ACSR/TW

Aluminum Conductor. Steel Reinforced.

Trapezoidal Shaped Aluminum Strands.

Images not to scale. See Table for Dimensions

CONSTRUCTION:
• Aluminum 1350-H19 trapezoidal-shaped wires, concentrically stranded about a steel core. Standard core wire coating for
ACSR is Class A galvanized (GA2).
• Also available in zinc-5% aluminum-mischmetal alloy coating or aluminum-clad (AW)
• Additional corrosion protection is available through the application of grease to the core or complete conductor.
• Also available in non-specular.

APPLICATIONS AND FEATURES:

• Used for bare overhead transmission, and primary and secondary distribution.
• Two design offerings: Equal Area or Equal Diameter when compared to standard round ACSR
• Equal area designs allow comparable ampacity in a smaller diameter conductor when compared to a standard round
ACSR.
• Equal diameter designs allow more ampacity and strength in an equal diameter conductor when compared to a standard
round ACSR.

SPECIFICATIONS:
• ASTM B230 Aluminum 1350-H19 Wire for Electrical Purposes
• ASTM B498 Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors
• ASTM B500 Metallic Coated or Aluminum Clad Stranded Steel Core for Use in Overhead Electrical Conductors
• ASTM B779 Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Steel-Reinforced (ACSR/TW)

Southwire Company, LLC | One Southwire Drive, Carrollton, GA 30119 | www.southwire.com

Copyright © 2017 Southwire Company, LLC. All Rights Reserved
ACSR/TW

Shaped Wire Concentric-Lay Compact Aluminum Conductors Steel Reinforced (ACSR/TW)

Area Equal to Standard ACSR Sizes
Code Word Size Type Cross Sectional Stranding Diameter Weight Rated Resistance Ampacity
(kcmil) No. Area (in) (lb/1000 ft) Breaking (Ω/mi) (AMP)+
(in2) Strength
(lb)
Alum. Total No of No. of No. & Diameter Steel Core Complete Alum. Steel Total Standard DC @ AC @ 75°C @ 75°C
Layers Alum. Individual Steel Conductor Strength 20°C
of Alum. Wires Wire

Partridge/TW 266.8 16 0.2094 0.2435 2 14 7 x 0.0788 0.2364 0.595 250 116 366 11200 0.3356 0.4103 449
Linnet/TW 336.4 16 0.2642 0.3073 2 16 7 x 0.0885 0.2655 0.667 316 146 462 14000 0.2662 0.3255 519
Oriole/TW 336.4 23 0.2642 0.3259 2 16 7 x 0.1059 0.3177 0.693 317 209 526 17100 0.265 0.3239 525
Merlin/TW 336.4 6 0.2642 0.2788 2 14 1 x 0.1367 0.1367 0.630 315 50 365 8560 0.2693 0.3298 508
Flicker/TW 477 13 0.3747 0.4233 2 18 7 x 0.0940 0.2820 0.776 448 165 613 17200 0.1884 0.2308 641
Hawk/TW 477 16 0.3746 0.4356 2 18 7 x 0.1053 0.3159 0.789 449 206 655 19400 0.1877 0.2299 645
Hen/TW 477 23 0.3745 0.4619 2 20 7 x 0.1261 0.3783 0.820 450 296 746 23600 0.1869 0.2287 653
Parakeet/TW 556.5 13 0.4371 0.4937 2 18 7 x 0.1015 0.3045 0.835 523 192 715 20000 0.1615 0.1980 707
Dove/TW 556.5 16 0.4371 0.5083 2 20 7 x 0.1138 0.3414 0.852 524 241 765 22600 0.1609 0.1973 711
Swift/TW 636 3 0.4995 0.5133 3 27 1 x 0.1329 0.1329 0.850 599 47 646 13500 0.1435 0.1821 740
Rook/TW 636 13 0.4995 0.5643 2 20 7 x 0.1085 0.3255 0.890 597 219 816 22900 0.1413 0.1735 767
Scoter/TW 636 23 0.4994 0.6159 2 22 7 x 0.1456 0.4368 0.942 600 395 995 30400 0.1398 0.1714 783
Grosbeak/TW 636 16 0.4995 0.5808 2 20 7 x 0.1216 0.3648 0.908 599 275 873 25400 0.1408 0.1728 772
Tern/TW 795 7 0.6244 0.6675 2 17 7 x 0.0886 0.2658 0.960 746 146 892 21000 0.1138 0.1405 869
Puffin/TW 795 10 0.6244 0.6919 2 18 7 x 0.1108 0.3324 0.980 747 228 975 25900 0.1133 0.1397 876
Condor/TW 795 13 0.6244 0.7053 2 20 7 x 0.1213 0.3639 0.993 747 274 1021 28200 0.1130 0.1392 880
Drake/TW 795 16 0.6244 0.7261 2 20 7 x 0.1360 0.4080 1.010 748 344 1092 31800 0.1126 0.1386 886
Phoenix/TW 954 5 0.7493 0.7876 3 30 7 x 0.0837 0.2511 1.044 898 131 1029 23700 0.0954 0.1217 956
Rail/TW 954 7 0.7493 0.8011 3 32 7 x 0.0971 0.2913 1.061 900 175 1075 25900 0.0953 0.1214 960
Cardinal/TW 954 13 0.7493 0.8464 2 20 7 x 0.1329 0.3987 1.084 897 329 1226 33500 0.0942 0.1164 985
+Ampacity based on 25°C ambient temperature, 2 ft/sec perpendicular wind, in sun, emmisivity of 0.5, solar absorption of 0.5, at sea level.

