ASTM B549-00

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Designation: B 549 – 00
Standard Specification for
Concentric-Lay-Stranded Aluminum Conductors, Aluminum-
Clad Steel Reinforced (ACSR/AW)
This standard is issued under the fixed designation B 549; 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.
1. Scope NBS Handbook 100—Copper Wire Tables of the National
Bureau of Standards
1.1 This specification covers concentric-lay-stranded con-
ductors made from round aluminum 1350-H19 (extra hard)
3. Terminology
aluminum wires and round aluminum-clad steel core wires for
3.1 Description of Terms Specific to This Standard
use as overhead electrical conductors (Explanatory Note 1 and
3.1.1 ACSR covered by this specification has one type of
Note 2).
steel core wire which is designated by the following abbrevia-
1.2 The SI values of density and resistivity are to be
tion (Explanatory Note 2):
regarded as standard. For all other properties the inch-pound
3.1.1.1 ACSR/AW—ACSR using aluminum-clad steel wire
units are regarded as standard and the SI units may be
(Explanatory Note 2).
approximate.
4. Classification
2. Referenced Documents
4.1 For the purpose of this specification, conductors are
2.1 The following documents of the issue in effect on date
classified as follows (Explanatory Note 1 and Note 2):
of material purchase form a part of this specification to the
4.1.1 Class AA—For bare conductors usually used in over-
extent referenced herein.
head lines. These conductors are used as follows:
2.2 ASTM Standards:
4.1.1.1 Conductors used for regular overhead line construc-
B 230 Specification for Aluminum 1350-H19 Wire for Elec-
2 tion and
trical Purposes
4.1.1.2 Conductors having a high ratio of mechanical
B 263 Test Method for Determination of Cross-Sectional
2 strength to current-carrying capacity used for overhead ground
Area of Stranded Conductors
wires and for extra-long span construction.
B 354 Terminology Relating to Uninsulated Metallic Elec-
2 4.1.2 Class A—For conductors to be covered with weather-
trical Conductors
resistant (weatherproof) materials.
B 502 Specification for Aluminum-Clad Steel Core Wire for
Aluminum Conductors, Aluminum-Clad Steel Reinforced
5. Ordering Information
E 29 Practice for Using Significant Digits in Test Data to
5.1 Orders for material under this specification shall include
Determine Conformance with Specifications
4 the following information:
2.3 ANSI Standards:
5.1.1 Quantity of each size, stranding, and class,
ANSI C 42.100 Dictionary of Electrical and Electronics
5.1.2 Conductor size: circular mil area or AWG of alumi-
Terms
num wires (Section 9 and Table 1),
ANSI H 35.1 American National Standard Alloy and Tem-
5.1.3 Number of wires, aluminum and aluminum-clad steel
per Designation Systems for Aluminum
(Table 1),
2.4 Other Standard:
5.1.4 Direction of lay of outer layer of aluminum wires if
other than right-hand (see 8.2),
5.1.5 Special tests, if required (see 15.3 and 15.5),
This specification is under the jurisdiction of ASTM Committee B-1 on
Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on
5.1.6 Package size (see 17.1 and Explanatory Note 5),
Conductors of Light Metals.
5.1.7 Special package marking, if required (Section 17),
Current edition approved April 10, 2000. Published June 2000. Originally
5.1.8 Lagging, if required (see 17.3), and
published as B 549 – 71. Last previous edition B 549 – 93.
Annual Book of ASTM Standards, Vol 02.03.
Annual Book of ASTM Standards, Vol 14.02.
4 5
Available from the American National Standards Institute, 11 West 42nd St., Available from the National Technical Information Service, 5285 Port Royal
13th Floor, New York, NY 10036. Rd., Springfield, VA 22161.
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B 549
5.1.9 Place of inspection (Section 16). wires composing the conductor may be made during the
stranding process. No weld shall occur within 50 ft (15 m) of
6. Requirement for Wires
a weld in the same wire or in any other wire of the completed
6.1 Before stranding, the aluminum wires used shall meet
conductor (Explanatory Note 1).
all the requirements of Specification B 230.
7.2 There shall be no joints of any kind made in the finished
6.2 Before stranding, the aluminum-clad steel core wires
aluminum-clad steel wires.
used shall meet all the requirements of Specification B 502.
