1、Designation: B231/B231M 11Standard Specification forConcentric-Lay-Stranded Aluminum 1350 Conductors1This standard is issued under the fixed designation B231/B231M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last r
2、evision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers aluminum 1350-H19
3、 (extrahard), 1350-H16 or -H26 (34 hard), 1350-H14 or -H24 (12hard), and 1350-H142 or -H242 (12 hard), bare concentric-lay-stranded conductors constructed with a straight round centralwire surrounded by one or more layers of helically layed wires.The conductors are for general use for electrical pur
4、poses(Explanatory Note 1 and Note 2).1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two syste
5、ms may result in non-conformancewith the standard.1.2.1 For density, resistivity and temperature, the valuesstated in SI units are to be regarded as standard.NOTE 1Prior to 1975, aluminum 1350 was designated as EC alumi-num.NOTE 2The aluminum and temper designations conform to ANSIStandard H35.1/H35
6、.1M. Aluminum 1350 corresponds to Unified Num-bering System A91350 in accordance with Practice E527.NOTE 3Sealed conductors that are intended to prevent longitudinalwater propagation and are further covered/insulated are also permittedwithin the guidelines of this specification.2. Referenced Documen
7、ts2.1 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 1350H19 Wirefor Electrical Purp
8、osesB263 Test Method for Determination of Cross-SectionalArea of Stranded ConductorsB354 Terminology Relating to Uninsulated Metallic Elec-trical ConductorsB609/B609M Specification for Aluminum 1350 RoundWire, Annealed and Intermediate Tempers, for ElectricalPurposesB682 Specification for Metric Siz
9、es of Electrical Conduc-torsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)2.3 ANSI Documents:3ANSI H35.1 American National Standard Alloy and Tem-per Designation Syst
10、em for AluminumANSI H35.1M American National Standard Alloy andTemper Designation Systems for Aluminum Metric2.4 NIST Document:4NBS Handbook 100Copper Wire Tables2.5 Aluminum Association Document:5Publication 50, Code Words for Overhead Aluminum Elec-trical Conductors3. Classification3.1 For the pur
11、pose of this specification, conductors areclassified as follows (Explanatory Note 1 and Note 2):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, and for bare conductors where greaterflexibility than is affor
12、ded by ClassAAis required. Conductorsintended for further fabrication into tree wire or to be insulated1This 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 appr
13、oved April 1, 2011. Published May 2011. Originallyapproved in 1948. Last previous edition approved in 2004 as B231/B231M 04.DOI: 10.1520/B0231_B0231M-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMSt
14、andards 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 Information Service (NTIS), U.S. Depart-ment of Commerce, 5285 Por
15、t Royal Rd., Springfield, VA 22161.5Available from the Aluminum Association, Inc., 900 19th Street, NW, Suite300, Washington, DC 20006.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.and laid helically with or around aluminum or ACSR
16、 messen-gers, shall be regarded as Class A conductors with respect todirection of lay only (see 7.4).3.1.3 Class BFor conductors to be insulated with variousmaterials such as rubber, paper, varnished cloth, and so forth,and for the conductors indicated under Class A where greaterflexibility is requi
