1、Designation: B 856 03Standard Specification forConcentric-Lay-Stranded Aluminum Conductors, CoatedSteel Supported (ACSS)1This standard is issued under the fixed designation B 856; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the
2、 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 round wire concentric-lay-stranded aluminum conductors, steel supported (ACSS) for
3、 useas overhead electrical conductors (see Explanatory 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 nonconformance with the specification.For c
4、onductor 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 from correspondingvalues stated o
5、r 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.2. Referenced Documents2.1 The following documents of the issue
6、 in effect on dateof material purchase form part of this specification to the extentreferenced herein:2.2 ASTM Standards:B 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 Conduct
7、ors, SteelReinforced (ACSR/AZ)2B 354 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 Alum
8、inum Conductors, Steel Reinforced(ACSR)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/AW2B 606 Specification for High-Strength Zinc
9、-Coated (Galva-nized) Steel Core Wire for Aluminum and Aluminum-Alloy Conductors, Steel Reinforced2B 609/B 609M Specification for Aluminum 1350 RoundWire, Annealed and Intermediate Tempers, for ElectricalPurposes2B 802/B 802M Specification for Zinc-5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wir
10、e 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 Rein-forced2B 857 Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coate
11、d-Steel Sup-ported (ACSS/TW)2E 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications3E 527 Practice for Numbering Metals and Alloys (UNS)42.3 Other Standards:Aluminum Association Publication 50 Code words forOverhead Aluminum Electrical Conductors5NBS Hand
12、book 100Copper Wire Tables of the NationalBureau of Standards63. Terminology3.1 For definitions of terms relating to conductors refer todefinitions found in Specification B 354.3.2 Definitions:3.2.1 aluminizedaluminum coated.3.2.2 aluminum-cladaluminum bonded.3.2.3 galvanizedzinc coated.1This specif
13、ication 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 October 1, 2003. Published October 2003. Originallyapproved in 1995. Last previous edition approved in 2001 as
14、 B 856-01a.2Annual Book of ASTM Standards, Vol 02.03.3Annual Book of ASTM Standards, Vol 14.02.4Annual Book of ASTM Standards, Vol 01.01.5Available from the Aluminum Association, Inc., 900 19th Street, NW, Suite300, Washington, DC 2006.6Available from National Technical Information Services, 5285 Po
15、rt RoyalRoad, Springfield, VA 22161.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.3 Abbreviations:3.3.1 ACSSaluminum conductor, steel supported.3.3.2 ACSS/GAsupported with galvanized steel core wire,coating Class A in accordance
16、with Specification B 498/B498M.3.3.3 ACSS/GBsupported with galvanized steel core wire,coating Class B in accordance with Specification B 498/B498M.3.3.4 ACSS/GCsupported with galvanized steel core wire,coating Class C in accordance with Specification B 498/B498M.3.3.5 ACSS/HSsupported with high-stre