Southwire Company, LLC | One Southwire Drive, Carrollton, GA 30119 | www.southwire.com

Copyright © 2017 Southwire Company, LLC. All Rights Reserved
ACSR/TW

Shaped Wire Concentric-Lay Compact Aluminum Conductors Steel Reinforced (ACSR/TW)

Area Equal to Standard ACSR Sizes
Code Word Size Type Cross Sectional Stranding Diameter Weight Rated Resistance Ampacity
(kcmil) No. Area (in) (lb/1000 ft) Breaking (Ω/mi) (AMP)+
(in2) Strength
(lb)
Alum. Total No of No. of No. & Diameter Steel Complete Alum. Steel Total Standard DC @ AC @ @ 75°C
Layers Alum. Individual Steel Core Conductor Strength 20°C 75°C
of Alum. Wires Wire

Snowbird/TW 1033.5 5 0.8117 0.8534 3 30 7 x 0.0871 0.2613 1.089 974 141 1115 25700 0.0880 0.1126 1004
Ortolan/TW 1033.5 7 0.8117 0.8678 3 32 7 x 0.1010 0.3030 1.102 975 190 1165 28100 0.0879 0.1123 1008
Curlew/TW 1033.5 13 0.8117 0.9169 2 22 7 x 0.1383 0.4149 1.129 971 356 1327 36300 0.0869 0.1077 1035
Avocet/TW 1113 5 0.8742 0.9191 3 30 7 x 0.0904 0.2712 1.129 1049 152 1201 27500 0.0818 0.1048 1050
Bluejay/TW 1113 7 0.8742 0.9347 3 33 7 x 0.1049 0.3147 1.143 1049 205 1254 30300 0.0816 0.1045 1055
Finch/TW 1113 13 0.8742 0.9851 3 38 19 x 0.0862 0.4310 1.185 1053 376 1429 39100 0.0812 0.1035 1071
Oxbird/TW 1192.5 5 0.9366 0.9848 3 30 7 x 0.0936 0.2808 1.167 1123 163 1286 29500 0.0763 0.0981 1095
Bunting/TW 1192.5 7 0.9366 1.0013 3 34 7 x 0.1085 0.3255 1.181 1124 219 1343 32400 0.0762 0.0978 1100
Grackel/TW 1192.5 13 0.9366 1.0554 3 38 19 x 0.0892 0.4460 1.225 1127 403 1530 41900 0.0758 0.0968 1117
Scissortail/TW 1272 5 0.9991 1.0505 3 30 7 x 0.0967 0.2901 1.203 1198 174 1372 31400 0.0715 0.0922 1139
Bittern/TW 1272 7 0.9990 1.0681 3 38 7 x 0.1121 0.3363 1.220 1198 235 1433 34600 0.0714 0.0919 1145
Pheasant/TW 1272 13 0.9990 1.1256 3 39 19 x 0.0921 0.4605 1.264 1202 430 1632 44100 0.0711 0.0909 1162
Dipper/TW 1351.5 7 1.0615 1.1348 3 35 7 x 0.1155 0.3465 1.256 1274 248 1522 36700 0.0672 0.0868 1187
Martin/TW 1351.5 13 1.0615 1.1959 3 42 19 x 0.0949 0.4745 1.300 1278 456 1734 46800 0.0669 0.0858 1205
Bobolink/TW 1431 7 1.1236 1.2017 3 36 7 x 0.1189 0.3567 1.291 1350 263 1613 38900 0.0635 0.0822 1229
Plover/TW 1431 13 1.1239 1.2664 3 39 19 x 0.0977 0.4885 1.337 1353 483 1836 49600 0.0632 0.0812 1248
Lapwing/TW 1590 7 1.2488 1.3351 3 36 7 x 0.1253 0.3759 1.358 1500 292 1792 42200 0.0572 0.0745 1308
Falcon/TW 1590 13 1.2488 1.4071 3 42 19 x 0.1030 0.5150 1.408 1503 537 2040 55100 0.0569 0.0735 1330
Chukar/TW 1780 8 1.3986 1.5120 3 38 19 x 0.0874 0.4370 1.445 1676 387 2063 50700 0.0509 0.0667 1405
Bluebird/TW 2156 8 1.0934 1.8312 4 64 19 x 0.0961 0.4805 1.608 2047 468 2515 61100 0.0424 0.0554 1585
+Ampacity based on 25°C ambient temperature, 2 ft/sec perpendicular wind, in sun, emmisivity of 0.5, solar absorption of 0.5, at sea level.

