1、Designation: B 857 09Standard 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 () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers shaped wire compactconcentric-lay-stranded aluminum conducto
3、rs, steel supported(ACSS/TW) for use as overhead electrical conductors (seeExplanatory Note 1).1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered
4、 standard.1.2.1 ExceptionsFor conductor sizes designated by AWGor kcmil sizes, the requirements in SI units are numericallyconverted from the corresponding requirements in inch-poundunits. For conductor sizes designation by AWG or kcmil, therequirements in SI units have been numerically converted fr
5、omcorresponding values stated or derived in inch-pound units. Forconductor sizes designated by SI units only, the requirementsare stated or derived in SI units. For density, resistivity, andtemperature, the values stated in SI units are to be regarded asstandard.1.3 ACSS/TWis designed to increase th
6、e 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 by type,
7、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 that of s
8、pecified 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:2B 232/B 232M Specification
9、 for Concentric-Lay-StrandedAluminum Conductors, Coated-Steel Reinforced (ACSR)B 263 Test Method for Determination of Cross-SectionalArea of Stranded ConductorsB 341/B 341M Specification for Aluminum-Coated (Alu-minized) Steel Core Wire forAluminum Conductors, SteelReinforced (ACSR/AZ)3B 354 Termino
10、logy Relating to Uninsulated Metallic Elec-trical ConductorsB 498/B 498M Specification for Zinc-Coated (Galvanized)Steel Core Wire for Use in Overhead Electrical ConductorsB 500/B 500M Specification for Metallic Coated StrandedSteel Core for Use in Overhead Electrical ConductorsB 502 Specification f
11、orAluminum-Clad Steel CoreWire forAluminum Conductors, Aluminum-Clad Steel ReinforcedB 549 Specification for Concentric-Lay-Stranded Alumi-num Conductors, Aluminum-Clad Steel Reinforced(ACSR/AW)B 606 Specification for High-Strength Zinc-Coated (Galva-nized) Steel Core Wire for Aluminum and Aluminum-
12、Alloy Conductors, Steel ReinforcedB 609/B 609M Specification for Aluminum 1350 RoundWire, Annealed and Intermediate Tempers, for ElectricalPurposesB 779 Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Steel-Reinforced(ACSR/TW)B 802/B 802M Specification for Zinc5 %
13、Aluminum-Mischmetal Alloy-Coated Steel Core Wire for AluminumConductors, Steel Reinforced (ACSR)B 803 Specification for High-Strength Zinc5 %Aluminum-Mischmetal Alloy-Coated Steel Core Wire forUse in Overhead Electrical ConductorsB 856 Specification for Concentric-Lay-Stranded Alumi-num Conductors,
14、Coated Steel Supported (ACSS)E29 Practice for Using Significant Digits in Test Data to1This 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 1, 2009.
15、Published May 2009. Originallyapproved in 1995. Last previous edition approved in 2002 as B 857 02.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Doc
16、ument Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Determine Conformance with SpecificationsE 527 Pract
17、ice for Numbering Metals and Alloys in theUnified Numbering System (UNS)2.3 Other Standards:NBS Handbook 100Copper Wire Tables of the NationalBureau of Standards4Aluminum Association Publication 50 Code Words forOverhead Aluminum Electrical Conductors53. Terminology3.1 Definitions: For definitions o
18、f terms relating to conduc-tors, also 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 aluminiz
19、ed steel corewire in accordance with Specification B 341/B 341M.4Available from National Technical Information Service (NTIS), 5285 PortRoyal Rd., Springfield, VA 22161, http:/www.ntis.gov.5Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600,Arlington, VA 22209, http:/www.aluminu
20、m.org.TABLE 1 Construction Requirements for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated SteelSupportedANOTE 1Sized to have area equal to ACSR or ACSS, Class AA.ACSS/TWConductorSizeCode WordBSize and Stranding ofACSS with Equal AreaAluminumStrandingSteel Core Strand-ingNom
21、inal MassACSS/HS/TW,lb/1000 ftRated Strength (by type ofsteel core wire)Nominal Out-sideDiameterin.kc-milCType kcmil StandingNumberofAluminumWiresNumberofLayersNumberofWiresIndividualStrandWire Di-ameter,in.ACSS/HS/TWACSS/MS/TW,KIPSACSS/GA/TWACSS/MA/TW,KIPSACSS/AW/TW,KIPS336.4 23 Oriole/ACSS/TW 336.