17、ngth galvanizedsteel core wire in accordance with Specification B 606.3.3.6 ACSS/MAsupported with Zn-5A1-MM coated steelcore wire, coating Class A in accordance with SpecificationB 802/B 802M.3.3.7 ACSS/MBsupported with Zn-5A1-MM coated steelcore wire, coating Class B in accordance with Specificatio
18、nB 802/B 802M.3.3.8 ACSS/MCsupported with Zn-5A1-MM coated steelcore wire, coating Class C in accordance with SpecificationB 802/B 802M.3.3.9 ACSS/MSsupported with high-strength Zn-5A1-MM coated steel core wire in accordance with Specifica-tion B 803.3.3.10 Zn-5A1-MMzinc-5 % aluminum-mischmetal allo
19、y.3.3.11 ACSS/AZsupported with aluminum steel core wirein accordance with Specification B 341/B 341M.3.3.12 ACSS/AW supported with aluminumclad core wirein accordance with Specification B 502.4. Ordering Information4.1 Orders for material under this specification shall includethe following informati
20、on:4.1.1 Quantity of each size, stranding, and class,4.1.2 Conductor size, circular-mil area or AWG, and diam-eter (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) ofcoating (see 5.2),4.1.5 Direction of lay of outer layer o
21、f aluminum wires ifother than right hand (see 7.2),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. Requi
22、rement for Wires5.1 After stranding, the round aluminum wires shall con-form to the requirements of Specification B 609/B 609M for1350-0 temper, except for elongation requirements. The elon-gation shall not be less than 20 % after stranding.5.2 Before stranding, the steel core wire shall meet thereq
23、uirements of Specification B 341/B 341M, B 498/B 498M,B 502, B 606, B 802/B 802M, or B 803, whichever is appli-calbe.5.3 The stranded steel core shall meet the requirements ofSpecification B 500/B 500M or B 549, as applicable.6. Joints6.1 Electric-butt welds, cold-pressure welds, and electric-butt,
24、cold-upset welds in the finished individual aluminumwires composing the conductor may be made during thestranding process. No weld shall occur within 50 ft (15 m) ofa weld in the same wire or in any other wire of the completedconductor (see Explanatory Note 2).6.2 There shall be no joints of any kin
25、d made in the finishedcoated steel wires.7. Lay7.1 The length of lay of the various layers of wires in aconductor shall conform to Table 2 (see Explanatory Note 3).7.2 The direction of lay of the outside layer of aluminumwires shall be right hand unless otherwise specified in thepurchase order. The
26、direction of lay of the aluminum and steelwires shall be reversed in successive layers.8. Construction8.1 The ACSS may be constructed using steel core wirewith any one of ten types of protective coatings. The acceptablecore wires are galvanized steel core wires, coating Classes A,B, or C in accordan
27、ce with Specification B 498/B 498M;high-strength galvanized steel core wire in accordance withSpecification B 606; Zn-5A1-MM, coated steel core wire,coating Classes A, B, or C, in accordance with SpecificationB 802/B 802M; high-strength Zn-5A1-MM coated steel corewire in accordance with Specificatio
28、n B 803; aluminized steelcore wire in accordance with Specification B 341/B 341M;aluminum-clad core wire in accordance with SpecificationB 502.8.2 The number and diameter of the aluminum and steelwires and the area of cross section of the aluminum wires forstandard constructions are shown in Table 1
