ASTM B231/B231M-99

Standard Specification for Concentric-Lay-Stranded Aluminum 1350 Conductors

SCOPE
1.1 This specification covers aluminum 1350-H19 (extra hard), 1350-H16 or -H26 ( 3/4 hard), 1350-H14 or -H24 (1/2 hard), and 1350-H142 or -H242 (1/2 hard), bare concentric-lay-stranded conductors constructed with a straight round central wire surrounded by one or more layers of helically layed wires. The conductors are for general use for electrical purposes (Explanatory Notes 1 and 2).  
1.2 The SI values for resistivity are regarded as standard. For all other properties the inch-pound units are regarded as standard and the SI units may be approximate.  Note 1-Prior to 1975, aluminum 1350 was designated as EC aluminum. Note 2-The aluminum and temper designations conform to ANSI Standard H35.1. Aluminum 1350 corresponds to Unified Numbering System A91350 in accordance with Practice E527. Note 3-A complete metric companion to Specification B231 has been developed-Specification B231M. Note 4-Sealed conductors that are intended to prevent longitudinal water propagation and are further covered/insulated are also permitted within the guidelines of this specification.

General Information

• Status: Historical
• Publication Date: 09-Apr-1999
• ICS: 29.240.20 - Power transmission and distribution lines
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.07 - Conductors of Light Metals

Relations

• Replaced By: ASTM B231/B231M-04 - Standard Specification for Concentric-Lay-Stranded Aluminum 1350 Conductors
• Effective Date: 01-Apr-2004
• Referred By: ASTM B400/B400M-19 - Standard Specification for Compact Round Concentric-Lay-Stranded Aluminum 1350 Conductors
• Effective Date: 10-Apr-1999
• Referred By: ASTM B1006-17 - Standard Specification for Electrical Overhead Conductor Code Word Names
• Effective Date: 10-Apr-1999

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: B 231/B 231M – 99
Standard Specification for
Concentric-Lay-Stranded Aluminum 1350 Conductors
This standard is issued under the fixed designation B 231/B 231M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope B 609/B 609M Specification for Aluminum 1350 Round
Wire, Annealed and Intermediate Tempers, for Electrical
1.1 This specification covers aluminum 1350-H19 (extra
3 1 Purposes
hard), 1350-H16 or -H26 ( ⁄4 hard), 1350-H14 or -H24 ( ⁄2
B 682 Specification for Standard Metric Sizes of Electrical
hard), and 1350-H142 or -H242 ( ⁄2 hard), bare concentric-lay-
Conductors
stranded conductors constructed with a straight round central
E 29 Practice for Using Significant Digits in Test Data to
wire surrounded by one or more layers of helically layed wires.
Determine Conformance with Specifications
The conductors are for general use for electrical purposes
E 527 Practice for Numbering Metals and Alloys (UNS)
(Explanatory Note 1 and Note 2).
2.3 ANSI Documents:
1.2 The values stated in inch-pound or SI units are to be
ANSI H35.1 American National Standard Alloy and Tem-
regarded separately as standard. The values in each system are
per Designation System for Aluminum
not exact equivalents; therefore, each system shall be used
ANSI H35.1M American National Standard Alloy and
independently of the other. Combining values from the two
Temper Designation Systems for Aluminum [Metric]
systems may result in nonconformance with the specification.
2.4 NIST Document:
1.2.1 For density, resistivity and temperature, the values
NBS Handbook 100—Copper Wire Tables
stated in SI units are to be regarded as standard.
2.5 Aluminum Association Document:
NOTE 1—Prior to 1975, aluminum 1350 was designated as EC alumi-
Publication 50, Code Words for Overhead Aluminum Elec-
num.
trical Conductors
NOTE 2—The aluminum and temper designations conform to ANSI
Standard H35.1/H35.1M. Aluminum 1350 corresponds to Unified Num-
3. Classification
bering System A91350 in accordance with Practice E 527.
3.1 For the purpose of this specification, conductors are
NOTE 3—Sealed conductors that are intended to prevent longitudinal
water propagation and are further covered/insulated are also permitted
classified as follows (Explanatory Note 1 and Note 2):
within the guidelines of this specification.