7. Joints
7.1 Electric-butt welds, cold-pressure welds, or electric-
butt, cold-upset welds in the finished individual aluminum
A
TABLE 1 Construction Requirements of Concentric-Lay-Stranded Aluminum Conductors, Aluminum-Clad Steel Reinforced
NOTE 1—The size in boldface indicate more commonly used sizes. (+) indicates conductors with high strength to current capacity ratios.
Conductor Size (Aluminum Wire) Stranding Rated Strength Mass per Unit
Length
Aluminum Aluminum-Clad Steel
Nominal Diameter Nominal Diameter kip
Number of Number of
cmil Code Name AWG mm Class (1000
Wires Wires
in. mm in. mm lbf) kN lb/1000 ft kg/km
2312000 Thrasher/AW . . . 1171.49 AA 76 0.1744 4.4298 19 0.0814 2.068 55.3 246.0 2472 3679
2167000 Kiwi/AW . . . 1098.02 AA 72 0.0174 0.4407 7 0.1157 2.939 49.1 218.4 2262 3366
2156000 Bluebird/AW . . . 1092.45 AA 84 0.1602 4.0691 19 0.0961 2.441 59.0 262.4 2437 3627
1780000 Chukar/AW . . . 901.93 AA 84 0.1456 3.6982 19 0.0874 2.220 49.4 219.7 2013 2996
1590000 Falcon/AW . . . 805.65 AA 54 0.1716 4.3586 19 0.1030 2.616 53.0 235.7 1960 2917
1590000 Lapwing/AW . . . 805.65 AA 45 0.1880 4.7752 7 0.1253 3.183 41.8 185.9 1746 2598
1510500 Parrot/AW . . . 765.37 AA 54 0.1672 4.2469 19 0.1003 2.548 50.3 223.7 1860 2768
1510500 Nuthatch/AW . . . 765.37 AA 45 0.1832 4.6533 7 0.1221 3.101 39.7 176.8 1658 2467
1431000 Plover/AW . . . 725.09 AA 54 0.1628 4.1351 19 0.0977 2.482 47.7 212.2 1764 2625
1431000 Bobolink/AW . . . 725.09 AA 45 0.1783 4.5288 7 0.1189 3.020 37.6 167.2 1570 2336
1351500 Martin/AW . . . 684.81 AA 54 0.1582 4.0183 19 0.0949 2.410 45.1 200.6 1665 2478
1351500 Dipper/AW . . . 684.81 AA 45 0.1733 4.4018 7 0.1155 2.934 35.5 157.9 1483 2207
1272000 Pheasant/AW . . . 644.52 AA 54 0.1535 3.8989 19 0.0921 2.339 42.4 188.6 1568 2333
1272000 Bittern/AW . . . 644.52 AA 45 0.1681 4.2697 7 0.1121 2.847 33.4 148.6 1396 2078
1272000 Skylark/AW . . . 644.52 AA 36 0.1880 4.7752 1 0.1880 4.775 25.7 114.3 1272 1893
1192500 Grackle/AW . . . 604.24 AA 54 0.1486 3.7744 19 0.0892 2.266 40.2 178.8 1470 2188
1192500 Bunting/AW . . . 604.24 AA 45 0.1628 4.1351 7 0.1085 2.756 31.3 139.2 1309 1948
1113000 Finch/AW . . . 563.96 AA 54 0.1436 3.6474 19 0.0862 2.189 37.5 166.8 1373 2043
1113000 Bluejay/AW . . . 563.96 AA 45 0.1573 3.9954 7 0.1049 2.664 29.3 130.3 1222 1819
1033500 Curlew/AW . . . 523.67 AA 54 0.1383 3.5128 7 0.1383 3.513 35.6 158.3 1274 1896
1033500 Ortolan/AW . . . 523.67 AA 45 0.1515 3.8481 7 0.1010 2.565 27.1 120.5 1134 1688
