1、Designation: B401 12 (Reapproved 2016)Standard Specification forCompact Round Concentric-Lay-Stranded AluminumConductors, Steel-Reinforced (ACSR/COMP)1This standard is issued under the fixed designation B401; the number immediately following the designation indicates the year oforiginal adoption or,
2、 in the 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 compact round concentric-lay-stranded conductors made
3、from aluminum 1350-H19 (extrahard) wires and round zinc-coated, aluminum-coated, oraluminum-clad steel core wires usually used in overhead lines.These conductors shall be constructed with one steel core wiresurrounded by one or more layers of helically-laid compactedor otherwise shaped aluminum wire
4、s (Explanatory Note 1 andNote 2).1.2 Compact ACSR covered by this specification has fivetypes of steel core wire which are designated by abbreviationsas follows (Explanatory Note 2 and Note 7).1.2.1 ACSR/GA2/COMPCompact ACSR using Class Azinc-coated steel wire,1.2.2 ACSR/GC2/COMPCompact ACSR using C
5、lass Czinc-coated steel wire,1.2.3 ACSR/AW2/COMPCompact ACSR usingaluminum-clad steel wire, AW2 (Normal Strength).1.2.4 ACSR/AW3/COMPCompact ACSR usingaluminum-clad steel wire, AW3 (High Strength).1.3 The SI values of density and resistivity are to beregarded as standard. For all other properties th
6、e inch-poundvalues are to be regarded as standard and the SI units may beapproximate.NOTE 1Prior to 1975, aluminum 1350 was designated as ECaluminum.NOTE 2The aluminum and temper designations conform to ANSIH35.1. Aluminum 1350 corresponds to Unified Numbering SystemA91350 in accordance with Practic
7、e E527.2. Referenced Documents2.1 The following documents of the issue in effect on dateof material purchase form a part of this specification to theextent referenced herein.2.2 ASTM Standards:2B193 Test Method for Resistivity of Electrical ConductorMaterialsB230/B230M Specification for Aluminum 135
8、0H19 Wirefor Electrical PurposesB232/B232M Specification for Concentric-Lay-StrandedAluminum Conductors, Coated-Steel Reinforced (ACSR)B263 Test Method for Determination of Cross-SectionalArea of Stranded ConductorsB341/B341M Specification for Aluminum-Coated (Alumi-nized) Steel Core Wire for Alumin
9、um Conductors, SteelReinforced (ACSR/AZ) (Withdrawn 2007)3B354 Terminology Relating to Uninsulated Metallic Electri-cal ConductorsB498/B498M Specification for Zinc-Coated (Galvanized)Steel Core Wire for Use in Overhead Electrical Conduc-torsB502 Specification for Aluminum-Clad Steel Core Wire forUse
10、 in Overhead Electrical Aluminum ConductorsB802M Specification for Zinc-5% Aluminum-MischmetalAlloy-Coated Steel Core Wire for Aluminum Conductors,Steel Reinforced (ACSR)Metric(Discontinued 1998-Replaced by B 802/B802M) (Withdrawn 1998)3E29 Practice for Using Significant Digits in Test Data toDeterm
11、ine Conformance with SpecificationsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)2.3 Other Documents:ANSI H35.1 American National Standard Alloy and TemperDesignation Systems For Aluminum4NBS Handbook 100 Copper Wire Tables of the NationalBureau of Standards51This
12、 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 Oct. 1, 2016. Published October 2016. Originallyapproved in 1963. Last previous edition approved in 201
13、2 as B401 12. DOI:10.1520/B0401-12R16.2For 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 Summary page onthe ASTM website.3The last approved vers
14、ion of this historical standard is referenced onwww.astm.org.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.5Available from National Technical Information Service (NTIS), 5301 ShawneeRd., Alexandria, VA 22312, http:/www.
