1、Designation: B 399/B 399M 04Standard Specification forConcentric-Lay-Stranded Aluminum-Alloy 6201-T81Conductors1This standard is issued under the fixed designation B 399/B 399M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the y
2、ear of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers concentric-lay-stranded con-ductors, made from round aluminum-alloy 6201-T81 (hard:s
3、olution heat-treated, cold worked, and then artificially aged)wires, for use for electrical purposes. These conductors shall beconstructed with a central core surrounded by one or morelayers of helically laid wires (Explanatory Notes 1 and 2).NOTE 1The aluminum alloy and temper designations conform
4、toANSI H35.1/H35.1M. Aluminum-alloy 6201 corresponds to UnifiedNumbering System alloy A96201 in accordance with Practice E 527.1.2 The values stated in inch-pound units or SI units are tobe regarded separately as standard. The values in each systemare not exact equivalents; therefore, each system sh
5、all be usedindependently of the other. Combining values from the twosystems may result in nonconformance with the specification.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 a part of this specification to theextent referenced herein:2.2 ASTM Standards:2B 193 Test Method for Resistivity of Electrical ConductorMaterialsB 263 Test Method for Determination of Cross-SectionalArea of Stranded ConductorsB 354 Terminology Relating to
7、Uninsulated Metallic Elec-trical ConductorsB 398/B 398M Specification for Aluminum-Alloy 6201-T81 Wire for Electrical PurposesB 682 Specification for Standard Metric Sizes of ElectricalConductorsE 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 527
8、Practice for Numbering Metals and Alloys (UNS)2.3 ANSI Standards:3ANSI H35.1, American National Standard for Alloy andTemper Designation Systems for AluminumANSI H35.1M American National Standard Alloy andTemper Designation Systems for Aluminum Metric2.4 NIST Standards:4NBS Handbook 100Copper Wire T
9、ables of the NationalBureau of Standards2.5 Aluminum Association Publication:5Publication 50, Code Words for Overhead Aluminum Elec-trical Conductors3. Classification3.1 For the purpose of this specification, conductors areclassified as follows (Explanatory Notes 1 and 2):3.1.1 Class AAFor bare cond
10、uctors usually used in over-head lines.3.1.2 Class AFor conductors to be covered with weather-resistant materials.4. Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 Quantity of each size, stranding, and class,4.1.2 Conductor size, are
11、a, and aluminum 1350 equivalentsize (if required) (Section 8 and Table 1, Table 2, or Table 3),4.1.3 Number of wires (Table 1, Table 2 or Table 3),4.1.4 Direction of lay of outer layer of aluminum wires ifother than right-hand (see 7.4),4.1.5 Compressed stranding, if required (see 8.2),4.1.6 Special
12、 tension test, if required (see 9.2 and 14.2),4.1.7 Place of inspection (see 15.2),4.1.8 Special package marking, if required (Section 16),4.1.9 Package size and type (see 16.1), and1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsi
13、bility of Subcommittee B01.07 onConductors of Light Metals.Current edition approved Sept. 1, 2004. Published September 2004. Originallyapproved in 1963. Last previous edition approved in 1999 as B 399/B 399M 99.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Cust
14、omer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.4Available from National Technical Informat