1033500 Tanager/AW . . . 523.67 AA 36 0.1694 4.3028 1 0.1694 4.303 21.1 93.9 1033 1537
954000 Cardinal/AW . . . 483.39 AA 54 0.1329 3.3757 7 0.1329 3.376 32.9 146.3 1177 1752
954000 Rail/AW . . . 483.39 AA 45 0.1456 3.6982 7 0.0971 2.466 25.4 113.0 1047 1558
954000 Catbrid/AW . . . 483.39 AA 36 0.1628 4.1351 1 0.1628 4.135 19.5 86.7 954 1420
900000 Canary/AW . . . 456.03 AA 54 0.1291 3.2791 7 0.1291 3.279 31.0 137.9 1111 1653
900000 Ruddy/AW . . . 456.03 AA 45 0.1414 3.5916 7 0.0943 2.395 24.0 106.8 988 1470
795000 Mallary/AW . . . 402.83 AA 30 0.1628 4.1351 19 0.0977 2.482 37.1 165.0 1160 1726
795000 Condor/AW . . . 402.83 AA 54 0.1213 3.0810 7 0.1213 3.081 27.8 123.7 980 1458
795000 Tern/AW . . . 402.83 AA 45 0.1329 3.3757 7 0.0886 2.250 21.5 95.6 872 1298
795000 Drake/AW . . . 402.83 AA 26 0.1749 4.4425 7 0.1360 3.454 30.5 135.7 1041 1549
795000 Cuckoo/AW . . . 402.83 AA 24 0.1820 4.6228 7 0.1213 3.081 27.5 122.3 981 1460
795000 Coot/AW . . . 402.83 AA 36 0.1486 3.7744 1 0.1486 3.774 16.6 73.8 795 1183
715500 Redwing/AW . . . 362.54 AA 30 0.1544 3.9218 19 0.0926 2.352 33.4 148.6 1043 1552
715500 Starling/AW . . . 362.54 AA 26 0.1659 4.2139 7 0.1290 3.277 27.5 122.3 936 1393
715500 Stilt/AW . . . 362.54 AA 24 0.1727 4.3866 7 0.1151 2.924 24.8 110.3 883 1314
666600 Gannet/AW . . . 337.77 AA 26 0.1601 4.0665 7 0.1245 3.162 26.0 115.6 872 1298
666600 Flamingo/AW . . . 337.77 AA 24 0.1667 4.2342 7 0.1111 2.822 23.1 102.7 823 1225
636000 Egret/AW . . . 322.26 AA 30 0.1456 3.6982 19 0.0874 2.220 29.9 133.0 928 1381
636000 Sooter/AW . . . 322.26 AA 30 0.1456 3.6982 7 0.1456 3.698 29.3 130.3 935 1391
636000 Grosbeak/AW . . . 322.26 AA 26 0.1564 3.9726 7 0.1216 3.089 24.8 110.3 832 1238
636000 Rook/AW . . . 322.26 AA 24 0.1628 4.1351 7 0.1085 2.756 22.0 97.9 785 1168
636000 Swift/AW . . . 322.26 AA 36 0.1329 3.3757 1 0.1329 3.376 13.6 60.5 636 946
B 549
TABLE 1 Continued
Conductor Size (Aluminum Wire) Stranding Rated Strength Mass per Unit
Length
Aluminum Aluminum-Clad Steel
Nominal Diameter Nominal Diameter kip
Number of Number of
cmil Code Name AWG mm Class (1000
Wires Wires
in. mm in. mm lbf) kN lb/1000 ft kg/km
636000 Kingbird/AW . . . 322.26 AA 18 0.1880 4.7752 1 0.1880 4.775 15.0 66.7 676 1006
605000 Teal/AW . . . 306.55 AA 30 0.1420 3.6068 19 0.0852 2.164 28.5 126.8 883 1314
605000 Wood Duck/AW . . . 306.55 AA 30 0.1420 3.6068 7 0.1420 3.607 28.4 126.3 889 1323
605000 Squab/AW . . . 306.55 AA 26 0.1525 3.8735 7 0.1186 3.012 23.6 105.0 791 1177
605000 Peacock/AW . . . 306.55 AA 24 0.1588 4.0335 7 0.1059 2.690 21.0 93.4 747 1112