15、ntis.gov.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13. Ordering Information3.1 Orders for material under this specification shall includethe following information:3.1.1 Quantity of each size and stranding (Table 1),3.1.2 Conducto
16、r size: circular-mil area or AWG (Section 6,and Table 1),3.1.3 Steel wire coating or aluminum-clad (see 11.3),3.1.4 Special tension test, if required (see 15.3),3.1.5 Place of inspection (Section 16), and3.1.6 Packaging and Package Marking (Section 17).4. Joints4.1 Electric-butt welds, electric-butt
17、, cold-upset welds, orcold-pressure welds in the individual round-drawn or shapedaluminum wires may be made during the stranding process. Noweld shall occur within 50 ft (15 m) of a weld in the same wireor in any other wire of the completed conductor.4.2 There shall be no joints of any kind made in
18、the finishedcoated, or aluminum-clad steel wires.5. Lay5.1 The preferred lay of the aluminum wires of aluminumconductors, steel-reinforced, having a single wire steel coreand one layer of aluminum wires is 14 times the outsidediameter of the conductor but the lay shall be not less than 13nor more th
19、an 16 times that diameter.5.2 The preferred lay of the outside layer of aluminum wiresof aluminum conductors, steel-reinforced, having multiplelayers of aluminum wires is 12 times the outside diameter ofthe conductor but the lay shall be not less than 11 nor morethan 14 times that diameter.5.3 The p
20、referred lay of the layer immediately beneath theoutside layer of aluminum wires of aluminum conductors,steel-reinforced, having multiple layers of aluminum wires is14 times the outside diameter of such layer but the lay shall benot less than 11 nor more than 17.5 times that diameter.5.4 The directi
21、on of lay of the outside layer of aluminumwires shall be right hand.5.5 The direction of lay shall be reversed in successivelayers.6. Construction6.1 The diameter of the steel core wire, the number ofaluminum wires, the aluminum cross-sectional area, the diam-eter and weight of the compact round con
22、centric-lay-strandedaluminum conductors, steel-reinforced, shall be as shown inTable 1.7. Rated Strength of Conductor7.1 The rated strength of a completed conductor shall betaken as the aggregate strength of the aluminum and steelcomponents, calculated as follows: The strength contributionof the alu
23、minum wires shall be taken as the percentage,according to the number of layers of aluminum wires, indicatedin Table 2, of the sum of the strengths of the 1350-H19 wires,calculated on the basis of the nominal wire diameter for thecorresponding noncompacted construction given in Specifica-tion B232/B2
24、32M and the appropriate specified minimumaverage tensile strength given in Specification B230/B230M.The strength contribution of the steel core shall be taken as96 % of the strength of the steel wire calculated from itsspecified nominal diameter and the appropriate specified mini-mum stress at 1 % e
25、xtension given in Specification B341/B341M, B498/B498M, B502,orB802M, whichever is appli-cable.7.2 Rated strength and breaking strength values shall berounded to three significant figures, in the final value only, inaccordance with Practice E29.7.3 Rated strength of conductors are given in Table 3.8
26、. Density8.1 For the purpose of calculating mass, mass per unitlength, cross sections, and so forth, the density of aluminum1350 shall be taken as 2705 kg/m3(0.0975 lb/in.3) at 20C.8.2 For the purpose of calculating mass, mass per unitlength, cross sections, and so forth, the density of coated steel
27、wire shall be taken as 7780 kg/m3(0.281 lb in.3) at 20C.TABLE 1 Construction Requirements for Compact Round Concentric-Lay-Stranded Aluminum Conductors, Steel ReinforcedRequired Construction Nominal Mass for Conductors With:Conductor Size(Aluminum Wires)Number ofAluminumWiresSteel WireDiameterCompac
28、tConductorDiameterCoated SteelCore WireAluminum-CladSteel Core Wirecmil mm2AWG in. mm in. mm lb/1000 ft kg/km lb/1000 ft kg/km336 400 170.2 . 18 0.1367 3.47 0.628 15.95 364.8 543.3 357.2 531.1266 800 135.0 . 18 0.1217 3.09 0.559 14.20 289.1 430.8 283.1 421.1211 600 107.2 0000 6 0.1878 4.77 0.517 13.
29、13 290.8 433.4 276.5 412.1167 800 85.1 000 6 0.1672 4.25 0.461 11.71 230.5 343.9.0 219.2 327.1133 100 67.3 00 6 0.1489 3.78 0.410 10.41 182.8 272.3 173.8 258.9105 600 53.5 0 6 0.1327 3.37 0.365 9.27 145.2 216.4 138.1 205.883 690 42.4 1 6 0.1181 3.00 0.326 8.28 115.0 171.4 109.4 163.066 360 33.6 2 7
30、0.1299 3.30 0.298 7.57 106.6 158.6 99.8 148.466 360 33.6 2 6 0.1052 2.67 0.290 7.37 91.2 135.9 86.8 129.252 620 26.7 3 6 0.0937 2.38 0.258 6.55 72.4 107.9 68.8 102.641 740 21.1 4 7 0.1029 2.61 0.236 5.99 67.0 99.7 62.7 93.441 740 21.2 4 6 0.0834 2.12 0.229 5.82 57.3 85.6 54.5 81.426 240 13.3 6 6 0.0
31、661 1.68 0.182 4.62 36.0 53.7 . .B401 12 (2016)28.3 For the purpose of calculating mass, mass per unitlength, cross sections, and so forth, the density of aluminum-clad steel wire shall be taken as 6590 kg/m3(0.2381 lb/in.3)at20C.9. Mass and Electrical Resistance9.1 The mass and electrical resistanc
32、e of a unit length ofstranded conductor are a function of the length of lay. Theapproximate mass and electrical resistance may be determinedusing an increment of 1.5 % for conductors composed of 1steel and 6 or 7 aluminum wires and an increment of 2 % forconductors composed of 1 steel and 18 aluminu