15、ion Service (NTIS), U.S. Depart-ment of Commerce, 5285 Port Royal Rd., Springfield, VA 22161.5Available from the Aluminum Association, Inc., 900 19th Street NW, Suite 300,Washington, DC 20006.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United
16、States.4.1.10 Heavy wood lagging, if required (see 16.4).5. Requirements of Wires5.1 The aluminum-alloy wire used shall conform to therequirements of Specification B 398/B 398M.6. Joints6.1 In conductors composed of seven wires, only cold-pressure joints or electric-butt, cold-upset joints are permi
17、ttedin the six outer finished wires; no joints are permitted in thecenter wire. In other conductors, cold-pressure welds, electric-butt, cold-upset welds, or electric-butt welds may be made inthe finished wires composing conductors, but such joints shallbe not closer than prescribed in Table 4. Foll
18、owing welding,electric-butt welds shall be annealed for a distance of at least 6in. 150 mm on each side of the weld.7. Lay7.1 For Class AA conductors, the preferred lay of a layer ofwires is 13.5 times the outside diameter of that layer, but thelay shall be not less than 10 nor more than 16 times th
19、isdiameter.7.2 For Class A conductors, the lay of a layer of wires shallbe not less than 8 nor more than 16 times the outside diameterof that layer, except that for conductors composed of 37 wiresor more, this requirement shall apply only to the two outerlayers. The lay of the layers other than the
20、two outer layersshall be at the option of the manufacturer, unless otherwiseagreed upon.7.3 Other lays for special purposes shall be furnished byagreement between the manufacturer and the purchaser.7.4 The direction of lay of the outer layer shall be right-handunless specified otherwise by the purch
21、aser.7.5 The direction of lay shall be reversed in successivelayers, unless otherwise specified by the purchaser.8. Construction8.1 The cross-sectional areas and the numbers and diam-eters of wires in the concentric-lay-stranded conductors shallconform to the requirements prescribed in Table 1, Tabl
22、e 2, orTable 3 as applicable (Explanatory Notes 2 and 6).8.2 Where compressed stranding is required in order that theconductor may be properly insulated, one or more layers of anystranded conductor consisting of 7 wires or more may beTABLE 1 Construction Requirements of Concentric-Lay-Stranded Alumi
23、num-Alloy 6201 Conductors Sized to Have Diameter Equal toACSR, Class AA and Class ANOTE 1Metric values listed below represent a soft conversion and as such they may not be the same as those metric masses which are calculatedfrom the basic metric density.ConductorSizeCodeWordsAApproximateAluminum 135
24、0Size HavingEquivalentResistanceSize and Strandingof ACSR withEqual DiameterRequired Construction MassRatedStrengthNominal dcResistance 20Ccmil mm2SizecmilBAWG mm2Strand-ingNumberofWiresDiameterof WiresClasslb per1000 ftkg perkmkips kNohm per1000 ftohm perkmcmilBAWG mm2in. mm1 439 200 729 1 272 000
25、. . . 644.5 1 272 000 . . . 644.5 54/7 61 0.1536 3.90 AA 1342 1999 46.8 207 0.01400 0.045971 348 800 685 1 192 500 . . . 604.2 1 192 500 . . . 604.2 54/7 61 0.1487 3.78 AA 1258 1878 43.9 194 0.01494 0.048931 259 600 638 1 113 000 . . . 564.0 1 113 000 . . . 564.0 54/7 61 0.1437 3.65 AA 1175 1751 41.
26、0 181 0.01600 0.052481 165 100 590 1 033 500 . . . 523.7 1 033 500 . . . 523.7 54/7 61 0.1382 3.51 AA 1086 1620 37.9 167 0.01730 0.056751 077 400 547 954 000 . . . 483.4 954 000 . . . 483.4 54/7 61 0.1329 3.38 AA 1005 1502 35.0 156 0.01870 0.06120927 200 470 Greeley 795 000 . . . 402.8 795 000 . . .