3.1.1 Class AA—For bare conductors usually used in over-
head lines.
2. Referenced Documents
3.1.2 Class A—For conductors to be covered with weather-
2.1 The following documents of the issue in effect on date
resistant materials, and for bare conductors where greater
of material purchase form a part of this specification to the
flexibility than is afforded by Class AA is required. Conductors
extent referenced herein:
intended for further fabrication into tree wire or to be insulated
2.2 ASTM Standards:
and laid helically with or around aluminum or ACSR messen-
B 193 Test Method for Resistivity of Electrical Conductor
gers, shall be regarded as Class A conductors with respect to
Materials
direction of lay only (see 7.4).
B 230/B 230M Specification for Aluminum 1350-H19 Wire
3.1.3 Class B—For conductors to be insulated with various
for Electrical Purposes
materials such as rubber, paper, varnished cloth, etc., and for
B 263 Test Method for Determination of Cross-Sectional
the conductors indicated under Class A where greater flexibility
Area of Stranded Conductors
is required.
B 354 Terminology Relating to Uninsulated Metallic Elec-
trical Conductors
Annual Book of ASTM Standards, Vol 14.02.
Annual Book of ASTM Standards, Vol 01.01.
1 5
This specification is under the jurisdiction of ASTM Committee B-1 on Available from American National Standards Institute, 11 West 42nd St., 13th
Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on Floor, New York, NY 10036.
Conductors of Light Metals. Available from the National Technical Information Service, 5285 Port Royal
Current edition approved April 10, 1999. Published June 1999. Originally Rd, Springfield, VA 22161.
published as B 231 – 48 T. Last previous edition B 231 – 95. Available from the Aluminum Association, Inc., 900 19th Street, NW, Suite
Annual Book of ASTM Standards, Vol 02.03. 300, Washington, DC 20006.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B 231/B 231M – 99
3.1.4 Classes C and D—For conductors where greater
flexibility 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 A
NOTE 1—Metric values listed represent a soft conversion and as such they may not be the same as those masses which are calculated from the basic
metric density.
A
Conductor Size Required Construction Mass Rated Strength Recommended Package Sizes
Nominal Nominal
B Diameter of Wire
cmils Number Per Length Mass
Code Per km, Reel
or mm Class of 1000 ft, kips kN of Each of Each
C D
Words kg Designation
AWG Wires lb Piece, Length,
in. mm
B B
ft lb
3 500 000 1 773 Bluebonnet A 127 0.1660 4.22 3 345 4 977 58.7 261 RMT 90.45 2 840 9 530
3 000 000 1 520 Trillium A 127 0.1537 3.90 2 840 4 226 50.3 223 RMT 90.45 3 350 9 530
2 750 000 1 393 Bitterroot A 91 0.1738 4.42 2 602 3 872 46.1 205 RMT 90.45 3 490 9 100
2 500 000 1 267 Lupine A 91 0.1657 4.21 2 365 3 519 41.9 186 RMT 90.45 3 840 9 100
2 250 000 1 140 Sagebrush A 91 0.1572 3.99 2 128 3 166 37.7 167 RMT 90.45 4 270 9 100
