1、Designation: B857 112Standard Specification forShaped Wire Compact Concentric-Lay-Stranded AluminumConductors, Coated-Steel Supported (ACSS/TW)1This standard is issued under the fixed designation B857; the number immediately following the designation indicates the year oforiginal adoption or, in the
2、 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.1NOTESections 8.2.9 and 8.2.10 were editorially updated in February 2013.2NOTETable 1, Table 2, and
3、 section 9.3 were editorially updated in February 2013.1. Scope1.1 This specification covers shaped wire compactconcentric-lay-stranded aluminum conductors, 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
4、regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.2.1 ExceptionsFor conductor sizes designated by AWGor kcmil sizes, the requirements in SI units are numericallyconverted from the corre
5、sponding requirements in inch-poundunits. For conductor sizes designated by SI units only, therequirements are stated or derived in SI units. For density,resistivity, and temperature, the values stated in SI units are tobe regarded as standard.1.3 ACSS/TW is designed to increase the aluminum area fo
6、ra given diameter of conductor by the use of trapezoidal shapedwires (TW), or to reduce the diameter for a given area ofaluminum. 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 size
7、of conductor are identified 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 areao
8、r outside diameter equal to 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
9、Standards:2B263 Test Method for Determination of Cross-SectionalArea of Stranded ConductorsB354 Terminology Relating to Uninsulated Metallic Electri-cal ConductorsB498/B498M Specification for Zinc-Coated (Galvanized)Steel Core Wire for Use in Overhead Electrical Conduc-torsB500/B500M Specification f
10、or Metallic Coated or Alumi-num Clad Stranded Steel Core for Use in OverheadElectrical ConductorsB502 Specification for Aluminum-Clad Steel Core Wire forUse in Overhead Electrical Aluminum ConductorsB549 Specification for Concentric-Lay-Stranded AluminumConductors, Aluminum-Clad Steel Reinforced for
11、 Use inOverhead Electrical ConductorsB606 Specification for High-Strength Zinc-Coated (Galva-nized) Steel Core Wire for Aluminum and Aluminum-Alloy Conductors, Steel ReinforcedB609/B609M Specification for Aluminum 1350 RoundWire, Annealed and Intermediate Tempers, for ElectricalPurposesB802/B802M Sp
12、ecification for Zinc5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wire for AluminumConductors, Steel Reinforced (ACSR)B803 Specification for High-Strength Zinc5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use inOverhead Electrical ConductorsB856 Specification for Concentric-Lay-Stranded
13、 AluminumConductors, Coated Steel Supported (ACSS)1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsibility of Subcommittee B01.07 onConductors of Light Metals.Current edition approved April 1, 2011. Published July 2011. Originallyap
14、proved in 1995. Last previous edition approved in 2009 as B857 09. DOI:10.1520/B0857-11E02.2For 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 Document Su
15、mmary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1TABLE1ConstructionRequirementsforShapedWireCompactConcentric-Lay-StrandedAluminumConductors,CoatedSteelSupportedANOTE1Sizedtohaveareaequalaluminumcross-sect