22、4 30/7 17 2 7 0.1059 526 16.3 14.8 14.2 0.693477.0 13 Flicker/ACSS/TW 477.0 24/7 18 2 7 0.0940 612 14.2 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 0.79477.0 23 Hen/ACSS/TW 477.0 30/7 17 2 7 0.1261 746 22.7 21.0 20.1 0.825556.5 13 Parakeet/ACSS/TW 556.5 24/7 18 2
23、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 0.89636.0 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
24、 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 Drake/ACSS/TW 795.0 26/7 20 2 7 0.1360 1091 28.0 25.9 24.4 1.01795.0 23 Mallard/ACSS/TW 795.0 30/19 22 2 19 0.0977 1234 37.9 34.3 3
25、2.9 1.046954.0 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/TW 1033.5 42/7 30 3 7 0.0871 1114 16.4 15.4 14.8 1
26、.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/TW 1113.0 45/7 33 3 7 0.1049 1253 21.0 19.5 18.9 1.
27、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/TW 1192.5 54/19 38 3 19 0.0892 1529 35.5 32.6 30.8
28、 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 Dipper/ACSS/TW 1351.5 45/7 35 3 7 0.1155 1521 25.5 23
29、.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 Lapwing/ACSS/TW 1590.0 45/7 36 3 7 0.1253 1790 29
30、.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 1.61AConversion factors:1 cmil = 5.067E04 mm2(0.0005067
31、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 Electrical Conductors,” by the Aluminum Associati
32、on. Theyare provided for information only.CSee Explanatory Note 4.B8570923.2.3 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/B 498M.3.2.5 ACSS/TW/
33、GBsupported with galvanized steel corewire, coating Class B in accordance with Specification B 498/B 498M.3.2.6 ACSS/TW/GCsupported with galvanized steel corewire, coating Class C in accordance with Specification B 498/B 498M.3.2.7 ACSS/TW/HSsupported with high-strength galva-nized steel core wire i
34、n 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/TW/MCsuppo
35、rted with Zn-5A1-MM coatedsteel core wire, coating Class C in accordance with Specifica-tion B 802.3.2.11 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.TABLE 2 Construction Requiremen
36、ts for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated SteelSupportedANOTE 1Sized to have diameter equal to ACSR or ACSS, Class AA.ACSS/TWConductor SizeCode WordBSize and Strandingof ACSS withEqual DiameterAluminumStrandingSteel Core StrandingNominalMassACSS/HS/TW,lb/1000 ftR
37、ated Strength (by type ofsteel core wire)NominalOutsideDiameterin.kcmilCType kcmil StrandingNumberofAlumi-numWiresNumberofLayersNumber ofWiresIndividualStrand WireDiameter,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
38、.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 0.91664.8 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 0.9
39、8762.8 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 Fraser/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
40、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 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/T
41、W 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 45/7 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
42、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 54/19 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/
43、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/TW 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
44、 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 Pecos/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 1.43173
45、0.6 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 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
46、.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 (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 sho
47、wn in this column are obtained from “Publication 50, Code Words for Overhead Aluminum Electrical Conductors,” by the Aluminum Association. Theyare provided for information only.CSee Explanatory Note 4.B8570934. Ordering Information4.1 Orders for material under this specification shall includethe fol
48、lowing information: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 aluminu
49、m wires ifother 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