33、m wires. Whengreater accuracy is desired, the increment based on the specificlay of the conductor may be calculated (Explanatory Note 4).9.2 In the calculation of the electrical resistance of acompleted conductor, coated steel wires may be included.9.3 The maximum electrical resistance of a unit len
34、gth ofstranded conductor shall not exceed 102 % of the nominal dcresistance shown in Table 4 (Explanatory Note 6). When the dcresistance is measured at other than 20C, it is to be correctedby using the multiplying factor given in Table 5.9.4 For conductors to be used in covered or insulated wiresor
35、cables dc resistance measurements may be used in lieu of themethod outlined in Section 12.10. Workmanship, Finish, and Appearance10.1 The conductor shall be clean and free of imperfectionsnot consistent with good commercial practice.11. Requirements for Wires11.1 Before stranding and compacting, the
36、 round aluminumwire used shall conform to the requirements of SpecificationB230/B230M.11.2 Aluminum wires shaped before stranding shall meetthe requirements of Specification B230/B230M, except forshape, tensile and elongation requirements, and diametertolerances. The minimum tensile and elongation r
37、equirementsshall be 96 % of those for round wires of the same nominalarea, provided the completed conductor is capable of meetingthe requirements of Section 7. The area tolerances for theshaped wires shall be such that the finished conductor con-forms to Section 12.11.3 Before stranding, the steel c
38、ore wire used shall con-form to the requirements of Specification B341/B341M, B498/B498M, B502,orB802M, whichever is applicable.12. Variation in Area12.1 The cross-sectional area of the aluminum in wires of acompact round ACSR shall be not less than 98 % of thecross-sectional area as specified in co
39、lumn 1 of Table 1. Themanufacturer shall determine the cross-sectional area by TestMethod B263. In applying this method, the increment inweight resulting from stranding may be the applicable valuespecified in 9.1 or may be calculated from the measureddimensions of the sample under test. In case of q
40、uestionregarding area compliance, the actual mass increment due tostranding shall be calculated.13. Variation in Diameter13.1 The diameter of the compact round ACSR shall varyby not more than +1 2 % from the diameter specified in Table1.14. Sampling14.1 The aluminum cross-sectional area (Section 12)
41、 andthe conductor diameter (Section 13) shall be measured on asample of completed conductor. At least one sample shall betested for each size of conductor on each order of quantitiesfrom 5000 to 100 000 ft (1500 to 30 000 m) and oneadditional sample tested from each 100 000 ft thereafter.15. Mechani
42、cal and Electrical Tests15.1 Tests for mechanical and electrical properties of alu-minum wires composing the conductors shall be made beforestranding (Explanatory Note 5).15.2 Tests for the mechanical and electrical properties of thesteel core wire shall be made before, but not after stranding,unles
43、s otherwise agreed by the manufacturer and the purchaseras provided in 15.3 (Explanatory Note 5).15.3 At the option of the purchaser, at the time of placingthe order, tension and elongation tests of wire before strandingmay be waived, and the completed conductor may be tested asa unit. The minimum b
44、reaking strength of conductors so testedshall be not less than the rated strength if failure occurs in thefree length at least 1 in. (25 mm) beyond the end of eithergripping device, or shall be not less than 95 % of the ratedstrength if failure occurs inside, or within 1 in. of the end of,either gri
45、pping device. The free length between grips of the testspecimen shall be not less than 24 in. (600 mm), and care shallbe taken to ensure that the wires in the conductor are evenlygripped during the test (Explanatory Note 3).16. Inspection16.1 Unless otherwise specified in the contract or purchaseord
46、er, the manufacturer shall be responsible for the perfor-mance of all inspection and test requirements specified.16.2 All inspections and tests shall be made at the place ofmanufacture unless otherwise agreed to between the manufac-turer and the purchaser at the time of purchase.16.3 The manufacture
47、r shall afford the inspector represent-ing the purchaser all reasonable manufacturers facilities tosatisfy him that the material is being furnished in accordancewith this specification.TABLE 2 Strength Rating FactorsStranding Rating Factor, %Number of Wires Number of LayersAluminum SteelAluminum Ste
48、el Aluminum Steel61 1A96 9671A96 9618 1 2A93 96ACentral steel wire only: the 96 % Rating Factor is applied to the single steel wirecore in the event it contains a weld (made prior to drawing).B401 12 (2016)317. Packaging and Package Marking17.1 Package sizes and kind of package, reels, or coils shal
49、lbe agreed upon between the manufacturer and the purchaser.17.2 The conductors shall be protected against damage inordinary handling and shipping.17.3 There shall be only one length of conductor on a reel.17.4 The net mass, length, size, kind of conductor,stranding, kind of coating, class of zinc coating (if used), andany other necessary identification shall be marked on a tagattached to the end of the conductor inside the package. Thissame information, together with the purchase order number,the manufacturers serial number (if any), and all shippingmarks and o