Southwire Company, LLC | One Southwire Drive, Carrollton, GA 30119 | www.southwire.com

Copyright © 2017 Southwire Company, LLC. All Rights Reserved
ACSR/TW

Shaped Wire Concentric-Lay Compact Aluminum Conductors Steel Reinforced (ACSR/TW)

Diameters Equal to Standard ACSR Sizes
Code Word Size Type Cross Sectional Stranding Diameter Weight Rated Resistance Ampacity
(kcmil) No. Area (in) (lb/1000 ft) Breaking (Ω/mi) (AMP)+
(in2) Strength
(lb)

Alum. Total No of No. of No. & Diameter Steel Complete Alum. Steel Total Standard DC @ AC @ @ 75°C
Layers Alum. Individual Steel Core Conductor Strength 20°C 75°C
of Alum. Wires Wire

Monongahela/TW 405.1 6 0.3181 0.3362 2 14 1 x 0.1520 0.1520 0.680 380 61 441 10200 0.2236 0.2741 568
Mohawk/TW 571.7 13 0.4490 0.5074 2 18 7 x 0.1030 0.3090 0.846 537 198 735 20600 0.1572 0.1928 717
Calumet/TW 565.3 16 0.4439 0.5165 2 20 7 x 0.1147 0.3441 0.858 531 245 776 22900 0.1584 0.1942 717
Mystic/TW 666.6 13 0.5236 0.5914 2 20 7 x 0.1111 0.3333 0.913 626 230 856 24000 0.1348 0.1656 790
Oswego/TW 664.8 16 0.5221 0.6072 2 20 7 x 0.1244 0.3732 0.927 625 288 913 26600 0.1347 0.1654 793
Nechako/TW 768.9 3 0.6039 0.6220 3 27 1 x 0.1520 0.1520 0.930 724 61 785 16400 0.1187 0.1510 832
Maumee/TW 768.2 13 0.6034 0.6819 2 20 7 x 0.1195 0.3585 0.977 722 266 988 27700 0.1170 0.1440 862
Wabash/TW 762.8 16 0.5992 0.6966 2 20 7 x 0.1331 0.3993 0.990 717 330 1047 30500 0.1174 0.1446 863
Kettle/TW 957.2 7 0.7518 0.8038 3 32 7 x 0.0973 0.2919 1.060 903 176 1079 26000 0.0949 0.1210 962
Fraser/TW 946.7 10 0.7436 0.8168 3 35 7 x 0.1154 0.3462 1.077 894 248 1142 29600 0.0957 0.1217 963
Columbia/TW 966.2 13 0.7589 0.8573 2 21 7 x 0.1338 0.4014 1.092 908 333 1241 34000 0.0930 0.1150 993
Suwannee/TW 959.6 16 0.7537 0.8762 2 22 7 x 0.1493 0.4479 1.108 903 415 1318 37000 0.0933 0.1152 996
Cheyenne/TW 1168.1 5 0.9175 0.9646 3 30 7 x 0.0926 0.2778 1.155 1100 160 1260 28900 0.0779 0.1001 1081
Genesee/TW 1158 7 0.9095 0.9733 3 34 7 x 0.1078 0.3234 1.165 1092 216 1308 31600 0.0785 0.1005 1081
Hudson/TW 1158.4 13 0.9098 1.0281 2 24 7 x 0.1467 0.4401 1.196 1089 400 1489 39600 0.0776 0.0964 1111
Catawba/TW 1272 5 0.9991 1.0505 3 30 7 x 0.0967 0.2901 1.203 1198 174 1372 31400 0.0715 0.0922 1139
Nelson/TW 1257.1 7 0.9874 1.0557 3 35 7 x 0.1115 0.3345 1.213 1186 231 1417 34200 0.0723 0.0930 1137
Yukon/TW 1233.6 13 0.9689 1.0925 3 38 19 x 0.0910 0.4550 1.245 1167 419 1586 42900 0.0733 0.0937 1140
Truckee/TW 1372.5 5 1.0780 1.1334 3 30 7 x 0.1004 0.3012 1.248 1293 188 1481 33400 0.0663 0.0858 1192
+Ampacity based on 25°C ambient temperature, 2 ft/sec perpendicular wind, in sun, emmisivity of 0.5, solar absorption of 0.5, at sea level.