29、.9. Rated Strength of Conductor9.1 The rated strength of the completed ACSS conductorshall be taken as the aggregate strengths of the aluminum andsteel components, calculated as follows. The strength contri-bution of the aluminum wires shall be taken as that percentage,indicated in Table 3, of the s
30、um of the strengths of the 1350-0wires calculated from their minimum average tensile strengthsspecified in Specification B 609/B 609M. The strength contri-bution of the steel core wires shall be taken as that percentage,indicated in Table 3, of the sum of the strengths of the steelwires, calculated
31、from their specified nominal wire diameterand the appropriate minimum ultimate tensile strengths givenin Specification B 341/B 341M, B 498/B 498M, B 502, B 606,B 802/B 802M, or B 803, whichever is applicable.9.2 Rated strength and breaking strength values shall berounded to three significant figures
32、, in the final value only, inaccordance with the rounding method of Practice E 29.9.3 Rated strength of typical constructions are given inTable 4.10. Density10.1 For the purpose of calculating mass, cross sections, andso forth, the density of aluminum 1350 shall be taken as 0.0975lb/in.3(2705 kg/m3)
33、 at 20C (see Explanatory Note 4).B856032TABLE 1 Construction Requirements of Aluminum Conductors, Steel Supported (ACSS)Conductor InformationClassStrandingDesignAluminum/SteelStranding NominalOutsideDiameterin.Mass,Alb/1000 ftSize cmilBSize mm2CCode WordDNumberDiameter,in.BLayers NumberDiameter,in.B
34、Layers2 312 000 1171 Thrasher/ACSS AA 76/19 76 0.1744 4 19 0.0814 2 1.802 25232 167 000 1098 Kiwi/ACSS AA 72/7 72 0.1735 4 7 0.1157 1 1.735 23012 156 000 1092 Bluebird/ACSS AA 84/19 84 0.1602 4 19 0.0961 2 1.762 25081 780 000 901.9 Chukar/ACSS AA 84/19 84 0.1456 4 19 0.0874 2 1.602 20721 590 000 805
35、.7 Falcon/ACSS AA 54/19 54 0.1716 3 19 0.1030 2 1.545 20421 590 000 805.7 Lapwing/ACSS AA 45/7 45 0.1880 3 7 0.1253 1 1.504 17901 510 500 765.4 Parrot/ACSS AA 54/19 54 0.1672 3 19 0.1003 2 1.505 19381 510 500 765.4 Nuthatch/ACSS AA 45/7 45 0.1832 3 7 0.1221 1 1.466 17001 431 000 725.1 Plover/ACSS AA
36、 54/19 54 0.1628 3 19 0.0977 2 1.465 18381 431 000 725.1 Bobolink/ACSS AA 45/7 45 0.1783 3 7 0.1189 1 1.427 16111 351 000 684.8 Martin/ACSS AA 54/19 54 0.1582 3 19 0.0949 2 1.424 17351 351 000 684.8 Dipper/ACSS AA 45/7 45 0.1733 3 7 0.1155 1 1.386 15211 272 000 644.5 Pheasant/ACSS AA 54/19 54 0.1535
37、 3 19 0.0921 2 1.382 16341 272 000 644.5 Bittern/ACSS AA 45/7 45 0.1681 3 7 0.1121 1 1.345 14321 192 500 603.7 Grackle/ACSS AA 54/19 54 0.1486 3 19 0.0892 2 1.338 15311 192 500 604.2 Bunting/ACSS AA 45/7 45 0.1628 3 7 0.1085 1 1.302 13421 113 000 564.0 Finch/ACSS AA 54/19 54 0.1436 3 19 0.0862 2 1.2
38、93 14301 113 000 564.0 Bluejay/ACSS AA 45/7 45 0.1573 3 7 0.1049 1 1.259 12541 033 500 523.7 Curlew/ACSS AA 54/7 54 0.1383 3 7 0.1383 1 1.245 13291 033 500 523.7 Ortolan/ACSS AA 45/7 45 0.1515 3 7 0.1010 1 1.212 1163954 000 483.4 Cardinal/ACSS AA 54/7 54 0.1329 3 7 0.1329 1 1.196 1227.1954 000 483.4
39、 Rail/ACSS AA 45/7 45 0.1456 3 7 0.0971 1 1.165 1074900 000 456.0 Canary/ACSS AA 54/7 54 0.1291 3 7 0.1291 1 1.162 1158900 000 456.0 Ruddy/ACSS AA 45/7 45 0.1414 3 7 0.0943 1 1.131 1013795 000 402.8 Mallard/ACSS AA 30/19 30 0.1628 2 19 0.0977 2 1.140 1233.9795 000 402.8 Condor/ACSS AA 54/7 54 0.1213