17、red.3.1.4 Classes C and DFor conductors where greaterflexibility is required than is provided by Class B conductors.TABLE 1 Construction Requirements and Recommended Reel Sizes and Shipping Lengths of Aluminum Conductors, Concentric-Lay-Stranded, Class AA, and Class ANOTE 1Metric values listed repre
18、sent a soft conversion and as such they may not be the same as those masses which are calculated from the basicmetric density.Conductor Size Required Construction Mass Rated Strength Recommended Package SizesAcmilsBorAWGmm2CodeWordsCClassNumberofWiresDiameter of WirePer1000 ft,lbPer km,kgkips kNReel
19、DesignationDNominalLengthof EachPiece,ftBNominalMassof EachLength,lbBin. mm3 500 000 1773 Bluebonnet A 127 0.1660 4.22 3345 4977 58.7 261 RMT 90.45 2840 95303 000 000 1520 Trillium A 127 0.1537 3.90 2840 4226 50.3 223 RMT 90.45 3350 95302 750 000 1393 Bitterroot A 91 0.1738 4.42 2602 3872 46.1 205 R
20、MT 90.45 3490 91002 500 000 1267 Lupine A 91 0.1657 4.21 2365 3519 41.9 186 RMT 90.45 3840 91002 250 000 1140 Sagebrush A 91 0.1572 3.99 2128 3166 37.7 167 RMT 90.45 4270 91002 000 000 1013 Cowslip A 91 0.1482 3.77 1873 2787 34.2 153 RMT 90.45 4850 91001 750 000 886.7 Jessamine AA 61 0.1694 4.30 164
21、1 2442 29.7 132 RMT 90.45 5940 97601 590 000 805.7 Coreopsis AA 61 0.1614 4.10 1489 2216 27.0 120 RMT 90.45RM 68.3865403270976048801 510 500 765.4 Gladiolus AA, A 61 0.1574 4.00 1417 2108 25.6 114 RMT 90.45RM 68.3868803440976048801 431 000 725.1 Carnation AA, A 61 0.1532 3.89 1342 1997 24.3 108 RMT
22、90.45RM 68.3872703635976048801 351 000 694.8 Columbine AA, A 61 0.1488 3.78 1266 1884 23.4 104 RMT 90.45RM 68.3876903845976048801 272 000 644.5 Narcissus AA, A 61 0.1444 3.67 1192 1774 22.0 98.1 RMT 90.45RM 68.3881704085976048801 192 500 604.2 Hawthorn AA, A 61 0.1398 3.55 1117 1662 21.1 93.5 RMT 90
23、.45RM 68.3893404360976048801 113 000 564.0 Marigold AA, A 61 0.1351 3.43 1044 1553 19.7 87.3 RMT 90.45RM 68.3893404670976048801 033 500 523.7 Bluebell AA 37 0.1671 4.25 968.4 1441 17.7 78.8 RMT 84.45RM 66.32NR 48.287630381519107400370018501 033 500 523.7 Larkspur A 61 0.1302 3.31 969.2 1442 18.3 81.
24、3 RMT 90.45RM 68.3810 0605030976048801 000 000 506.7 Hawkweed AA 37 0.1644 4.18 937.3 1395 17.2 76.2 RMT 84.45RM 66.32NR 48.287880394019707400370018501 000 000 506.7 Camellia A 61 0.1280 3.25 936.8 1394 17.7 78.3 RMT 90.45RM 68.3810 400520097604880954 000 483.4 Magnolia AA 37 0.1606 4.08 894.5 1331
25、16.4 72.6 RMT 84.45RM 66.32NR 48.28826041302065740037001850954 000 483.4 Goldenrod A 61 0.1251 3.18 894.8 1331 16.9 75.0 RMT 90.45RM 68.3810 900545097604880900 000 456.0 Cockscomb AA 37 0.1560 3.96 844.0 1256 16.4 68.4 RMT 84.45RM 66.32NR 48.28876043902190740037001850900 000 456.0 Snapdragon A 61 0.
26、1215 3.09 844.0 1256 15.9 70.8 RMT 90.45RM 68.3811 550577597604880795 00 402.8 Arbutus AA 37 0.1466 3.72 745.3 1109 13.9 61.8 RMT 84.45RM 66.32NR 48.28992049602480740037001850795 000 402.8 Lilac A 61 0.1142 2.90 745.7 1110 14.3 63.8 RMT 90.45RM 68.3813 080654097604880750 000 380.0 Petunia AA 37 0.14
27、24 3.62 703.2 1046 13.1 58.6 RMT 84.45RM 66.32NR 48.2810 51052552630740037001850750 000 380.0 Cattail A 61 0.1109 2.82 703.2 1046 13.5 60.3 RMT 90.45RM 68.3813 860693097604880715 500 362.6 Violet AA 37 0.1391 3.53 671 998.5 12.8 56.7 RTM 84.45RM 66.32NR 48.2811 02055102755740037001850B231/B231M 112T
