ZTACCR/TW/C7-TS®

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Application

Southwire’s innovative C7® Overhead Conductor features a multi-stranded, carbon-fiber composite core to provide greater flexibility, reliability and single-failure tolerance. Its advanced core and polymer coating provide our C7 Overhead Conductor with unprecedented sag/tension performance and a 40+ year service life expectancy. From new lines to reconductoring, the C7 Overhead Conductor is engineered to withstand the rigors of installation and operation. Utilities can reduce new-line costs by designing lines with fewer structures or shorter structures, reducing overall construction costs. Line upgrades are also more affordable, as the C7 Overhead Conductor can be used in reconductoring applications to double the ampacity of an existing ACSR, with less sag, without exceeding existing design tensions. As part of Southwire’s complete set of overhead transmission conductors, the C7 Overhead Conductor fulfills a market need for increased performance, capacity and affordability. It is available in Trapezoidal Wire (TW), Aluminum Zirconium (Al-Zr) and O-Temper versions to better suit your specific needs.

  • Used as bare overhead transmission and distribution conductor
  • Great strength-to-weight ratio
  • Excellent corrosion resistance
  • High-temperature low-sag (HTLS)
  • Continuous operating temperature of 180°C
  • Emergency operating temperature of 200°C

Specifications

Select a set of products below for more information:
Codeword Size (AWG or kcmil) (mm2) Type No. Conductor Diameter (inches) (mm) Total Weight (lbs/1000') (kgs/km) RBS (lb) (kg)
Fundy/TW Fundy/TW
203.2 kcmil 203.2 kcmil
43 43
0.585 1.49
241 359
21600.0 9797.59
Shenandoah/TW Shenandoah/TW
266.8 kcmil 266.8 kcmil
21 21
0.608 1.54
281 418
18000.0 8164.66
Olympic/TW Olympic/TW
325 kcmil 325 kcmil
17 17
0.671 1.70
335 498
19200.0 8708.97
Wrangell/TW Wrangell/TW
336.4 kcmil 336.4 kcmil
17 17
0.681 1.73
346 514
19200.0 8708.97
Badlands/TW Badlands/TW
336.4 kcmil 336.4 kcmil
22 22
0.685 1.74
356 530
23400.0 10614.05
Andes/TW Andes/TW
397.5 kcmil 397.5 kcmil
14 14
0.710 1.80
402 599
20300.0 9207.92
Joshua Tree/TW Joshua Tree/TW
397.5 kcmil 397.5 kcmil
16 16
0.718 1.82
407 606
22300.0 10115.10
Sequoia/TW Sequoia/TW
397.5 kcmil 397.5 kcmil
22 22
0.738 1.87
421 627
27800.0 12609.86
Rogers/TW Rogers/TW
477 kcmil 477 kcmil
13 13
0.778 1.98
481 716
23600.0 10704.77
Yosemite/TW Yosemite/TW
477 kcmil 477 kcmil
15 15
0.787 2.00
486 724
25700.0 11657.31
Capitol Reef/TW Capitol Reef/TW
477 kcmil 477 kcmil
23 23
0.820 2.08
508 756
34200.0 15512.85
Tortugas/TW Tortugas/TW
636 kcmil 636 kcmil
10 10
0.880 2.24
629 936
26300.0 11929.47
Yellowstone/TW Yellowstone/TW
636 kcmil 636 kcmil
12 12
0.887 2.25
634 944
28200.0 12791.29
Glacier/TW Glacier/TW
636 kcmil 636 kcmil
15 15
0.905 2.30
648 965
34300.0 15558.21
Carlsbad/TW Carlsbad/TW
636 kcmil 636 kcmil
22 22
0.937 2.38
675 1004
41300.0 18733.35
Congaree/TW Congaree/TW
641.7 kcmil 641.7 kcmil
11 11
0.890 2.26
640 952
28300.0 12836.65
Vinson/TW Vinson/TW
714 kcmil 714 kcmil
10 10
0.933 2.37
707 1052
29500.0 13380.96
Kilimanjaro/TW Kilimanjaro/TW
795 kcmil 795 kcmil
7 7
0.962 2.44
772 1149
26700.0 12110.91
Alps/TW Alps/TW
795 kcmil 795 kcmil
9 9
0.974 2.47
782 1164
30900.0 14015.99
Wind Cave/TW Wind Cave/TW
795 kcmil 795 kcmil
12 12
0.990 2.51
796 1185
36700.0 16646.83
Denali/TW Denali/TW
