1、Designation: B856 12B856 13Standard Specification forConcentric-Lay-Stranded Aluminum Conductors, CoatedSteel Supported (ACSS)1This standard is issued under the fixed designation B856; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision
2、, 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 round wire concentric-lay-stranded aluminum conductors, steel supported (ACSS)
3、 for use asoverhead electrical conductors (see Explanatory Note 1).1.2 The values stated in inch-pound or SI units are to be regarded separately as standard. Each system shall be usedindependently of the other. Combining values from the two systems may result in nonconformance with the specification
4、. Forconductor sizes designated byAWG or kcmil sizes, the requirements in SI units are numerically converted from the correspondingrequirements in inch-pound units. For conductor sizes designation by AWG or kcmil, the requirements in SI units have beennumerically converted from corresponding values
5、stated or derived in inch-pound units. For conductor sizes designated by SI unitsonly, the requirements are stated or derived in SI units.1.2.1 For density, resistivity and temperature, the values stated in SI units are to be regarded as standard.2. Referenced Documents2.1 The following documents of
6、 the issue in effect on date of material purchase form part of this specification to the extentreferenced herein:2.2 ASTM Standards:2B263 Test Method for Determination of Cross-Sectional Area of Stranded ConductorsB354 Terminology Relating to Uninsulated Metallic Electrical ConductorsB498/B498M Spec
7、ification for Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical ConductorsB500/B500M Specification for Metallic Coated or Aluminum Clad Stranded Steel Core for Use in Overhead ElectricalConductorsB502 Specification for Aluminum-Clad Steel Core Wire for Use in Overhead Electrica
8、l Aluminum ConductorsB549 Specification for Concentric-Lay-StrandedAluminum Conductors,Aluminum-Clad Steel Reinforced for Use in OverheadElectrical ConductorsB606 Specification for High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Aluminum and Aluminum-AlloyConductors, Steel ReinforcedB609/
9、B609M Specification for Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical PurposesB802/B802M Specification for Zinc5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum Conductors,Steel Reinforced (ACSR)B803 Specification for High-Strength Zinc5 % Aluminum-Misch
10、metal Alloy-Coated Steel Core Wire for Use in OverheadElectrical ConductorsB857 Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Supported(ACSS/TW)B957 Specification for Extra-High-Strength and Ultra-High-Strength Zinc-Coated (Galvanized) Steel Core Wir
11、e for OverheadElectrical ConductorsB958 Specification for Extra-High-Strength and Ultra-High-Strength Class A Zinc5% Aluminum-Mischmetal Alloy-CoatedSteel Core Wire for Use in Overhead Electrical Conductors1 This specification is under the jurisdiction of ASTM Committee B01 on Electrical Conductors