16、ionalareatoanACSRorACSS,ClassAAconductor.ACSS/TWConductorSizeCodeWordBSizeandStrandingofACSSwithEqualAluminumCross-SectionalAreaAluminum StrandingSteelCoreStrandingNominalMassACSS/TWACSS/TWConductorRatedStrength(bytypeofsteelcorewire)Nominal OutsideDiameterkcmilCTypekcmilStrandingNumberofAluminumWir
17、esNumberofLayersNumberofWiresIndividualStrandWireDiameter,in.GAXCorelb/1000ftGA2/MA2KIPSGA3/MA3 KIPSGA4/MA4 KIPSGA5/MA5 KIPSAW2KIPSAW3KIPSin.266.816Partridge/ACSS/TW266.826/718270.07883498.909.7010.811.48.408.900.58336.423Oriole/ACSS/TW336.430/717270.105952614.816.318.219.114.214.80.69477.013Flicker
18、/ACSS/TW477.024/718270.094061213.014.215.716.412.513.00.78477.016Hawk/ACSS/TW477.026/718270.105365515.617.118.919.814.915.60.79477.023Hen/ACSS/TW477.030/717270.126174621.022.725.426.720.120.50.83556.513Parakeet/ACSS/TW556.524/718270.101571415.216.618.319.114.615.20.84556.516Dove/ACSS/TW556.526/72027
19、0.113876418.219.922.123.117.518.20.85636.013Rook/ACSS/TW636.024/718270.108581817.319.020.921.916.717.30.89636.016Grosbeak/ACSS/TW636.026/720270.121687320.722.424.826.019.920.30.91795.07Tern/ACSS/TW795.045/717270.088689114.215.216.617.513.514.20.96795.010Puffin/ACSS/TW795.022/718270.110897418.920.622
20、.623.718.318.90.98795.013Condor/ACSS/TW795.054/720270.1213102021.723.325.726.920.921.30.99795.016Drake/ACSS/TW795.026/720270.1360109125.928.031.032.524.425.41.01795.023Mallard/ACSS/TW795.030/19222190.0977123434.337.942.144.332.934.31.05954.05Phoenix/ACSS/TW954.042/730370.0837102814.215.216.317.113.6
21、14.21.05954.07Rail/ACSS/TW954.045/732370.0971107416.718.019.620.416.216.71.06954.013Cardinal/ACSS/TW954.054/720270.1329122726.028.030.932.324.625.51.081033.55Snowbird/ACSS/TW1033.542/730370.0871111415.416.417.718.514.815.41.091033.57Ortolan/ACSS/TW1033.545/732370.1010116318.119.521.222.017.618.11.10
22、1033.513Curlew/ACSS/TW1033.554/721270.1383132628.230.333.435.026.127.71.131113.05Avocet/ACSS/TW1113.042/730370.0904119916.317.518.819.515.916.31.131113.07Bluejay/ACSS/TW1113.045/733370.1049125319.521.022.923.818.919.51.141113.013Finch/ACSS/TW1113.054/19383190.0862142730.433.236.538.728.830.41.191192
23、.55Oxbird/ACSS/TW1192.542/730370.0936128517.518.720.220.917.017.51.171192.57Bunting/ACSS/TW1192.545/733370.1085134220.922.524.525.520.320.91.181192.513Grackle/ACSS/TW1192.554/19383190.0892152932.635.539.141.530.832.61.221272.05Scissortail/ACSS/TW1272.042/730370.0967137118.720.021.522.318.218.71.2012
24、72.07Bittern/ACSS/TW1272.045/735370.1121143222.324.026.127.221.622.31.221272.013Pheasant/ACSS/TW1272.054/19393190.0921163034.137.341.143.032.834.11.261351.57Dipper/ACSS/TW1351.545/735370.1155152123.725.527.728.823.023.71.261351.513Martin/ACSS/TW1351.554/19393190.0949173236.239.643.645.634.936.21.301
25、431.07Bobolink/ACSS/TW1431.045/736370.1189161125.127.029.430.524.325.11.291431.013Plover/ACSS/TW1431.054/19393190.0977183438.441.946.248.336.938.41.341590.07Lapwing/ACSS/TW1590.045/736370.1253179027.929.632.233.527.027.51.361590.013Falcon/ACSS/TW1590.054/19423190.1030203842.646.651.353.741.142.61.41
26、1780.08Chukar/ACSS/TW1780.084/19373190.0874206135.338.241.643.933.635.31.452156.08Bluebird/ACSS/TW2156.084/19644190.0961251242.145.549.651.740.742.11.61Columneditoriallycorrected.AConversionfactors:1cmil=5.067E04mm2(0.0005067mm3)1in.=2.54E+01mm(25.4mm)1lb/1000ft=1.488kg/km1ft=3.048E01m(0.3048m)1lb=4
