1、Designation: B399/B399M 04 (Reapproved 2010)Standard Specification forConcentric-Lay-Stranded Aluminum-Alloy 6201-T81Conductors1This standard is issued under the fixed designation B399/B399M; the number immediately following the designation indicates the yearof original adoption or, in the case of r
2、evision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () 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 620
3、1-T81 (hard:solution 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 designat
4、ions conform toANSI H35.1/H35.1M. Aluminum-alloy 6201 corresponds to UnifiedNumbering System alloy A96201 in accordance with Practice E527.1.2 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, ea
5、ch system shall 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 o
6、f 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 ConductorMaterialsB263 Test Method for Determination of Cross-SectionalArea of Stranded ConductorsB354 Terminology Rel
7、ating to Uninsulated Metallic Elec-trical ConductorsB398/B398M Specification for Aluminum-Alloy 6201-T81Wire for Electrical PurposesB682 Specification for Metric Sizes of Electrical Conduc-torsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE527 Prac
8、tice for Numbering Metals and Alloys in theUnified Numbering System (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:4NB
9、S Handbook 100Copper Wire Tables 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):
10、3.1.1 Class AAFor bare conductors 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 clas
11、s,4.1.2 Conductor size, area, and aluminum 1350 equivalentsize (if required) (Section 8 and Table 1, Table 2,orTable 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 require
12、d (see 8.2),4.1.6 Special 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),1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsibility of Subcommi
13、ttee B01.07 onConductors of Light Metals.Current edition approved Oct. 1, 2010. Published December 2010. Originallyapproved in 1963. Last previous edition approved in 2004 as B399/B399M 04.DOI: 10.1520/B0399_B0399M-04R10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact
14、 ASTM Customer 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 Technica
15、l Information Service (NTIS), U.S. Depart-ment of Commerce, 5285 Port Royal Rd., Springfield, VA 22161.5Available from theAluminumAssociation, 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,
16、 United States.4.1.9 Package size and type (see 16.1), and4.1.10 Heavy wood lagging, if required (see 16.4).5. Requirements of Wires5.1 The aluminum-alloy wire used shall conform to therequirements of Specification B398/B398M.6. Joints6.1 In conductors composed of seven wires, only cold-pressure joi
17、nts or electric-butt, cold-upset joints are permittedin 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 sh
18、allbe not closer than prescribed in Table 4. Following 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 sh
19、all be not less than 10 nor more than 16 times thisdiameter.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 o
20、uterlayers. The lay of the layers other than the 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
21、right-handunless specified otherwise by the purchaser.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 shallconfor
22、m to the requirements prescribed in Table 1, Table 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 beslightly compresse
23、d, thereby reducing the outside diameter ofTABLE 1 Construction Requirements of Concentric-Lay-Stranded Aluminum-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 m
24、etric masses which are calculatedfrom the basic metric density.ConductorSizeCodeWordsAApproximateAluminum 1350Size HavingEquivalentResistanceSize and Strandingof ACSR withEqual DiameterRequired Construction MassRatedStrengthNominal dcResistance 20Ccmil mm2SizecmilBAWG mm2Strand-ingNumberofWiresDiame
25、terof WiresClasslb per1000 ftkg perkmkips kNohm per1000 ftohm perkmcmilBAWG mm2in. mm1 439 200 729 1 272 000 . . . 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
26、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 41.0 181 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 5
27、4/7 61 0.1329 3.38 AA 1005 1502 35.0 156 0.01870 0.06120927 200 470 Greeley 795 000 . . . 402.8 795 000 . . . 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 33
28、1 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 0.1012559 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.
29、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 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
30、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 Amherst 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.
31、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 4.27 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 4
32、5.40 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 42.58 1.11 4.92 0.6588 2.159ACode words shown in this column are obtained from, “Publication 50, Code Words for OverheadAluminum Electrical Conductors,” by theAluminumAssociation. Theyare provide
33、d here for information only.BConversion factors: 1 mil = 2.54 E-02 mm1 cmil = 5.067 E-04 mm21 in. = 25.4 mm1 lb/1000 ft = 1.488E+00kg/km1 ft = 3.048 E-01 m1 lb = 4.536 E-01 kg1 lbf = 4.448 E-03 kNB399/B399M 04 (2010)2the conductor by not more than 3 %, provided that the area ofcross section after co
34、mpressing is in accordance with Section12.NOTE 2The 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 th
35、atpercentage, indicated in Table 5 of the sum of the strengths ofthe 6201 wires, calculated on the basis of the nominal wirediameter and the specified minimum average tensile strengthgiven in Specification B398/B398M.9.2 Tests for determining the breaking strength of a conduc-tor are not required by
36、 this specification but may be made ifagreed upon 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 gri
37、pping device, or shall be not less than 95 % of 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, inaccorda
38、nce with the rounding method in Practice E29.10. 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 r
39、esistance of a unit length ofstranded conductor 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
40、4).11.2 The maximum electrical resistance of a 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 gi
41、venin Table 6.11.3 For conductors to be used in 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 otherwi
42、se specifiedTABLE 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 calculatedfrom the ba
43、sic 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 500 000 . . .
44、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 37 0.1470
45、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 3.23 AA, A 55
46、9.1 831.9 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 AA, A 373.
47、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 197.4 294.7 7.
48、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 2.40 10.6 0.
49、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 2.5361B399/B399M 04 (2010)3by the purchaser, the manufacturer may have the option ofdetermining 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
