TACSR conductors are used for overhead transmission lines, ground lines, and electric railways. Because of their high strength and excellent corrosion resistance, they are great for long-distance lines and areas with bad weather like severe cold and heavy snow. They are also used to upgrade old power lines for voltages ranging from 1 kV to 750 kV.
Thermal-resistant Aluminum Alloy Conductor, Steel Reinforced (TACSR) is a conductor that can carry a high amount of electricity. It is made with an inner core of steel wire and an outer layer of round, thermal-resistant aluminum alloy wires.
It is used for overhead transmission lines, ground lines, and electric railways. Due to its clear advantages, such as being anti-corrosion and having high strength, it is applicable for long-span lines. It is also suitable for severe cold zones with heavy snow and other bad weather, in addition to general transmission lines. It is used for power plants and for power transmission and distribution lines with voltages from 1 kV up to 750 kV, especially in routes that need more capacity or for transforming old lines.
IEC 61089 Round Wire Concentric Lay Overhead Electrical Stranded Conductors
IEC 62004 Thermal-Resistant Aluminum Alloy Wires for Overhead Line Conductor
NB/T 42060 Thermal-Resistant Aluminum Alloy Conductors, Steel Core Reinforced for Overhead Transmission Line
| Conductor Size (mm2) | Stranding (Nos./mm) | Min. Breaking Load (kgf) | Reference | |||||||||||||
| Cross-sectional Area (mm2) | Overall Diameter (mm) | Weight (kg/km) | DC Resistance at 20℃ (Ω/km) | Modulus of Elasticity (kgf/mm2) | Coefficient of Linear Expansion (10-6/℃) | Standard Length (m) | Current Carrying Capacity (A) | |||||||||
| TAl | ST | TAl | ST | Total | TAl | ST | TAl | ST | Total | |||||||
| 58 | 6/3.5 | 1/3.5 | 1,980 | 57.73 | 9.621 | 67.35 | 10.5 | 3.5 | 158.1 | 75.04 | 233.1 | 0.505 | 8,400 | 18.9 | 1,000 | 343 |
| 80 | 6/4.2 | 1/4.2 | 2,770 | 83.10 | 13.85 | 96.95 | 12.6 | 4.2 | 227.5 | 108.0 | 335.5 | 0.350 | 8,400 | 18.9 | 1,000 | 430 |
| 95 | 6/4.5 | 1/4.5 | 3,810 | 95.40 | 15.90 | 111.3 | 13.5 | 4.5 | 261.2 | 124.0 | 385.2 | 0.306 | 8,400 | 18.9 | 1,000 | 478 |
| 80 | 15/2.6 | 4/2.6 | 4,720 | 79.64 | 21.24 | 100.9 | 13.0 | 7.8 | 219.2 | 166.5 | 385.7 | 0.368 | 9,390 | 17.6 | 2,000 | 448 |
| 100 | 15/2.9 | 4/2.9 | 5,580 | 99.08 | 26.42 | 125.5 | 14.5 | 8.7 | 272.8 | 207.1 | 479.9 | 0.296 | 9,390 | 17.6 | 2,000 | 517 |
| 120 | 15/3.2 | 4/3.2 | 5,550 | 120.6 | 32.17 | 152.8 | 16.0 | 9.6 | 332.2 | 252.2 | 584.4 | 0.243 | 9,390 | 17.6 | 2,000 | 590 |
| 120 | 30/2.3 | 7/2.3 | 5,540 | 124.7 | 29.09 | 153.8 | 16.1 | 6.9 | 345.7 | 228.0 | 573.7 | 0.237 | 9,080 | 18.0 | 2,000 | 598 |
| 160 | 30/2.6 | 7/2.6 | 6,980 | 159.3 | 37.16 | 196.5 | 18.2 | 7.8 | 441.5 | 291.3 | 732.8 | 0.185 | 9,080 | 18.0 | 2,000 | 706 |
| 200 | 30/2.9 | 7/2.9 | 8,640 | 198.2 | 46.24 | 244.4 | 20.3 | 8.7 | 549.3 | 362.4 | 911.7 | 0.149 | 9,080 | 18.0 | 2,000 | 816 |
| 240 | 30/3.2 | 7/3.2 | 10,210 | 241.3 | 56.29 | 297.6 | 22.4 | 9.6 | 668.9 | 441.3 | 1,110 | 0.122 | 9,080 | 18.0 | 2,000 | 932 |
| 330 | 26/4.0 | 7/3.1 | 10,950 | 326.8 | 52.84 | 379.6 | 25.3 | 9.3 | 905.4 | 414.2 | 1,320 | 0.0904 | 8,360 | 19.0 | 2,000 | 1,128 |
| 410 | 26/4.5 | 7/3.5 | 13,910 | 413.4 | 67.35 | 480.8 | 28.5 | 10.5 | 1,145 | 527.9 | 1,673 | 0.0714 | 8,360 | 19.0 | 2,000 | 1,322 |
| 480 | 45/3.7 | 7/2.47 | 11,260 | 483.8 | 33.54 | 517.34 | 29.6 | 7.41 | 1336.1 | 262.9 | 1,599 | 0.0610 | 7,250 | 20.8 | 2,000 | 1,425 |
| 520 | 54/3.5 | 7/3.5 | 15,600 | 519.5 | 67.35 | 586.9 | 31.5 | 10.5 | 1,441 | 527.9 | 1,969 | 0.0569 | 7,990 | 19.5 | 1,600 | 1,504 |
| 610 | 54/3.8 | 7/3.8 | 18,350 | 612.4 | 79.38 | 691.8 | 34.2 | 11.4 | 1,698 | 622.2 | 2,320 | 0.0481 | 7,990 | 19.5 | 1,600 | 1,682 |
| 680 | 54/4.0 | 7/4.0 | 19,810 | 678.8 | 87.99 | 766.8 | 36.0 | 12.0 | 1,882 | 689.8 | 2,572 | 0.0436 | 7,990 | 19.5 | 1,600 | 1,797 |
| 680 | 45/4.4 | 7/2.9 | 15,580 | 684.5 | 46.24 | 730.7 | 35.1 | 8.7 | 1,898 | 362.4 | 2,260 | 0.0431 | 7,250 | 20.8 | 1,600 | 1,787 |
| 810 | 45/4.8 | 7/3.2 | 18,480 | 814.5 | 56.29 | 870.8 | 38.4 | 9.6 | 2,259 | 441.3 | 2,700 | 0.0363 | 7,250 | 20.8 | 1,600 | 2,004 |
| 1,160 | 84/4.2 | 7/4.2 | 27,830 | 1.163 | 96.95 | 1,260 | 46.2 | 12.6 | 3,236 | 759.8 | 3,996 | 0.0254 | 7,430 | 20.5 | 1,200 | 2,573 |
| 1,520 | 84/4.8 | 7/4.8 | 36,390 | 1.520 | 126.7 | 1,647 | 52.8 | 14.4 | 4,228 | 993.3 | 5,222 | 0.0195 | 7,430 | 20.5 | 1,200 | 3,035 |
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