Southwire Company, LLC | One Southwire Drive, Carrollton, GA 30119 | www.southwire.com

Copyright © 2017 Southwire Company, LLC. All Rights Reserved
ACSR/TW

Shaped Wire Concentric-Lay Compact Aluminum Conductors Steel Reinforced (ACSR/TW)

Diameters Equal to Standard ACSR Sizes
Code Word Size Type Cross Sectional Stranding Diameter Weight Rated Resistance Ampacity
(kcmil) No. Area (in) (lb/1000 ft) Breaking (Ω/mi) (AMP)+
(in2) Strength
(lb)
Alum. Total No of No. of No. & Diameter Steel Complete Alum. Steel Total Standard DC @ AC @ @ 75°C
Layers Alum. Individual Steel Core Conductor Strength 20°C 75°C
of Alum. Wires Wire

Mackenzie/TW 1359.7 7 1.0679 1.1418 3 36 7 x 0.1159 0.3477 1.259 1280 250 1530 36900 0.0668 0.0863 1192
Thames/TW 1334.6 13 1.3480 1.1809 3 38 19 x 0.0944 0.4720 1.290 1262 451 1713 46300 0.0677 0.0868 1195
St. Croix/TW 1467.8 5 1.1529 1.2124 3 33 7 x 0.1041 0.3123 1.292 1383 202 1585 35800 0.0620 0.0806 1241
Miramichi/TW 1455.3 7 1.1430 1.2222 3 36 7 x 0.1200 0.3600 1.302 1372 268 1640 39200 0.0624 0.0809 1241
Merrimack/TW 1433.6 13 1.1250 1.2677 3 39 19 x 0.0978 0.4890 1.340 1356 484 1840 49700 0.0631 0.0811 1250
Platte/TW 1569 5 1.2323 1.2957 3 33 7 x 0.1074 0.3222 1.334 1478 215 1693 38200 0.0580 0.0758 1291
Potomac/TW 1557.4 7 1.2232 1.3079 3 36 7 x 0.1241 0.3723 1.345 1468 287 1755 41900 0.0583 0.0759 1292
Rio Grande/TW 1533.3 13 1.2043 1.3571 3 38 19 x 0.1012 0.5060 1.382 1449 519 1968 53200 0.0590 0.0760 1301
Schuylkill/TW 1657.4 7 1.3020 1.3920 3 36 7 x 0.1280 0.3840 1.386 1563 305 1868 44000 0.0548 0.0717 1341
Pecos/TW 1622 13 1.2739 1.4429 3 39 19 x 0.1064 0.5320 1.424 1533 574 2107 57500 0.0557 0.0720 1347
Pee Dee/TW 1758.6 7 1.3810 1.4770 3 38 7 x 0.1319 0.3957 1.427 1658 324 1982 46700 0.0517 0.0679 1389
James/TW 1730.6 13 1.3590 1.5314 3 34 19 x 0.1075 0.5375 1.470 1636 585 2221 59400 0.0522 0.0679 1400
Athabaska/TW 1949.6 7 1.5312 1.6377 3 44 7 x 0.1392 0.4176 1.504 1838 361 2199 51900 0.0466 0.0608 1488
Cumberland/TW 1926.9 13 1.5134 1.7049 3 42 19 x 0.1133 0.5665 1.545 1821 650 2471 65300 0.0469 0.0614 1491
Powder/TW 2153.8 8 1.6912 1.8290 4 64 19 x 0.0961 0.4805 1.602 2030 468 2498 61100 0.0424 0.0554 1583
Santee/TW 2627.3 8 2.0630 2.2268 4 64 19 x 0.1062 0.5310 1.762 2477 571 3048 74500 0.0348 0.0468 1768
+Ampacity based on 25°C ambient temperature, 2 ft/sec perpendicular wind, in sun, emmisivity of 0.5, solar absorption of 0.5, at sea level.

Southwire Company, LLC | One Southwire Drive, Carrollton, GA 30119 | www.southwire.com

Copyright © 2017 Southwire Company, LLC. All Rights Reserved