2 000 000 1 013 Cowslip A 91 0.1482 3.77 1 873 2 787 34.2 153 RMT 90.45 4 850 9 100
1 750 000 886.7 Jessamine AA 61 0.1694 4.30 1 641 2 442 29.7 132 RMT 90.45 5 940 9 760
1 590 000 805.7 Coreopsis AA 61 0.1614 4.10 1 489 2 216 27.0 120 RMT 90.45 6 540 9 760
RM 68.38 3 270 4 880
1 510 500 765.4 Gladiolus AA, A 61 0.1574 4.00 1 417 2 108 25.6 114 RMT 90.45 6 880 9 760
RM 68.38 3 440 4 880
1 431 000 725.1 Carnation AA, A 61 0.1532 3.89 1 342 1 997 24.3 108 RMT 90.45 7 270 9 760
RM 68.38 3 635 4 880
1 351 000 694.8 Columbine AA, A 61 0.1488 3.78 1 266 1 884 23.4 104 RMT 90.45 7 690 9 760
RM 68.38 3 845 4 880
1 272 000 644.5 Narcissus AA, A 61 0.1444 3.67 1 192 1 774 22.0 98.1 RMT 90.45 8 170 9 760
RM 68.38 4 085 4 880
1 192 500 604.2 Hawthorn AA, A 61 0.1398 3.55 1 117 1 662 21.1 93.5 RMT 90.45 9 340 9 760
RM 68.38 4 360 4 880
1 113 000 564.0 Marigold AA, A 61 0.1351 3.43 1 044 1 553 19.7 87.3 RMT 90.45 9 340 9 760
RM 68.38 4 670 4 880
1 033 500 523.7 Bluebell AA 37 0.1671 4.25 968.4 1 441 17.7 78.8 RMT 84.45 7 630 7 400
RM 66.32 3 815 3 700
NR 48.28 1 910 1 850
1 033 500 523.7 Larkspur A 61 0.1302 3.31 969.2 1 442 18.3 81.3 RMT 90.45 10 060 9 760
RM 68.38 5 030 4 880
1 000 000 506.7 Hawkweed AA 37 0.1644 4.18 937.3 1 395 17.2 76.2 RMT 84.45 7 880 7 400
RM 66.32 3 940 3 700
NR 48.28 1 970 1 850
1 000 000 506.7 Camellia A 61 0.1280 3.25 936.8 1 394 17.7 78.3 RMT 90.45 10 400 9 760
RM 68.38 5 200 4 880
954 000 483.4 Magnolia AA 37 0.1606 4.08 894.5 1 331 16.4 72.6 RMT 84.45 8 260 7 400
RM 66.32 4 130 3 700
NR 48.28 2 065 1 850
954 000 483.4 Goldenrod A 61 0.1251 3.18 894.8 1 331 16.9 75.0 RMT 90.45 10 900 9 760
RM 68.38 5 450 4 880
900 000 456.0 Cockscomb AA 37 0.1560 3.96 844.0 1 256 16.4 68.4 RMT 84.45 8 760 7 400
RM 66.32 4 390 3 700
NR 48.28 2 190 1 850
900 000 456.0 Snapdragon A 61 0.1215 3.09 844.0 1 256 15.9 70.8 RMT 90.45 11 550 9 760
RM 68.38 5 775 4 880
795 00 402.8 Arbutus AA 37 0.1466 3.72 745.3 1 109 13.9 61.8 RMT 84.45 9 920 7 400
RM 66.32 4 960 3 700
NR 48.28 2 480 1 850
795 000 402.8 Lilac A 61 0.1142 2.90 745.7 1 110 14.3 63.8 RMT 90.45 13 080 9 760
RM 68.38 6 540 4 880
750 000 380.0 Petunia AA 37 0.1424 3.62 703.2 1 046 13.1 58.6 RMT 84.45 10 510 7 400
RM 66.32 5 255 3 700
NR 48.28 2 630 1 850
750 000 380.0 Cattail A 61 0.1109 2.82 703.2 1 046 13.5 60.3 RMT 90.45 13 860 9 760
RM 68.38 6 930 4 880
715 500 362.6 Violet AA 37 0.1391 3.53 671 998.5 12.8 56.7 RTM 84.45 11 020 7 400
RM 66.32 5 510 3 700
NR 48.28 2 755 1 850
715 500 362.6 Nasturtium A 61 0.1083 2.75 671 998.5 13.1 58.4 RMT 90.45 14 530 9 760
RM 68.38 7 265 4 880
700 000 354.7 Verbena AA 37 0.1375 3.49 655.7 975.7 12.5 55.4 RMT 84.45 11 260 7 400
RM 66.32 5 630 3 700
NR 48.28 2 815 1 850
B 231/B 231M – 99
TABLE 1 Continued
A
Conductor Size Required Construction Mass Rated Strength Recommended Package Sizes
Nominal Nominal
Diameter of Wire
B
cmils Number Per Length Mass
