 20 2 7 0.1244 913 23.4 21.7 20.9 0.93768.2 13 Maumee/ACSS/TW 636.0 24/7 20 2 7 0.1195 987 23.0 21.0 20.2 0.98762.8 16 Wabash/ACSS/TW 636.0 26/7 20 2 7 0.1331 1047 26.8 24.9 23.4 0.99957.2 7 Kettle/ACSS/TW 795.0 45/7 32 3 7 0.0973 1078 18.1 16.8 16.3 1.06946.7 10 Frase
37、r/ACSS/TW 795.0 22/7 35 3 7 0.1154 1140 22.9 21.1 20.3 1.08966.2 13 Columbia/ACSS/TW 795.0 54/7 21 2 7 0.1338 1240 28.3 26.4 24.9 1.09959.6 16 Suwannee/ACSS/TW 795.0 26/7 22 2 7 0.1493 1317 33.1 30.7 28.2 1.111080.0 7 . . . 900.0 45/7 20 2 7 0.1033 1211 20.4 18.9 1.131168.1 5 Cheyenne/ACSS/TW 954.0
38、42/7 30 3 7 0.0926 1259 18.3 17.2 16.7 1.161158.0 7 Genesee/ACSS/TW 954.0 45/7 33 3 7 0.1078 1307 22.1 20.5 19.9 1.171158.4 13 Hudson/ACSS/TW 954.0 54/7 25 2 7 0.1467 1488 33.5 31.1 28.7 1.201272.0 5 Catawba/ACSS/TW 1033.5 42/7 30 3 7 0.0967 1371 20.0 18.7 18.2 1.201257.1 7 Nelson/ACSS/TW 1033.5 45/
39、7 35 3 7 0.1115 1416 23.8 22.1 21.4 1.211233.6 13 Yukon/ACSS/TW 1033.5 54/7 38 3 19 0.0910 1584 36.3 33.2 32.0 1.251372.5 5 Truckee/ACSS/TW 1113.0 42/7 30 3 7 0.1004 1479 21.5 20.2 19.6 1.251359.7 7 Mackenzie/ACSS/TW 1113.0 45/7 36 3 7 0.1159 1531 25.7 23.9 23.1 1.261334.6 13 Thames/ACSS/TW 1113.0 5
40、4/19 39 3 19 0.0944 1711 39.1 35.8 34.5 1.291467.8 5 St. Croix/ACSS/TW 1192.5 42/7 33 3 7 0.1041 1583 23.1 21.6 21.0 1.291455.3 7 Miramichi/ACSS/TW 1192.5 45/7 36 3 7 0.1200 1639 27.1 25.6 24.8 1.301433.6 13 Merrimack/ACSS/TW 1192.5 54/19 39 3 19 0.0978 1838 42.0 38.4 37.0 1.341569.0 5 Platte/ACSS/T
41、W 1272.0 42/7 33 3 7 0.1074 1691 24.6 23.1 22.4 1.331557.4 7 Potomac/ACSS/TW 1272.0 45/7 36 3 7 0.1241 1754 29.0 27.3 26.5 1.351533.3 13 Rio Grande/ACSS/TW 1272.0 54/19 39 3 19 0.1012 1966 45.0 41.2 39.6 1.381657.4 7 Schuylkill/ACSS/TW 1351.5 45/7 36 3 7 0.1280 1866 30.9 29.1 28.2 1.391622.0 13 Peco
42、s/ACSS/TW 1351.5 54/19 39 3 19 0.1064 2105 49.3 45.0 43.3 1.421758.6 7 Pee Dee/ACSS/TW 1431.0 45/7 37 3 7 0.1319 1980 32.8 30.9 29.4 1.431730.6 13 James/ACSS/TW 1431.0 54/19 39 3 19 0.1075 2219 50.8 46.4 44.7 1.471949.6 7 Athabaska/ACSS/TW 1590.0 45/7 42 3 7 0.1392 2197 36.5 34.3 31.7 1.501926.9 13
43、Cumberland/ACSS/TW 1590.0 54/19 42 3 19 0.1133 2469 56.4 51.6 49.7 1.552153.8 8 Powder/ACSS/TW 1780.0 84/19 64 4 19 0.0961 2510 45.5 42.1 40.7 1.602627.3 8 Santee/ACSS/TW 2156.0 84/19 64 4 19 0.1062 3063 55.6 51.3 49.7 1.76AConversion factors:1 cmil = 5.067E04 mm2(0.0005067 mm2)1 in. = 2.54E+01 mm (
44、25.4 mm)1 lb/1000 ft = 1.488 kg/km1 ft = 3.048E01 m (0.3048 m)1 lb = 4.536E01 kg (0.4536 kg)1 lbf = 4.448E03 kN (0.004448 kN)BCode Words shown in this column are obtained from “Publication 50, Code Words for Overhead Aluminum Electrical Conductors,” by the Aluminum Association. Theyare provided for
45、information only.CSee Explanatory Note 4.TABLE 3 Comparison of ACSS/TW With Equivalent Stranding ofACSRAand ACSSBACSS/TW Type NumberCConventional ACSR and ACSS StrandingD5 42/77 45/78 84/1910 22/713 54/713 24/716 26/7AThe equivalent stranding is that stranding of conventional ACSR that has thesame a
46、rea of aluminum and steel as a given ACSS/TW type.BThe equivalent stranding is that stranding of conventional ACSS that has thesame area of aluminum and steel as a given ACSS/TW type.CACSS/TW type number is the approximate ratio of the steel area to thealuminum area in percent.DSee Specifications B
47、232, B 549, and B 856.B8570233.2.11 ACSS/TW/MSsupported with high-strength Zn-5A1-MM coated steel core wire in accordance with Specifica-tion B 803.3.2.12 Zn-5A1-MMzinc-5 % aluminum-mischmetal alloy.4. Ordering Information4.1 Orders for material under this specification shall includethe following in
48、formation:4.1.1 Quantity of each size,4.1.2 Conductor size, kcmil area and diameter,4.1.3 Conductor type and number of wires, aluminum andsteel, (Table 1 and Table 2),4.1.4 Type of steel core wire and class (if applicable) ofcoating (see 5.2),4.1.5 Direction of lay of outer layer of aluminum wires i
49、fother than right-hand (see 7.6),4.1.6 Special tension test, if desired (see 14.3),4.1.7 Package size and type (see 16.1),4.1.8 Special package markings, if required (see 16.4),4.1.9 Heavy wood lagging, if required (see 16.3), and4.1.10 Place of inspection (see Section 15).5. Requirement for Wires5.1 After stranding, the trapezoidal aluminum wires (seeDefinitions B 354) shall conform to the requirements of Speci-fication B 609 except for shape and diameter tolerance require-ments. The tensile strength and elongation requirements oftrapezoidal wires shall be