12、and is the direct responsibility of Subcommittee B01.07 on Conductorsof Light Metals.Current edition approved June 1, 2012April 1, 2013. Published October 2012May 2013. Originally approved in 1995. Last previous edition approved in 20112012 asB856-11. DOI: 10.1520/B0856-12. 12. DOI: 10.1520/B0856-13
13、.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only t
14、o provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versiono
15、f the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1E29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE527 Prac
16、tice for Numbering Metals and Alloys in the Unified Numbering System (UNS)2.3 Other Standards:Aluminum Association Publication 50 Code words for Overhead Aluminum Electrical Conductors3NBS Handbook 100Copper Wire Tables of the National Bureau of Standards43. Terminology3.1 For definitions of terms r
17、elating to conductors refer to definitions found in Specification B354.3.2 Definitions:3.2.1 aluminum-cladaluminum bonded.3.2.2 galvanizedzinc coated.3.2.3 Zn-5A1-MMZinc-5% Aluminum-Mischmetal Alloy (Zn-5A1-MM) coated.3.3 Abbreviations:3.3.1 ACSSaluminum conductor, steel supported.3.3.2 ACSS/AW2supp
18、orted with regular strength aluminum-clad core wire in accordance with Specification B502.3.3.3 ACSS/AW3supported with high strength aluminum-clad core wire in accordance with Specification B502.3.3.4 ACSS/GA2supported with regular strength galvanized steel core wire, coating Class A in accordance w
19、ith SpecificationB498/B498M.3.3.5 ACSS/GC2supported with regular strength galvanized steel core wire, coating Class C in accordance with SpecificationB498/B498M.3.3.6 ACSS/GA3supported with high-strength galvanized steel core wire in accordance with Specification B606.3.3.7 ACSS/GA4supported with ex
20、tra-high strength zinc ClassAcoated steel core wire in accordance with Specification B957.3.3.8 ACSS/GA5supported with ultra-high strength zinc ClassAcoated steel core wire in accordance with Specification B957.3.3.9 ACSS/MA2supported with regular strength Zn-5A1-MM coated steel core wire, coating C
21、lass A in accordance withSpecification B802/B802M.3.3.10 ACSS/MA3supported with high-strength Zn-5A1-MM coated steel core wire in accordance with Specification B803.3.3.11 ACSS/MA4supported with extra-high strength Zinc-5%Aluminum-MischmetalAlloy (Zn-5A1-MM) Coated steel corewire in accordance with
22、Specification B958.3.3.12 ACSS/MA5supported with ultra-high strength Zinc-5%Aluminum-MischmetalAlloy (Zn-5A1-MM) Coated steel corewire in accordance with Specification B958.4. Ordering Information4.1 Orders for material under this specification shall include the following information:4.1.1 Quantity
23、of each size, stranding, and class,4.1.2 Conductor size, circular-mil area or AWG, and diameter (see Section 9 and Table 1),4.1.3 Number of wires, aluminum and steel,4.1.4 Type of steel core wire and class (if applicable) of coating (see 5.2),4.1.5 Direction of lay of outer layer of aluminum wires i
24、f other than right hand (see 7.3),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