27、.536E01kg(0.4536kg)1lbf=4.448E03kN(0.0044448kN)BCodeWordsshowninthiscolumnareobtainedfrom“Publication50,CodeWordsforOverheadAluminumElectricalConductors,”bytheAluminumAssociation.Theyareprovidedforinformationonly.CSeeExplanatoryNote4.B857 1122TABLE2ConstructionRequirementsforShapedWireCompactConcent
28、ric-Lay-StrandedAluminumConductors,CoatedSteelSupportedANOTE1SizedtohaveadiameterequaltoaconcentricroundACSRorACSS,ClassAAconductor.ACSS/TWConductorSizeCodeWordBSizeandStrandingofACSSwithEqualOverallConductorDiameterAluminum StrandingSteelCoreStrandingNominalMassACSS/TWACSS/TWConductorRatedStrength(
29、bytypeofsteelcorewire)Nominal OutsideDiameterkcmilCTypekcmilStrandingNumberofAluminumWiresNumberofLayersNumberofWiresIndividualStrandWireDiameter,in.GAXCorelb/1000ftGA2/MA2KIPSGA3/MA3KIPSGA4/MA4KIPSGA5/MA5KIPSAW2KIPSAW3KIPSin.571.713Mohawk/ACSS/TW477.024/718270.103073415.617.118.819.715.015.60.85565
30、.316Calumet/ACSS/TW477.026/720270.114677618.420.222.423.517.718.40.86666.613Mystic/ACSS/TW556.524/720270.111185618.219.921.922.917.518.20.91664.816Oswego/ACSS/TW556.526/720270.124491321.723.426.027.220.921.30.93768.213Maumee/ACSS/TW636.024/720270.119598721.023.025.326.520.221.00.98762.816Wabash/ACSS
31、/TW636.026/720270.1331104724.926.829.731.223.424.40.99957.27Kettle/ACSS/TW795.045/732370.0973107816.818.119.720.416.316.81.06946.710Fraser/ACSS/TW795.022/735370.1154114021.122.925.126.220.321.11.08966.213Columbia/ACSS/TW795.054/721270.1338124026.428.331.332.824.925.91.09959.616Suwannee/ACSS/TW795.02
32、6/722270.1493131730.733.136.838.628.230.01.111080.07.900.045/720270.1033121118.920.422.223.118.418.91.131168.15Cheyenne/ACSS/TW954.042/730370.0926125917.218.319.720.416.717.11.161158.07Genesee/ACSS/TW954.045/733370.1078130720.522.124.025.019.920.51.171158.413Hudson/ACSS/TW954.054/725270.1467148831.1
33、33.537.038.828.730.51.201272.05Catawba/ACSS/TW1033.542/730370.0967137118.720.021.522.318.218.71.201257.17Nelson/ACSS/TW1033.545/735370.1115141622.123.825.826.921.422.11.211233.613Yukon/ACSS/TW1033.554/7383190.0910158433.236.340.041.932.033.21.251372.55Truckee/ACSS/TW1113.042/730370.1004147920.221.52
34、3.224.019.620.21.251359.77Mackenzie/ACSS/TW1113.045/736370.1159153123.925.727.929.023.123.81.261334.613Thames/ACSS/TW1113.054/19393190.0944171135.839.143.145.134.535.81.291467.85St.Croix/ACSS/TW1192.542/733370.1041158321.623.124.925.821.021.61.291455.37Miramichi/ACSS/TW1192.545/736370.1200163925.627
35、.129.530.724.825.21.301433.613Merrimack/ACSS/TW1192.554/19393190.0978183838.442.046.348.437.038.41.341569.05Platte/ACSS/TW1272.042/733370.1074169123.124.626.527.522.423.11.331557.47Potomac/ACSS/TW1272.045/736370.1241175427.329.031.632.826.526.91.351533.313RioGrande/ACSS/TW1272.054/19393190.101219664
36、1.245.049.651.939.641.21.381657.47Schuylkill/ACSS/TW1351.545/736370.1280186629.130.933.634.928.228.61.391622.013Pecos/ACSS/TW1351.554/19393190.1064210545.049.354.356.943.345.01.421758.67PeeDee/ACSS/TW1431.045/737370.1319198030.932.835.737.129.430.41.431730.613James/ACSS/TW1431.054/19393190.107522194
37、6.450.855.958.544.746.41.471949.67Athabaska/ACSS/TW1590.045/742370.1392219734.336.539.340.831.733.51.501926.913Cumberland/ACSS/TW1590.054/19423190.1133246951.656.462.265.049.751.61.552153.88Powder/ACSS/TW1780.084/19644190.0961251042.145.549.651.740.742.11.602627.38Santee/ACSS/TW2156.084/19644190.106