556500 Eagle/AW . . . 281.98 AA 30 0.1362 3.4595 7 0.1362 3.459 26.8 119.2 818 1217
556500 Dove/AW . . . 281.98 AA 26 0.1463 3.7160 7 0.1138 2.891 21.9 97.4 728 1083
556500 Parakeet/AW . . . 281.98 AA 24 0.1523 3.8684 7 0.1015 2.578 19.3 85.8 687 1022
556500 Ospray/AW . . . 281.98 AA 18 0.1758 4.4653 1 0.1758 4.465 13.2 58.7 591 880
477000 Hen/AW . . . 241.70 AA 30 0.1261 3.2029 7 0.1261 3.203 23.4 104.1 701 1043
477000 Hawk/AW . . . 241.70 AA 26 0.1354 3.4392 7 0.1053 2.675 18.9 84.1 624 929
477000 Flicker/AW . . . 241.70 AA 24 0.1410 3.5814 7 0.0940 2.388 16.7 74.3 589 877
477000 Pelican/AW . . . 241.70 AA 18 0.1628 4.1351 1 0.1628 4.135 11.5 51.2 507 755
397500 Lark/AW . . . 201.41 AA 30 0.1151 2.9235 7 0.1151 2.924 19.6 87.2 584 869
397500 Ibls/AW . . . 201.41 AA 26 0.1236 3.1394 7 0.0961 2.441 15.8 70.3 520 774
397500 Brant/AW . . . 201.41 AA 24 0.1287 3.2690 7 0.0858 2.179 14.1 62.7 491 731
397500 Chickadee/AW . . . 201.41 AA 18 0.1486 3.7744 1 0.1486 3.774 9.8 43.5 422 628
336400 Oriole/AW . . . 170.45 AA 30 0.1059 2.6899 7 0.1059 2.690 16.7 74.3 495 737
336400 Linnet/AW . . . 170.45 AA 26 0.1137 2.8880 7 0.0884 2.245 13.5 60.0 440 655
336400 Merlin/AW . . . 170.45 AA 18 0.1367 3.4722 1 0.1367 3.472 8.5 38.0 357 531
300000 Ostrich/AW . . . 152.01 AA 26 0.1074 2.7280 7 0.0835 2.121 12.1 53.8 392 583
266800 Partridge/AW . . . 135.19 AA 26 0.1013 2.5730 7 0.0788 2.002 10.8 48.0 349 519
266800 Waxwing/AW . . . 135.19 AA 18 0.1217 3.0912 1 0.1217 3.091 6.8 30.3 283 421
211600 Penguin/AW 0000 107.22 AA,A 6 0.1878 4.7701 1 0.1878 4.770 7.7 34.2 277 412
211300 0000 107.07 AA(+) 12 0.1327 3.3706 7 0.1327 3.371 19.8 88.1 477 710
203200 0000 102.96 AA(+) 16 0.1127 2.8626 19 0.0977 2.482 27.1 120.5 601 894
190800 0000 96.68 AA(+) 12 0.1261 3.2029 7 0.1261 3.203 18.3 81.4 431 641
176900 0000 89.64 AA(+) 12 0.1214 3.0836 7 0.1214 3.084 16.9 75.2 399 594
167800 Pigeon/AW 000 85.02 AA,A 6 0.1672 4.2469 1 0.1672 4.247 6.3 28.0 219 326
159000 000 80.57 AA(+) 12 0.1151 2.9235 7 0.1151 2.924 15.3 68.1 359 534
152500 000 77.27 AA(+) 5 0.1747 4.4374 2 0.1747 4.437 9.7 43.0 281 418
141300 000 71.60 AA(+) 4 0.1880 4.7752 3 0.1880 4.775 14.2 63.2 373 555
134600 000 68.20 AA(+) 12 0.1059 2.6899 7 0.1059 2.690 13.0 57.8 304 452
133100 Quail/AW 00 67.44 AA,A 6 0.1489 3.7821 1 0.1489 3.782 5.1 22.8 174 259
121000 00 61.31 AA(+) 5 0.1556 3.9522 2 0.1556 3.952 8.0 35.7 223 332
112100 00 56.80 AA(+) 4 0.1674 4.2520 3 0.1674 4.252 11.9 52.9 296 441