795 kcmil 795 kcmil
16 16
1.010 2.57
815 1213
44500.0 20184.84
Rocky/TW Rocky/TW
795 kcmil 795 kcmil
22 22
1.044 2.65
842 1254
51200.0 23223.91
Crater Lake/TW Crater Lake/TW
954 kcmil 954 kcmil
7 7
1.058 2.69
930 1383
31400.0 14242.79
Grand Canyon/TW Grand Canyon/TW
954 kcmil 954 kcmil
10 10
1.072 2.72
949 1412
39400.0 17871.52
Fuji/TW Fuji/TW
954 kcmil 954 kcmil
12 12
1.077 2.74
956 1423
44300.0 20094.13
Jasper/TW Jasper/TW
954 kcmil 954 kcmil
16 16
1.104 2.80
976 1452
48700.0 22089.93
Arches/TW Arches/TW
954 kcmil 954 kcmil
20 20
1.126 2.86
999 1486
56800.0 25764.03
Everglades/TW Everglades/TW
973.1 kcmil 973.1 kcmil
14 14
1.108 2.81
987 1469
46800.0 21228.11
Big Bend/TW Big Bend/TW
1033.5 kcmil 1033.5 kcmil
5 5
1.093 2.78
998 1486
30700.0 13925.27
Lassen/TW Lassen/TW
1033.5 kcmil 1033.5 kcmil
7 7
1.103 2.80
1009 1502
34900.0 15830.36
Tahoe/TW Tahoe/TW
1033.5 kcmil 1033.5 kcmil
11 11
1.118 2.84
1030 1533
43400.0 19685.89
Samoa/TW Samoa/TW
1033.5 kcmil 1033.5 kcmil
13 13
1.130 2.87
1037 1544
48600.0 22044.57
Cook/TW Cook/TW
1113 kcmil 1113 kcmil
5 5
1.125 2.86
1073 1597
31600.0 14333.51
Blanc/TW Blanc/TW
1113 kcmil 1113 kcmil
7 7
1.139 2.89
1084 1612
36200.0 16420.03
Niagara/TW Niagara/TW
1113 kcmil 1113 kcmil
10 10
1.155 2.93
1104 1643
44700.0 20275.56
Gannett/TW Gannett/TW
1113 kcmil 1113 kcmil
13 13
1.181 3.00
1123 1672
49100.0 22271.37
Washington/TW Washington/TW
1192.5 kcmil 1192.5 kcmil
5 5
1.166 2.96
1147 1707
32900.0 14923.18
Elbert/TW Elbert/TW
1192.5 kcmil 1192.5 kcmil
7 7
1.184 3.01
1166 1735
40400.0 18325.12
Kings Canyon/TW Kings Canyon/TW
1192.5 kcmil 1192.5 kcmil
10 10
1.203 3.06
1184 1762
47900.0 21727.06
Acadia/TW Acadia/TW
1192.5 kcmil 1192.5 kcmil
13 13
1.223 3.11
1204 1792
52800.0 23949.66
Redwood/TW Redwood/TW
1233.6 kcmil 1233.6 kcmil
7 7
1.206 3.06
1204 1792
41600.0 18869.43
Mesa Verde/TW Mesa Verde/TW
1233.6 kcmil 1233.6 kcmil
10 10
1.221 3.10
1223 1819
49000.0 22226.01
Biscayne/TW Biscayne/TW
1233.6 kcmil 1233.6 kcmil
13 13
1.245 3.16
1249 1858
55800.0 25310.43
Saguaro/TW Saguaro/TW
1272 kcmil 1272 kcmil
5 5
1.211 3.08
1226 1825
36700.0 16646.83
Sierra Nevada/TW Sierra Nevada/TW
1272 kcmil 1272 kcmil
7 7
1.224 3.11
1240 1846
42200.0 19141.58
Eldorado/TW Eldorado/TW
1272 kcmil 1272 kcmil
10 10
1.244 3.16
1265 1883
52600.0 23858.94
Voyageurs/TW Voyageurs/TW
1272 kcmil 1272 kcmil
13 13
1.259 3.20
1285 1912
56500.0 25627.95
Cascades/TW Cascades/TW
1351.5 kcmil 1351.5 kcmil
7 7
1.264 3.21
1321 1965
45600.0 20683.80
Banff/TW Banff/TW
1351.5 kcmil 1351.5 kcmil
10 10
1.278 3.25
1340 1994
53900.0 24448.61
Elbrus/TW Elbrus/TW
1351.5 kcmil 1351.5 kcmil
13 13
1.299 3.30
1366 2032
60300.0 27351.60
Bryce Canyon/TW Bryce Canyon/TW
1590 kcmil 1590 kcmil
7 7
1.357 3.45
1550 2307
52200.0 23677.50
Adirondack/TW Adirondack/TW
1590 kcmil 1590 kcmil
10 10
1.386 3.52
1581 2353
61200.0 27759.83
Zion/TW Zion/TW
1590 kcmil 1590 kcmil
12 12
1.405 3.57
1597 2377
66900.0 30345.30
Teton/TW Teton/TW
1780 kcmil 1780 kcmil
5 5
1.422 3.61
1720 2560
52600.0 23858.94
Everest/TW Everest/TW
1780 kcmil 1780 kcmil
8 8
1.441 3.66
1746 2599
59700.0 27079.44
Katmai/TW Katmai/TW
1780 kcmil 1780 kcmil
10 10
1.463 3.72
1766 2628
66800.0 30299.95

Standards & References

  • ASTM B941 Heat Resistant Aluminum-Zirconium Alloy Wire for Electrical Purposes

Construction

  • Shaped Aluminum Zirconium (Al-Zr) outer strands
  • Carbon fiber thermoset polymer matrix core strands
  • Concentrically stranded