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Super Thermal Alloy Conductor Invar Reinforced (STACIR) conductor
Invar Conductor Manufacturer & Supplier from China
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Application
Super Thermal Alloy Conductor Invar Reinforced (STACIR) conductor has outer layers composed of Super Thermal Aluminium (STAL) alloy wires that can operate up to 210°C (410°F). The inner core is composed of aluminium clad INVAR wires. INVAR is a metal alloy with 36% Ni in steel.
STACIR/AW conductors are suited for re-conductoring applications. The capacity of existing transmission line can be enhanced by simply replacing the existing conductor without any modification to the tower.
Hi-STACIR/AW, STACIR/AW is normally used to up-rate an existing transmission line by simply replacing the exisitng conductor without tower modification or reinforcement.
Construction
Core Wire (INVAR) : Aluminum-clad INVAR Wire/High Tensile Strength Aluminum-clad INVAR Wire
Conductor (STAl) : Super Thermal Resistant Aluminum Alloy Wire used for continuous allowable temperature up to 210℃
Benefits
Can carry 100% more current than that of ACSR of the same size, while maximum sag and maximum working tension remain the same as that of ACSR.
No modification or reinforcement is required to existing towers for uprating transmission and distribution lines.
Standard
IEC, ASTM, JCS 1405
SUPER THERMAL RESISTANT ALUMINUM ALLOY CONDUCTOR, ALUMINUM CLAD INVAR REINFORCED (STACIR)
Conductor Size | Stranding | Cross-Sectional Area | Diameter of Complete Conductor | Weight | Rated Strength | DC Resistance @ 20°C | Current Capacity | |||||||||
No. of Wires | Wire diameter | STAL | Invar | Total | STAL | Steel | Total | |||||||||
STAL | Invar | STAL | Invar | @ 85°C | @ 150°C | @ 210°C | ||||||||||
(mm²) | (No.) | (No.) | (mm) | (mm) | (mm²) | (mm²) | (mm²) | (mm) | (Kg/Km) | (Kg/Km) | (Kg/Km) | (KN) | (Ω/Km) | (Ampere) | (Ampere) | (Ampere) |
200 | 30 | 7 | 2.60 | 2.60 | 159.28 | 37.17 | 196.44 | 18.20 | 439.31 | 265.01 | 704.32 | 65.38 | 0.1746 | 403 | 690 | 850 |
240 | 30 | 7 | 2.90 | 2.90 | 198.16 | 46.24 | 244.39 | 20.30 | 546.54 | 329.69 | 876.23 | 79.92 | 0.1403 | 460 | 794 | 980 |
300 | 30 | 7 | 3.20 | 3.20 | 241.27 | 56.30 | 297.57 | 22.40 | 665.47 | 401.43 | 1066.90 | 94.82 | 0.1153 | 518 | 901 | 1114 |
300 | 30 | 7 | 3.20 | 3.20 | 241.27 | 56.30 | 297.57 | 22.40 | 665.47 | 401.43 | 1066.90 | 94.82 | 0.1153 | 518 | 901 | 1114 |
380 | 26 | 7 | 4.00 | 3.10 | 326.73 | 52.83 | 379.56 | 25.30 | 902.22 | 376.73 | 1278.95 | 104.26 | 0.0866 | 612 | 1076 | 1335 |
380 | 26 | 7 | 4.00 | 3.10 | 326.73 | 52.83 | 379.56 | 25.30 | 902.22 | 376.73 | 1278.95 | 104.26 | 0.0866 | 612 | 1076 | 1335 |
480 | 26 | 7 | 4.50 | 3.50 | 413.51 | 67.35 | 480.86 | 28.50 | 1141.87 | 480.23 | 1622.10 | 132.42 | 0.0684 | 704 | 1253 | 1559 |