110800 00 56.14 AA(+) 12 0.0961 2.4409 7 0.0961 2.441 10.8 48.0 250 372
105600 Raven/AW 0 53.51 AA,A 6 0.1327 3.3706 1 0.1327 3.371 4.3 18.9 138 205
101800 0 51.58 AA(+) 12 0.0921 2.3393 7 0.0921 2.339 9.9 44.1 230 342
99830 0 50.58 AA(+) 3 0.1824 4.6330 4 0.1824 4.633 16.4 72.9 395 588
95910 0 48.60 AA(+) 5 0.1385 3.5179 2 0.1385 3.518 6.6 29.3 177 263
88840 0 45.02 AA(+) 4 0.1429 3.6297 3 0.1490 3.785 9.7 43.1 234 348
83690 Robin/AW 1 42.41 AA,A 6 0.1181 2.9997 1 0.1181 3.000 3.5 15.3 109 162
80000 1 40.54 AA(+) 8 0.1000 2.5400 1 0.1670 4.242 4.9 21.8 138 205
79130 1 40.10 AA(+) 3 0.1624 4.1250 4 0.1624 4.125 13.8 61.4 313 466
76080 1 38.55 AA(+) 5 0.1234 3.1344 2 0.1234 3.134 5.5 24.2 140 208
70480 1 35.71 AA(+) 4 0.1327 3.3706 3 0.1327 3.371 8.1 36.0 186 277
66360 Sparate/AW 2 33.62 AA,A 7 00974 2.4740 1 0.1299 3.299 3.5 15.6 100 149
66360 Sparrow/AW 2 33.62 AA,A 6 0.1052 2.6721 1 0.1052 2.672 2.8 12.3 8608 12810
64920 2 32.89 AA(+) 2 0.1802 4.5771 5 0.1802 4.577 19.5 86.7 430 640
62770 2 31.81 AA(+) 3 0.1446 3.6728 4 0.1446 3.673 11.2 49.8 248 369
60340 2 30.57 AA(+) 5 1.1099 28.1915 2 0.1099 2.791 4.4 19.4 111 165
55890 2 28.32 AA(+) 4 0.1182 3.0023 3 0.1182 3.002 6.6 29.4 147 219
52620 Swallow/AW 3 26.66 A 6 0.0937 2.3800 1 0.0937 2.380 2.2 9.9 69 103
51500 3 26.10 AA(+) 2 0.1605 4.0767 5 0.1605 4.077 16.5 73.4 341 507
49780 3 25.22 AA(+) 3 0.1288 3.2715 4 0.1288 3.272 9.7 43.1 197 293
B 549
TABLE 1 Continued
Conductor Size (Aluminum Wire) Stranding Rated Strength Mass per Unit
Length
Aluminum Aluminum-Clad Steel
Nominal Diameter Nominal Diameter kip
Number of Number of
cmil Code Name AWG mm Class (1000
Wires Wires
in. mm in. mm lbf) kN lb/1000 ft kg/km
47850 3 24.25 AA(+) 5 0.0978 2.4841 2 0.0978 2.484 3.5 15.6 88 131
44320 3 22.46 AA(+) 4 1.1053 28.0746 3 0.1053 2.675 5.3 23.4 117 174
41740 Swanate/AW 4 21.15 AA,A 7 0.0772 1.9609 1 0.1029 2.614 2.3 10.1 62.7 93
41740 Swan/AW 4 21.15 AA,A 6 0.0834 2.1184 1 0.0834 2.118 1.8 7.9 54.5 81
40840 4 20.69 AA(+) 2 0.1429 3.6297 5 0.1429 3.630 13.5 60.0 270 402
39470 4 20.00 AA(+) 3 0.1147 2.9134 4 0.1147 2.913 7.7 34.3 156 232
37950 4 19.23 AA(+) 5 0.0871 2.2123 2 0.0871 2.212 2.8 12.4 69.8 104
35150 4 17.81 AA(+) 4 0.0937 2.3800 3 0.0937 2.380 4.2 18.6 92.6 138
32390 4 16.41 AA(+) 2 0.1273 3.2334 5 0.1273 3.233 11.3 50.3 215 320
31300 4 15.86 AA(+) 3 0.1022 2.5959 4 0.1022 2.596 6.1 27.3 124 185
25690 4 13.02 AA(+) 2 0.1133 2.8778 5 0.1133 2.878 9.0 39.9 170 253
A
Conversion factors:
1 cmil 5 5.067 E-04 mm .
1 in.
...