Code Per km, Reel
or mm Class of 1000 ft, kips kN of Each of Each
C D
Words kg Designation
AWG Wires lb Piece, Length,
in. mm
B B
ft lb
700 000 354.7 Flag A 61 0.1071 2.72 655.8 975.8 12.9 57.1 RMT 90.45 14 850 9 760
RM 68.38 7 425 4 880
650 000 329.4 Heuchera AA 37 0.1326 3.37 609.8 907.4 11.6 51.7 RMT 84.45 12 130 7 400
RM 66.32 6 065 3 700
NR 48.28 3 035 1 850
636 000 322.3 Orchid AA, A 37 0.1311 3.33 596.0 886.9 11.4 50.4 RMT 84.45 12 400 7 400
RM 66.32 6 200 3 700
NR 48.28 3 100 1 850
600 000 304.0 Meadowsweet AA, A 37 0.1273 3.23 562.0 836.3 10.7 47.5 RMT 84.45 13 140 7 400
RM 66.32 6 570 3 700
NR 48.28 3 285 1 850
556 500 282.0 Dahlia AA 19 0.1711 4.35 521.4 775.8 9.75 43.3 RM 66.32 7 270 3 800
NR 48.28 3 635 1 900
NR 42.28 2 425 1 265
556 500 282.0 Mistletoe A 37 0.1226 3.12 521.3 775.7 9.94 44.3 RMT 84.45 14 170 7 400
RM 66.32 7 085 3 700
NR 48.28 3 545 1 850
500 000 253.3 Zinnia AA 19 0.1622 4.12 468.5 697.1 8.76 38.9 RM 66.32 8 100 3 800
NR 48.28 4 050 1 900
NR 42.28 2 700 1 265
500 000 253.3 Hyacinth A 37 0.1162 2.95 468.3 696.8 9.11 40.5 RMT 84.45 15 760 7 400
RM 66.32 7 880 3 700
NR 48.28 3 940 1 850
477 000 241.7 Cosmos AA 19 0.1584 4.02 446.8 664.8 8.36 37.0 RM 66.32 8 490 3 800
NR 48.28 4 245 1 900
NR 42.28 2 830 1 265
477 000 241.7 Syringa A 37 0.1135 2.88 446.8 664.8 8.69 38.6 RMT 84.45 16 530 7 400
RM 66.32 8 265 3 700
NR 48.28 4 135 1 850
450 000 228.0 Goldentuft AA 19 0.1539 3.91 421.8 627.6 7.89 35.0 RM 66.32 9 000 3 800
NR 48.28 4 500 1 900
NR 42.28 3 000 1 265
397 500 201.4 Canna AA, A 19 0.1447 3.67 372.9 554.9 7.11 31.6 RM 66.32 10 180 3 800
NR 48.28 5 090 1 900
NR 42.28 3 395 1 265
350 000 177.3 Daffodil A 19 0.1357 3.45 327.9 487.9 6.39 28.4 RM 66.32 11 560 3 800
NR 48.28 5 780 1 900
NR 42.28 3 855 1 265
336 400 170.5 Tulip A 19 0.1331 3.38 315.5 469.5 6.15 27.3 RM 66.32 12 030 3 800
NR 48.28 6 015 1 900
NR 42.28 4 010 1 265
300 000 152.0 Peony A 19 0.1257 3.19 281.4 418.3 5.48 24.3 RM 66.32 13 490 3 800
NR 48.28 6 745 1 900
NR 42.28 4 495 1 265
266 800 135.2 Daisy AA 7 0.1953 4.96 250.2 372.3 4.83 21.4 NR 42.28 5 590 1 400
NR 36.22 2 795 700
266 800 135.2 Laurel A 19 0.1185 3.01 250.1 372.2 4.97 22.1 RM 66.32 15 170 3 800
NR 48.28 7 585 1 900
NR 42.28 5 055 1 265
250 000 126.7 Sneezewort AA 7 0.1890 4.80 234.4 348.8 4.52 20.1 NR 42.28 5 970 1 400
NR 36.22 2 985 700
250 000 126.7 Valerian A 19 0.1147 2.91 234.3 348.6 4.66 20.7 RM 66.32 16 190 3 800
NR 48.28 8 095 1 900
NR 42.28 5 395 1 265
4/0 107.2 Oxlip AA, A 7 0.1739 4.42 198.4 295.2 3.83 17.0 NR 42.28 7 050 1 400
NR 36.22 3 525 700
3/0 85.0 Phlox AA, A 7 0.1548 3.93 157.2 233.9 3.04 13.5 NR 42.28 8 890 1 400
NR 36.22 4 445 700
2/0 67.4 Aster AA, A 7 0.1379 3.50 124.8 185.7 2.51 11.1 NR 42.28 11 210 1 400
NR 36.22 5 605 700
B 231/B 231M – 99
TABLE 1 Continued
A
Conductor Size Required Construction Mass Rated Strength Recommended Package Sizes
Nominal Nominal
Diameter of Wire
B
cmils Number Per Length Mass