38、2306351.355.660.663.149.751.31.76Columneditoriallycorrected.AConversionfactors:1cmil=5.067E04mm2(0.0005067mm2)1in.=2.54E+01mm(25.4mm)1lb/1000ft=1.488kg/km1ft=3.048E01m(0.3048m)1lb=4.536E01kg(0.4536kg)1lbf=4.448E03kN(0.004448kN)BCodeWordsshowninthiscolumnareobtainedfrom“Publication50,CodeWordsforOver
39、headAluminumElectricalConductors,”bytheAluminumAssociation.Theyareprovidedforinformationonly.CSeeExplanatoryNote4.B857 1123B957 Specification for Extra-High-Strength and Ultra-High-Strength Zinc-Coated (Galvanized) Steel Core Wire forOverhead Electrical ConductorsB958 Specification for Extra-High-St
40、rength and Ultra-High-Strength Class A Zinc5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead ElectricalConductorsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE527 Practice for Numbering Metals and Alloys in theUnified Numberi
41、ng System (UNS)2.3 Other Standards:NBS Handbook 100Copper Wire Tables of the NationalBureau of Standards3Aluminum Association Publication 50 Code Words forOverhead Aluminum Electrical Conductors43. Terminology3.1 DefinitionsFor definitions of terms relating toconductors, also refer to definitions fo
42、und in SpecificationB354.3.2 Definitions of Terms Specific to This Standard:3.2.1 aluminum-cladaluminum bonded.3.2.2 galvanizedzinc coated.3.2.3 Zn-5A1-MMzinc-5 % aluminum-mischmetal alloycoated.3.3 Abbreviations:3.3.1 ACSS/TWshaped wire aluminum conductor, steelsupported.3.3.2 ACSS/TW/AW2supported
43、with regular strengthaluminum-clad core wires in accordance with SpecificationB502.3.3.3 ACSS/TW/AW3supported with high-strengthaluminum-clad core wires in accordance with SpecificationB502.3.3.4 ACSS/TW/GA2ACSS using Class A zinc-coatedregular strength steel core wires in accordance with Specifica-
44、tion B498/B498M.3.3.5 ACSS/TW/GA3ACSS using Class A zinc-coatedhigh-strength steel core wires in accordance with SpecificationB606.3.3.6 ACSS/TW/GA4ACSS using Class A zinc-coatedextra-high-strength steel core wires in accordance with Speci-fication B957.3.3.7 ACSS/TW/GA5ACSS using Class A zinc-coate
45、dultra-high-strength steel core wires in accordance with Speci-fication B957.3.3.8 ACSS/TW/GC2ACSS using Class C zinc-coatedregular strength steel core wires in accordance with Specifica-tion B498/B498M.3.3.9 ACSS/TW/MA2ACSS using Class A Zn-5A1-MMcoated regular strength steel core wires in accordan
46、ce withSpecification B802/B802M.3.3.10 ACSS/TW/MA3ACSS using Class A Zn-5A1-MMcoated high strength steel core wires in accordance withSpecification B803.3.3.11 ACSS/TW/MA4ACSS using Class A Zn-5A1-MMcoated extra-high-strength steel core wires in accordance withSpecification B958.3.3.12 ACSS/TW/MA5AC
47、SS using Class A Zn-5A1-MMcoated ultra-high-strength steel core wires in accordance withSpecification B958.4. Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 Quantity of each size,4.1.2 Conductor size, kcmil area and diameter,4.1.3 Co
48、nductor 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 ifother than right-hand (see 7.7),4.1.6 Special tension test, if desired (see 14.3),4.1.7 Pac
49、kage 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 B354) shall conform to the requirements of OTemper in accordance with Specification B609/B609M exceptfor shape and diameter tolerance requirements. The tensilestrength and elongation requirements of trapezoidal wires shallbe the same as for round wires of equal area.