28、ABLE 1 ContinuedConductor Size Required Construction Mass Rated Strength Recommended Package SizesAcmilsBorAWGmm2CodeWordsCClassNumberofWiresDiameter of WirePer1000 ft,lbPer km,kgkips kNReelDesignationDNominalLengthof EachPiece,ftBNominalMassof EachLength,lbBin. mm715 500 362.6 Nasturtium A 61 0.108
29、3 2.75 671 998.5 13.1 58.4 RMT 90.45RM 68.3814 530726597604880700 000 354.7 Verbena AA 37 0.1375 3.49 655.7 975.7 12.5 55.4 RMT 84.45RM 66.32NR 48.2811 26056302815740037001850700 000 354.7 Flag A 61 0.1071 2.72 655.8 975.8 12.9 57.1 RMT 90.45RM 68.3814 850742597604880650 000 329.4 Heuchera AA 37 0.1
30、326 3.37 609.8 907.4 11.6 51.7 RMT 84.45RM 66.32NR 48.2812 13060653035740037001850636 000 322.3 Orchid AA, A 37 0.1311 3.33 596.0 886.9 11.4 50.4 RMT 84.45RM 66.32NR 48.2812 40062003100740037001850600 000 304.0 Meadowsweet AA, A 37 0.1273 3.23 562.0 836.3 10.7 47.5 RMT 84.45RM 66.32NR 48.2813 140657
31、03285740037001850556 500 282.0 Dahlia AA 19 0.1711 4.35 521.4 775.8 9.75 43.3 RM 66.32NR 48.28NR 42.28727036352425380019001265556 500 282.0 Mistletoe A 37 0.1226 3.12 521.3 775.7 9.94 44.3 RMT 84.45RM 66.32NR 48.2814 17070853545740037001850500 000 253.3 Zinnia AA 19 0.1622 4.12 468.5 697.1 8.76 38.9
32、 RM 66.32NR 48.28NR 42.28810040502700380019001265500 000 253.3 Hyacinth A 37 0.1162 2.95 468.3 696.8 9.11 40.5 RMT 84.45RM 66.32NR 48.2815 76078803940740037001850477 000 241.7 Cosmos AA 19 0.1584 4.02 446.8 664.8 8.36 37.0 RM 66.32NR 48.28NR 42.28849042452830380019001265477 000 241.7 Syringa A 37 0.
33、1135 2.88 446.8 664.8 8.69 38.6 RMT 84.45RM 66.32NR 48.2816 53082654135740037001850450 000 228.0 Goldentuft AA 19 0.1539 3.91 421.8 627.6 7.89 35.0 RM 66.32NR 48.28NR 42.28900045003000380019001265397 500 201.4 Canna AA, A 19 0.1447 3.67 372.9 554.9 7.11 31.6 RM 66.32NR 48.28NR 42.2810 18050903395380
34、019001265350 000 177.3 Daffodil A 19 0.1357 3.45 327.9 487.9 6.39 28.4 RM 66.32NR 48.28NR 42.2811 56057803855380019001265336 400 170.5 Tulip A 19 0.1331 3.38 315.5 469.5 6.15 27.3 RM 66.32NR 48.28NR 42.2812 03060154010380019001265300 000 152.0 Peony A 19 0.1257 3.19 281.4 418.3 5.48 24.3 RM 66.32NR
35、48.28NR 42.2813 49067454495380019001265266 800 135.2 Daisy AA 7 0.1953 4.96 250.2 372.3 4.83 21.4 NR 42.28NR 36.22559027951400700266 800 135.2 Laurel A 19 0.1185 3.01 250.1 372.2 4.97 22.1 RM 66.32NR 48.28NR 42.2815 17075855055380019001265250 000 126.7 Sneezewort AA 7 0.1890 4.80 234.4 348.8 4.52 20
36、.1 NR 42.28NR 36.22597029851400700250 000 126.7 Valerian A 19 0.1147 2.91 234.3 348.6 4.66 20.7 RM 66.32NR 48.28NR 42.2816 190809553953800190012654/0 107.2 Oxlip AA, A 7 0.1739 4.42 198.4 295.2 3.83 17.0 NR 42.28NR 36.227050352514007003/0 85.0 Phlox AA, A 7 0.1548 3.93 157.2 233.9 3.04 13.5 NR 42.28
37、NR 36.228890444514007002/0 67.4 Aster AA, A 7 0.1379 3.50 124.8 185.7 2.51 11.1 NR 42.28NR 36.2211 21056051400700B231/B231M 113TABLE 1 ContinuedConductor Size Required Construction Mass Rated Strength Recommended Package SizesAcmilsBorAWGmm2CodeWordsCClassNumberofWiresDiameter of WirePer1000 ft,lbPe
38、r km,kgkips kNReelDesignationDNominalLengthof EachPiece,ftBNominalMassof EachLength,lbBin. mm1/0 53.5 Poppy AA, A 7 0.1228 3.12 98.9 147.2 1.99 8.84 NR 42.28NR 36.2214 130706514007001 42.4 Pansy AA, A 7 0.1093 2.78 78.4 116.6 1.64 7.30 NR 42.28NR 36.2217 830891514007002 33.6 Iris AA, A 7 0.0974 2.47