27、 402.8 26/7 37 0.1583 4.02 AA 864.6 1289 30.5 135 0.02173 0.07133740 800 375 Flint 636 000 . . . 322.3 636 000 . . . 322.3 26/7 37 0.1415 3.59 AA 690.8 1028 24.4 107 0.02720 0.08944652 400 331 Elgin 556 500 . . . 282.0 556 500 . . . 282.0 26/7 19 0.1853 4.71 AA 608.3 908.3 21.9 97.0 0.03089 0.101255
28、9 500 284 Darien 477 000 . . . 241.7 477 000 . . . 241.7 26/7 19 0.1716 4.36 AA 521.7 778.3 18.8 83.1 0.03602 0.1181465 400 236 Cairo 397 500 . . . 201.4 397 500 . . . 201.4 26/7 19 0.1565 3.98 AA 433.9 648.6 15.6 69.2 0.04330 0.1417394 500 200 Canton 336 400 . . . 170.5 336 400 . . . 170.5 26/7 19
29、0.1441 3.66 AA, A 367.9 548.5 13.3 58.6 0.05107 0.1676312 800 159 Butte 266 800 . . . 135.2 266 800 . . . 135.2 26/7 19 0.1283 3.26 A 291.6 435.1 10.5 46.5 0.06443 0.2112246 900 125 Alliance 211 600 0000 107.2 211 600 0000 107.2 6/1 7 0.1878 4.77 AA 230.2 343.2 8.56 37.8 0.08162 0.2678195 700 99.3 A
30、mherst 167 800 000 85.0 167 800 000 85.0 6/1 7 0.1672 4.25 AA, A 182.5 272.5 6.79 30.0 0.1030 0.3373155 400 78.6 Anaheim 133 100 00 67.4 133 100 00 67.4 6/1 7 0.1490 3.78 AA, A 144.9 215.6 5.39 23.8 0.1297 0.4264123 300 62.4 Azusa 105 600 0 53.5 105 600 0 53.5 6/1 7 0.1327 3.37 AA, A 114.9 171.3 4.2
31、7 18.9 0.1635 0.536577 470 39.2 Ames 66 360 2 33.6 66 360 2 33.6 6/1 7 0.1052 2.67 AA, A 72.24 107.5 2.80 12.4 0.2601 0.854748 690 24.7 Alton 41 740 4 21.1 41 740 4 21.1 6/1 7 0.0834 2.12 A 45.40 67.80 1.76 7.83 0.4139 1.35630 580 15.5 Akron 26 240 6 13.3 26 240 6 13.3 6/1 7 0.0661 1.68 A 28.52 42.5
32、8 1.11 4.92 0.6588 2.159ACode words shown in this column are obtained from, “Publication 50, Code Words for Overhead Aluminum Electrical Conductors,” by the Aluminum Association. Theyare provided here for information only.BConversion factors: 1 mil = 2.54 E-02 mm1 cmil = 5.067 E-04 mm21 in. = 25.4 m
33、m1 lb/1000 ft = 1.488E+00kg/km1 ft = 3.048 E-01 m1 lb = 4.536 E-01 kg1 lbf = 4.448 E-03 kNB 399/B 399M 042slightly compressed, thereby reducing the outside diameter ofthe conductor by not more than 3 %, provided that the area ofcross section after compressing is in accordance with Section12.NOTE 2Th
34、e users attention is called to the claim that certaincompressed strand constructions may be subject to patent rights, forexample: Patents 3,383,704 and 3,444,684.9. Rated Strength of Conductor9.1 The rated strength of a conductor shall be taken as thatpercentage, indicated in Table 5 of the sum of t
35、he strengths ofthe 6201 wires, calculated on the basis of the nominal wirediameter and the specified minimum average tensile strengthgiven in Specification B 398/B 398M.9.2 Tests for determining the breaking strength of a conduc-tor are not required by this specification but may be made ifagreed upo
36、n between the manufacturer and the purchaser at thetime of placing an order. When tested, the breaking strength ofa conductor shall be not less than the rated strength if failureoccurs in the free length at least 1 in. 25 mm beyond the endof either gripping device, or shall be not less than 95 % of
37、therated strength if failure occurs inside, or within 1 in. 25 mmof the end of, either gripping device (Explanatory Note 3).9.3 Rated strength and breaking strength values shall berounded to three significant figures, in the final value only, inaccordance with the rounding method in Practice E 29.10
38、. Density10.1 For the purpose of calculating, mass, mass per unitlength, cross sections, and so forth, the density of aluminum-alloy 6201 shall be taken as 2690 kg/m3(0.097 lb/in.3) at 20C.11. Mass and Electrical Resistance11.1 The mass and electrical resistance of a unit length ofstranded conductor