Code Per km, Reel
or mm Class of 1000 ft, kips kN of Each of Each
C D
Words kg Designation
AWG Wires lb Piece, Length,
in. mm
B B
ft lb
1/0 53.5 Poppy AA, A 7 0.1228 3.12 98.9 147.2 1.99 8.84 NR 42.28 14 130 1 400
NR 36.22 7 065 700
1 42.4 Pansy AA, A 7 0.1093 2.78 78.4 116.6 1.64 7.30 NR 42.28 17 830 1 400
NR 36.22 8 915 700
2 33.6 Iris AA, A 7 0.0974 2.47 62.2 92.6 1.35 5.99 NR 42.28 22 470 1 400
NR 36.22 11 235 700
4 21.1 Rose A 7 0.0772 1.96 39.1 58.2 0.881 3.91 NR 42.28 35 710 1 400
NR 36.22 17 855 700
6 13.3 Peachbell A 7 0.0612 1.56 24.6 36.6 0.563 2.53 NR 42.28 56 910 1 400
NR 36.22 28 455 700
A
For information only.
B 2
Conversion factors: 1 cmil = 5.067 E-04 mm , 1 mil + 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-03
kN.
C
Code words shown in this column are from, “Publication 50, Code Words for Overhead Aluminum Electrical Conductors,” by the Aluminum Association. They are
provided here for information only.
D
See Table 9 for dimensions of standard reels.
4. Ordering Information 5.2 Before stranding, the aluminum wire used shall meet the
requirements of Specifications B 230/B 230M or B 609/
4.1 Orders for material under this specification shall include
B 609M, whichever is applicable.
the following information:
5.3 All wires in the conductor shall be of the same temper.
4.1.1 Quantity,
4.1.2 Conductor size: square millimetres, if cross-sectional
6. Joints
area is specified as a requirement (Section 8 and Tables 1-4),
6.1 Only cold-pressure joints or electric-butt, cold-upset
4.1.2.1 Conductor size, number and diameter of wires for
joints may be made in the six outer finished wires of (1) Class
Class B, C, or D conductors, if cross-sectional area is not
AA conductors composed of seven wires or (2) Class A
specified as a requirement (see 8.2),
conductors composed of seven wires used in overhead lines. In
4.1.3 Class (see 3.1),
other conductors, electric-butt welds, cold-pressure welds, or
4.1.4 Temper (see 5.1),
electric-butt, cold-upset welds may be made in the finished
4.1.5 Details of special-purpose lays, when required (see 7.2
wires composing conductors, but such welds shall not be closer
through 7.5),
than prescribed in Table 5 (Explanatory Note 3).
4.1.6 Special tension tests if required (see 14.1 and 15.1),
7. Lay
4.1.7 Package size and type (see 17.1 and Table 1 or Table
7.1 For Class AA conductors composed of seven wires or
2),
more the preferred lay of a layer of wires is 13.5 times the
4.1.8 Special package marking, if required (Section 19),
outside diameter of that layer, but the lay shall be not less than
4.1.9 Heavy wood lagging if required (see 18.2),
10 nor more than 16 times this diameter.
4.1.10 Place of inspection (Section 17), and
7.2 For all other classes the lay of a layer of wires shall be
4.1.11 Method of cross-sectional area determination if not
not less than 8 nor more than 16 times the outside diameter of
optio
...