39、 62.2 92.6 1.35 5.99 NR 42.28NR 36.2222 47011 23514007004 21.1 Rose A 7 0.0772 1.96 39.1 58.2 0.881 3.91 NR 42.28NR 36.2235 71017 85514007006 13.3 Peachbell A 7 0.0612 1.56 24.6 36.6 0.563 2.53 NR 42.28NR 36.2256 91028 4551400700AFor information only.BConversion factors: 1 cmil = 5.067 E-04 mm2, 1 m
40、il + 2.54 E-02 mm, 1 lb/1000 ft = 1.488 E+00 kg/km, 1 ft = 3.048 E-01 m, l lb = 4.536 E-01 kg, 1 lbf = 4.448 E-03kN.CCode words shown in this column are from, “Publication 50, Code Words for Overhead Aluminum Electrical Conductors,” by the Aluminum Association. Theyareprovided here for information o
41、nly.DSee Table 9 for dimensions of standard reels.4. Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 Quantity,4.1.2 Conductor size: square millimetres, if cross-sectionalarea is specified as a requirement (Section 8 and Tables 1-4),4.
42、1.2.1 Conductor size, number, and diameter of wires forClass B, C, or D conductors, if cross-sectional area is notspecified as a requirement (see 8.2),4.1.3 Class (see 3.1),4.1.4 Temper (see 5.1),4.1.5 Details of special-purpose lays, when required (see 7.2through 7.5),4.1.6 Special tension tests if
43、 required (see 14.1 and 15.1),4.1.7 Package size and type (see 17.1 and Table 1 or Table2),4.1.8 Special package marking, if required (Section 19),4.1.9 Heavy wood lagging, if required (see 18.2),4.1.10 Place of inspection (Section 17), and4.1.11 Method of cross-sectional area determination if notop
44、tional (see 12.1).5. Requirements for Wires5.1 Aluminum wire employed in ClassesAAandAconduc-tors shall be 1350-H19, unless otherwise specified. The pur-chaser shall designate the temper of conductors of Classes B,C, and D.5.1.1 For conductor tempers other than 1350-H19, whentemper designations are
45、not more specific in the inquiry andpurchase order, the manufacturer shall have the followingoptions on manufacturing method:5.1.1.1 Strand the conductor from wires drawn to finaltemper;5.1.1.2 Strand the conductor from wires drawn to H19temper and annealed to final temper prior to stranding;5.1.1.3
46、 Strand the conductor from 1350-H19 wires andanneal the stranded conductor to final temper.5.2 Before stranding, the aluminum wire used shall meet therequirements of Specifications B230/B230M or B609/B609M,whichever is applicable.5.3 All wires in the conductor shall be of the same temper.6. Joints6.
47、1 Only cold-pressure joints or electric-butt, cold-upsetjoints may be made in the six outer finished wires of (1) ClassAA conductors composed of seven wires or (2) Class Aconductors composed of seven wires used in overhead lines. Inother conductors, electric-butt welds, cold-pressure welds, orelectr
48、ic-butt, cold-upset welds may be made in the finishedwires composing conductors, but such welds shall not be closerthan prescribed in Table 5 (Explanatory Note 3).7. Lay7.1 For Class AA conductors composed of seven wires ormore, the preferred lay of a layer of wires is 13.5 times theoutside diameter
49、 of that layer, but the lay shall be not less than10 nor more than 16 times this diameter.7.2 For all other classes the lay of a layer of wires shall benot less than 8 nor more than 16 times the outside diameter ofthat layer, except that for conductors composed of 37 wires ormore, this requirement shall apply only to the two outer layers.The lay of the layers other than the two outer layers shall be atthe option of the manufacturer, unless otherwise agreed upon.7.2.1 For conductors to be used in covered or insulatedwires or cables, the lay length of the wires shall