25、.1 After stranding, the round aluminum wires shall conform to the requirements of Specification B609/B609M for 1350-0temper, except for elongation requirements. The elongation shall not be less than 20 % after stranding.5.2 Before stranding, the steel core wire shall meet the requirements of Specifi
26、cation B498/B498M, B606, B802/B802M, B803,B957, or B958, whichever is applicable.5.3 The stranded steel core shall meet the requirements of Specification B500/B500M as applicable.3 Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600, Arlington, VA 22209, http:/www.aluminum.org.4
27、Available from National Technical Information Service (NTIS), 5285 Port Royal Rd., Springfield, VA 22161,5301 Shawnee Rd., Alexandria, VA 22312,http:/www.ntis.gov.B856 132TABLE 1 Construction Requirements of Aluminum Conductors, Steel Supported (ACSS)ACSS Conductor Aluminum Wires Steel WiresNominalM
28、assGA(X)orMA(X)(lb/1000ft)NominalOutsideDiameter(in.)Rated StrengthB(by type and coating ofsteel core wire)Size(kcmil) Stranding CodewordA Class Number Diameter(in.) Layers NumberDiameter(in.) LayersGA2orMA2(kips)GA3orMA3(kips)AW2(kips)2312.0 76/19 Thrasher/ACSSAA 76 0.1744 4 19 0.0814 2 2523 1.802
29、35.6 38.1 34.12167.0 72/7 Kiwi/ACSSAA 72 0.1735 4 7 0.1157 1 2301 1.735 29.0 30.8 28.22156.0 84/19 Bluebird/ACSSAA 84 0.1602 4 19 0.0961 2 2508 1.762 42.1 45.5 40.71780.0 84/19 Chukar/ACSSAA 84 0.1456 4 19 0.0874 2 2072 1.602 35.4 38.2 33.61590.0 54/19 Falcon/ACSSAA 54 0.1716 3 19 0.1030 2 2042 1.54
30、5 42.6 46.6 41.11590.0 45/7 Lapwing/ACSSAA 45 0.1880 3 7 0.1253 1 1790 1.504 27.9 29.6 27.01510.5 54/19 Parrot/ACSSAA 54 0.1672 3 19 0.1003 2 1938 1.505 40.4 44.2 38.91510.5 45/7 Nuthatch/ACSSAA 45 0.1832 3 7 0.1221 1 1700 1.466 26.5 28.1 25.71431.0 54/19 Plover/ACSSAA 54 0.1628 3 19 0.0977 2 1838 1
31、.465 38.4 41.9 36.91431.0 45/7 Bobolink/ACSSAA 45 0.1783 3 7 0.1189 1 1611 1.427 25.1 27.0 24.31351.0 54/19 Martin/ACSSAA 54 0.1582 3 19 0.0949 2 1735 1.424 36.2 39.6 34.91351.0 45/7 Dipper/ACSSAA 45 0.1733 3 7 0.1155 1 1521 1.386 23.7 25.5 23.01272.0 54/19 Pheasant/ACSSAA 54 0.1535 3 19 0.0921 2 16
32、34 1.382 34.1 37.3 32.81272.0 45/7 Bittern/ACSSAA 45 0.1681 3 7 0.1121 1 1432 1.345 22.3 24.0 21.61192.5 54/19 Grackle/ACSSAA 54 0.1486 3 19 0.0892 2 1531 1.338 32.6 35.5 30.81192.5 45/7 Bunting/ACSSAA 45 0.1628 3 7 0.1085 1 1342 1.302 21.4 23.5 20.81113.0 54/19 Finch/ACSS AA 54 0.1436 3 19 0.0862 2
33、 1430 1.293 30.4 33.2 28.81113.0 45/7 Bluejay/ACSSAA 45 0.1573 3 7 0.1049 1 1254 1.259 19.5 21.1 18.91033.5 54/7 Curlew/ACSSAA 54 0.1383 3 7 0.1383 1 1329 1.245 28.2 30.3 26.11033.5 45/7 Ortolan/ACSSAA 45 0.1515 3 7 0.1010 1 1163 1.212 18.1 19.5 17.6954.0 54/7 Cardinal/ACSSAA 54 0.1329 3 7 0.1329 1
34、1227 1.196 26.0 28.0 24.6954.0 45/7 Rail/ACSSAA 45 0.1456 3 7 0.0971 1 1074 1.165 16.7 18.0 16.2900.0 54/7 Canary/ACSSAA 54 0.1291 3 7 0.1291 1 1158 1.162 24.6 26.4 23.2900.0 45/7 Ruddy/ACSSAA 45 0.1414 3 7 0.0943 1 1013 1.131 15.8 17.0 15.3795.0 30/19 Mallard/ACSSAA 30 0.1628 2 19 0.0977 2 1234 1.1