40、 3 7 0.1213 1 1.092 1022795 000 402.8 Tern/ACSS AA 45/7 45 0.1329 3 7 0.0886 1 1.063 895795 000 402.8 Drake/ACSS AA 26/7 26 0.1749 2 7 0.1360 1 1.108 1093795 000 402.8 Cuckoo/ACSS AA 24/7 24 0.1820 2 7 0.1213 1 1.092 1023715 500 362.6 Redwing/ACSS AA 30/19 30 0.1544 2 19 0.0926 2 1.081 1109.3715 500
41、 362.6 Starling/ACSS AA 26/7 26 0.1659 2 7 0.1290 1 1.051 983.7715 500 362.6 Stilt/ACSS AA 24/7 24 0.1727 2 7 0.1151 1 1.036 921666 600 337.8 Gannet/ACSS AA 26/7 26 0.1601 2 7 0.1245 1 1.014 916.2666 600 337.8 Flamingo/ACSS AA 24/7 24 0.1667 2 7 0.1111 1 1.000 857.9636 000 322.3 Egret/ACSS AA 30/19
42、30 0.1456 2 19 0.0874 2 1.019 987.2636 000 322.3 Scoter/ACSS AA 30/7 30 0.1456 2 7 0.1456 1 1.019 995.1636 000 322.3 Grosbeak/ACSS AA 26/7 26 0.1564 2 7 0.1216 1 0.990 874.2636 000 322.3 Rook/ACSS AA 24/7 24 0.1628 2 7 0.1085 1 0.977 818.2605 000 306.6 Teal/ACSS AA 30/19 30 0.1420 2 19 0.0852 2 0.99
43、4 938.6605 000 306.6 Wood Duck/ACSS AA 30/7 30 0.1420 2 7 0.1420 1 0.994 946.5605 000 306.6 Squab/ACSS AA 26/7 26 0.1525 2 7 0.1186 1 0.966 831.3605 000 306.6 Peacock/ACSS AA 24/7 24 0.1588 2 7 0.1059 1 0.953 778.8556 500 282.0 Eagle/ACSS AA 30/7 30 0.1362 2 7 0.1362 1 0.953 870.7556 500 282.0 Dove/
44、ACSS AA 26/7 26 0.1463 2 7 0.1138 1 0.927 765.2556 500 282.0 Parakeet/ACSS AA 24/7 24 0.1523 2 7 0.1015 1 0.914 716.1477 000 241.7 Hen/ACSS AA 30/7 30 0.1261 2 7 0.1261 1 0.883 746.4477 000 241.7 Hawk/ACSS AA 26/7 26 0.1354 2 7 0.1053 1 0.858 655.3477 000 241.7 Flicker/ACSS AA 24/7 24 0.1410 2 7 0.0
45、940 1 0.846 613.9397 500 201.4 Lark/ACSS AA 30/7 30 0.1151 2 7 0.1151 1 0.806 621.8397 500 201.4 Ibis/ACSS AA 26/7 26 0.1236 2 7 0.0961 1 0.783 546.0397 500 201.4 Brant/ACSS AA 24/7 24 0.1287 2 7 0.0858 1 0.772 511.4336 400 170.5 Oriole/ACSS AA 30/7 30 0.1059 2 7 0.1059 1 0.741 526.4336 400 170.5 Li
46、nnet/ACSS AA 26/7 26 0.1137 2 7 0.0884 1 0.720 462.0300 000 152.0 Ostrich/ACSS AA 26/7 26 0.1074 2 7 0.0835 1 0.680 412.2266 800 135.2 Partridge/ACSS AA 26/7 26 0.1013 2 7 0.0788 1 0.642 366.9211 300 107.1 Cochin/ACSS AA (HS) 12/7 12 0.1327 1 7 0.1327 1 0.664 526.8203 200 103.0 Brahma/ACSS AA (HS) 1
47、6/19 16 0.1127 1 19 0.0977 2 0.714 674.6190 800 96.7 Dorking/ACSS AA (HS) 12/7 12 0.1261 1 7 0.1261 1 0.631 475.7176 900 89.6 Dotterel/ACSS AA (HS) 12/7 12 0.1214 1 7 0.1214 1 0.607 440.9159 000 80.6 Guinea/ACSS AA (HS) 12/7 12 0.1151 1 7 0.1151 1 0.576 396.3134 600 68.2 Leghorn/ACSS AA (HS) 12/7 12
48、 0.1059 1 7 0.1059 1 0.530 335.5110 800 56.1 Minorca/ACSS AA (HS) 12/7 12 0.0961 1 7 0.0961 1 0.481 276.3101 800 51.6 Petrel/ACSS AA (HS) 12/7 12 0.0921 1 7 0.0921 1 0.461 253.8AMass based on H.S. (High Strength) Class A zinc-coated steel core.BConversion factors:1 cmil = 5.067E04 mm2(0.0005067 mm2)
49、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 (0.004448 kN)Cmm2sizes are a numeric conversion of the kcmil size and are provided for information only.DCode words shown in this column are obtained from “Publication 50, Code Words for Overhead Aluminum Electrical Conductors,” by the Aluminum Association. Theyare provided for information only.B85603310.2 For the purpose of calculating mass, cross sections, andso forth, the density of galvanized, aluminized, or Zn-5A1-MMalloy coated ste