39、 are a function of the length of lay. Theappropriate mass and electrical resistance may be determinedusing an increment of 2 %. When greater accuracy is desired,the increment based on the specific lay of the conductor may becalculated (Explanatory Note 4).11.2 The maximum electrical resistance of a
40、unit length ofstranded conductor shall not exceed 102 % of the nominal dcresistance shown in Table 1, Table 2, and Table 3 (ExplanatoryNote 7). When the dc resistance is measured at other than20C, it is to be corrected by using the multiplying factor givenin Table 6.11.3 For conductors to be used in
41、 covered or insulated wiresor cables dc resistance measurements may be used in lieu of themethod outlined in Section 12.12. Variation in Area12.1 The area of cross section of the conductor shall be notless than 98 % of the area specified. Unless otherwise specifiedby the purchaser, the manufacturer
42、may have the option ofTABLE 2 Construction Requirements of Concentric-Lay-Stranded Aluminum-Alloy 6201 Conductors Sized by Standard Areas, Class AAand Class ANOTE 1Metric values listed below represent a soft conversion and as such they may not be the same as those metric masses which are calculatedf
43、rom the basic metric density.Conductor Size Required Construction Mass Rated StrengthNominal dcResistance 20Ccmil AWG mm2Number ofWiresDiameter of WiresClasslb per1000 ftkg per1000 mkips kNohm per1000 ftohm per1000 min. mm1 750 000 . . . 886 61 0.1694 4.30 AA 1632 2431 56.9 251 0.01151 0.037811 500
44、000 . . . 759 61 0.1568 3.98 AA 1399 2082 48.8 215 0.01344 0.044141 250 000 . . . 631 61 0.1431 3.63 AA 1165 1732 40.6 179 0.01613 0.053061 000 000 . . . 508 37 0.1644 4.18 AA 932.5 1393 32.9 146 0.02015 0.06597900 000 . . . 456 37 0.1560 3.96 AA 839.7 1250 29.6 131 0.02238 0.07351800 000 . . . 404
45、37 0.1470 3.73 AA 745.6 1109 26.3 116 0.02520 0.08285750 000 . . . 381 37 0.1424 3.62 AA 699.6 1045 24.7 109 0.02686 0.08796700 000 . . . 354 37 0.1375 3.49 AA 652.3 971.2 23.0 101 0.02881 0.09464650 000 . . . 330 37 0.1325 3.37 AA 605.7 905.5 21.4 94.9 0.03102 0.10150600 000 . . . 303 37 0.1273 3.2
46、3 AA, A 559.1 831.9 20.6 91.0 0.03361 0.11049550 000 . . . 279 37 0.1219 3.10 AA, A 512.7 766.2 18.9 83.9 0.03665 0.11995500 000 . . . 253 19 0.1622 4.12 AA 466.1 695.0 16.8 74.2 0.04031 0.13224450 000 . . . 228 19 0.1539 3.91 AA 419.6 626.0 15.1 66.8 0.04478 0.14683400 000 . . . 203 19 0.1451 3.69
47、AA, A 373.0 557.5 13.4 59.5 0.05037 0.16486350 000 . . . 178 19 0.1357 3.45 A 326.3 487.3 11.8 52.0 0.05759 0.18860300 000 . . . 152 19 0.1257 3.19 A 280.0 416.7 10.5 46.6 0.06712 0.22059250 000 . . . 126 19 0.1147 2.91 A 233.1 346.7 8.76 38.8 0.08061 0.26509211 600 0000 107 7 0.1739 4.42 AA, A 197.
48、4 294.7 7.34 32.5 0.09519 0.31188167 800 000 84.9 7 0.1548 3.93 AA, A 156.4 233.0 5.82 25.7 0.12013 0.39450133 100 00 67.3 7 0.1379 3.50 AA, A 124.1 184.8 4.62 20.4 0.15137 0.49738105 600 0 53.5 7 0.1228 3.12 AA, A 98.43 146.8 3.82 17.0 0.19089 0.6259266 360 2 33.5 7 0.0974 2.47 AA, A 61.92 92.00 2.
49、40 10.6 0.30343 0.9987041 740 4 21.1 7 0.0772 1.96 A 38.90 57.90 1.51 6.69 0.48300 1.586026 240 6 13.2 7 0.0612 1.55 A 24.49 36.20 0.949 4.18 0.76856 2.5361B 399/B 399M 043determining the cross-sectional area by either of the followingmethods, except that in case of question regarding areacompliance, the method of 12.1.2 shall be used.12.1.1 The area of cross section of a conductor may bedetermined by calculations from diameter measurements, ex-pressed to four decimal places, of its component wires at anypoint when measured perpendicularly to th