35、40 34.3 37.9 32.9795.0 54/7 Condor/ACSSAA 54 0.1213 3 7 0.1213 1 1022 1.092 21.7 23.3 20.9B856133TABLE 1 ContinuedACSS Conductor Aluminum Wires Steel WiresNominalMassGA(X)orMA(X)(lb/1000ft)NominalOutsideDiameter(in.)Rated StrengthB(by type and coating ofsteel core wire)Size(kcmil) Stranding Codeword
36、A Class Number Diameter(in.) Layers NumberDiameter(in.) LayersGA2orMA2(kips)GA3orMA3(kips)AW2(kips)795.0 45/7 Tern/ACSSAA 45 0.1329 3 7 0.0886 1 895.0 1.063 14.2 15.2 13.5795.0 26/7 Drake/ACSSAA 26 0.1749 2 7 0.1360 1 1093 1.108 25.9 28.0 24.4795.0 24/7 Cuckoo/ACSSAA 24 0.1820 2 7 0.1213 1 1023 1.09
37、2 21.7 23.3 20.9715.5 30/19 Redwing/ACSSAA 30 0.1544 2 19 0.0926 2 1109 1.081 30.8 34.0 29.5715.5 26/7 Starling/ACSSAA 26 0.1659 2 7 0.1290 1 983.7 1.051 23.3 25.2 22.0715.5 24/7 Stilt/ACSSAA 24 0.1727 2 7 0.1151 1 921.0 1.036 19.5 21.3 18.8666.6 26/7 Gannet/ACSSAA 26 0.1601 2 7 0.1245 1 916.2 1.014
38、 21.7 23.4 20.9666.6 24/7 Flamingo/ACSSAA 24 0.1667 2 7 0.1111 1 857.9 1.000 18.2 19.9 17.5636.0 30/19 Egret/ACSS AA 30 0.1456 2 19 0.0874 2 987.2 1.019 28.0 30.9 26.3636.0 30/7 Scoter/ACSSAA 30 0.1456 2 7 0.1456 1 995.1 1.019 27.4 29.7 25.1636.0 26/7 Grosbeak/ACSSAA 26 0.1564 2 7 0.1216 1 874.2 0.9
39、90 20.7 22.4 19.9636.0 24/7 Rook/ACSS AA 24 0.1628 2 7 0.1085 1 818.2 0.977 17.3 19.0 16.7605.0 30/19 Teal/ACSSAA 30 0.1420 2 19 0.0852 2 938.6 0.994 26.6 29.3 25.0605.0 30/7 Wood Duck/ACSSAA 30 0.1420 2 7 0.1420 1 946.5 0.994 26.0 28.3 24.4605.0 26/7 Squab/ACSSAA 26 0.1525 2 7 0.1186 1 831.3 0.966
40、19.7 21.3 19.0605.0 24/7 Peacock/ACSSAA 24 0.1588 2 7 0.1059 1 778.8 0.953 16.5 18.1 15.9556.5 30/7 Eagle/ACSS AA 30 0.1362 2 7 0.1362 1 870.7 0.953 24.5 26.5 22.9556.5 26/7 Dove/ACSS AA 26 0.1463 2 7 0.1138 1 765.2 0.927 18.2 19.9 17.5556.5 24/7 Parakeet/ACSSAA 24 0.1523 2 7 0.1015 1 716.1 0.914 15
41、.2 16.6 14.6477.0 30/7 Hen/ACSSAA 30 0.1261 2 7 0.1261 1 746.4 0.883 21.0 22.7 20.1477.0 26/7 Hawk/ACSS AA 26 0.1354 2 7 0.1053 1 655.3 0.858 15.6 17.1 14.9477.0 24/7 Flicker/ACSSAA 24 0.1410 2 7 0.0940 1 613.9 0.846 13.0 14.2 12.5397.5 30/7 Lark/ACSSAA 30 0.1151 2 7 0.1151 1 621.8 0.806 17.5 19.3 1
42、6.7397.5 26/7 Ibis/ACSSAA 26 0.1236 2 7 0.0961 1 546.0 0.783 13.0 14.2 12.4397.5 24/7 Brant/ACSS AA 24 0.1287 2 7 0.0858 1 511.4 0.772 11.0 12.1 10.4336.4 30/7 Oriole/ACSSAA 30 0.1059 2 7 0.1059 1 526.4 0.741 14.8 16.3 14.2336.4 26/7 Linnet/ACSSAA 26 0.1137 2 7 0.0884 1 462.0 0.720 11.2 12.3 10.5300
43、.0 26/7 Ostrich/ACSSAA 26 0.1074 2 7 0.0835 1 412.2 0.680 10.0 10.9 9.40266.8 26/7 Partridge/ACSSAA 26 0.1013 2 7 0.0788 1 366.9 0.642 8.88 9.73 8.37B856134TABLE 1 ContinuedACSS Conductor Aluminum Wires Steel WiresNominalMassGA(X)orMA(X)(lb/1000ft)NominalOutsideDiameter(in.)Rated StrengthB(by type a
44、nd coating ofsteel core wire)Size(kcmil) Stranding CodewordA Class Number Diameter(in.) Layers NumberDiameter(in.) LayersGA2orMA2(kips)GA3orMA3(kips)AW2(kips)211.3 12/7 Cochin/ACSSAA (HS) 12 0.1327 1 7 0.1327 1 526.8 0.664 21.2 23.1 19.7203.2 16/19 Brahma/ACSSAA (HS) 16 0.1127 1 19 0.0977 2 674.6 0.
45、714 30.5 34.1 29.1190.8 12/7 Dorking/ACSSAA (HS) 12 0.1261 1 7 0.1261 1 475.7 0.631 19.1 20.9 18.3176.9 12/7 Dotterel/ACSSAA (HS) 12 0.1214 1 7 0.1214 1 440.9 0.607 17.7 19.4 16.9159.0 12/7 Guinea/ACSSAA (HS) 12 0.1151 1 7 0.1151 1 396.3 0.576 15.9 17.8 15.2134.6 12/7 Leghorn/ACSSAA (HS) 12 0.1059 1
46、 7 0.1059 1 335.5 0.530 13.5 15.0 12.9110.8 12/7 Minorca/ACSSAA (HS) 12 0.0961 1 7 0.0961 1 276.3 0.481 11.1 12.4 10.6101.8 12/7 Petrel/ACSSAA (HS) 12 0.0921 1 7 0.0921 1 253.8 0.461 10.2 11.4 9.75TABLE 1 Construction Requirements of Aluminum Conductors, Steel Supported (ACSS)ACSS Conductor Aluminum
47、 Wire Steel WiresNominalMassGA(X)orMA(X)(lb/1000ft)Rated Strength(by type and coating ofsteel wires)Size(kcmil) Stranding CodewordA Class Number Diameter(in.) Layers NumberDiameter(in.) LayersGA2orMA2(kips)GA3orMA3(kips)GA4orMA4(iips)GA5orMA5(kips)AW2(kips)AW3(kips)266.8 26/7 Partridge/ACSS AA 26 0.
48、1013 2 7 0.0788 1 366.8 8.88 9.73 10.8 11.4 8.37 8.88266.8 30/7 Junco/ACSS AA 30 0.0943 2 7 0.0943 1 417.4 11.7 13.0 14.4 15.2 11.2 11.7300.0 26/7 Ostrich/ACSS AA 26 0.1074 2 7 0.0835 1 412.4 10.0 10.9 12.1 12.8 9.40 10.0336.4 26/7 Linnet/ACSS AA 26 0.1137 2 7 0.0885 1 462.5 11.2 12.3 13.6 14.4 10.5
49、 11.2336.4 30/7 Oriole/ACSS AA 30 0.1059 2 7 0.1059 1 526.3 14.8 16.3 18.2 19.1 14.2 14.8397.5 24/7 Brant/ACSS AA 24 0.1287 2 7 0.0858 1 511.4 11.0 12.1 13.3 14.1 10.4 11.0397.5 26/7 Ibis/ACSS AA 26 0.1236 2 7 0.0962 1 546.5 13.0 14.2 15.8 16.5 12.4 13.0397.5 30/7 Lark/ACSS AA 30 0.1151 2 7 0.1151 1 621.9 17.5 19.3 21.5 22.6 16.7 17.5477.0 24/7 Flicker/ACSS AA 24 0.1410 2 7 0.0940 1 613.6 13.0 14.2 15.7 16.4 12.5 13.0477.0 26/7 Hawk/ACSS AA 26 0.1354 2 7 0.1053 1 655.8 15.6 17.1 18.9 19.8 14.9 15.6477.0 30/7 Hen/ACSS AA 30 0.1261 2 7 0.1261 1 746.3 21.0 22.7