480 | 26 | 7 | 4.50 | 3.50 | 413.51 | 67.35 | 480.86 | 28.50 | 1141.87 | 480.23 | 1622.10 | 132.42 | 0.0684 | 704 | 1253 | 1559 |
520 | 45 | 7 | 3.70 | 2.47 | 483.85 | 33.54 | 517.39 | 29.61 | 1337.00 | 239.17 | 1576.17 | 113.10 | 0.0597 | 748 | 1336 | 1665 |
520 | 45 | 7 | 3.70 | 2.47 | 483.85 | 33.54 | 517.39 | 29.61 | 1337.00 | 239.17 | 1576.17 | 113.10 | 0.0597 | 748 | 1336 | 1665 |
590 | 54 | 7 | 3.50 | 3.50 | 519.54 | 67.35 | 586.89 | 31.50 | 1437.04 | 480.23 | 1917.27 | 150.84 | 0.0549 | 790 | 1419 | 1771 |
600 | 54 | 7 | 3.53 | 3.53 | 528.49 | 68.51 | 596.99 | 31.77 | 1461.78 | 488.50 | 1950.28 | 152.20 | 0.0540 | 797 | 1434 | 1791 |
630 | 54 | 19 | 3.63 | 2.18 | 558.85 | 70.92 | 629.77 | 32.68 | 1545.78 | 507.40 | 2053.17 | 163.93 | 0.0511 | 824 | 1486 | 1857 |
690 | 54 | 7 | 3.80 | 3.80 | 612.42 | 79.39 | 691.81 | 34.20 | 1693.95 | 566.08 | 2260.03 | 176.38 | 0.0466 | 869 | 1576 | 1972 |
710 | 54 | 19 | 3.85 | 2.31 | 628.65 | 79.63 | 708.27 | 34.65 | 1738.82 | 569.72 | 2308.54 | 182.37 | 0.0454 | 883 | 1602 | 2006 |
730 | 45 | 7 | 4.40 | 2.90 | 684.24 | 46.24 | 730.48 | 35.10 | 1890.75 | 329.69 | 2220.44 | 155.82 | 0.0423 | 914 | 1663 | 2084 |
770 | 54 | 7 | 4.00 | 4.00 | 678.59 | 87.96 | 766.55 | 36.00 | 1876.95 | 627.24 | 2504.19 | 193.40 | 0.0421 | 922 | 1682 | 2108 |
800 | 54 | 19 | 4.09 | 2.45 | 709.47 | 89.57 | 799.04 | 36.79 | 1962.37 | 640.86 | 2603.23 | 205.51 | 0.0403 | 946 | 1729 | 2169 |
900 | 54 | 19 | 4.34 | 2.61 | 798.85 | 101.65 | 900.50 | 39.09 | 2209.60 | 727.30 | 2936.90 | 230.40 | 0.0357 | 1014 | 1868 | 2348 |
SUPER THERMAL RESISTANT ALUMINUM ALLOY CONDUCTOR, ALUMINUM CLAD INVAR REINFORCED (STACIR/TW)
Conductor Size | Cross-Sectional Area | Stranding | Diameter of Complete Conductor | Weight | Rated Strength | DC Resistance @ 20°C | Current Capacity | |||||||||
STAL | Invar | Total | No. of STAL Wires | No. of STAL Layers | No. of Invar Wires | Dia. of Invar Wires | STAL | Invar | Total | |||||||
@ 85°C | @ 150°C | @ 210°C | ||||||||||||||
(mm²) | (mm²) | (mm²) | (mm²) | (No.) | (No.) | (No.) | (mm) | (mm) | (Kg/Km) | (Kg/Km) | (Kg/Km) | (KN) | (Ω/Km) | (Ampere) | (Ampere) | (Ampere) |
320 | 322.26 | 52.49 | 374.75 | 20 | 2 | 7 | 3.09 | 22.88 | 888.49 | 374.31 | 1262.80 | 100.95 | 0.0876 | 596 | 1039 | 1287 |
340 | 336.85 | 54.90 | 391.75 | 20 | 2 | 7 | 3.16 | 23.38 | 928.73 | 391.46 | 1320.19 | 105.55 | 0.0838 | 612 | 1069 | 1324 |
390 | 389.25 | 50.81 | 440.06 | 20 | 2 | 7 | 3.04 | 24.72 | 1073.18 | 362.29 | 1435.47 | 109.47 | 0.0731 | 662 | 1163 | 1442 |
405 | 402.83 | 52.15 | 454.98 | 20 | 2 | 7 | 3.08 | 25.14 | 1110.62 | 371.89 | 1482.51 | 112.86 | 0.0706 | 676 | 1189 | 1475 |
480 | 479.69 | 47.20 | 526.89 | 35 | 3 | 7 | 2.93 | 26.98 | 1329.03 | 336.55 | 1665.58 | 123.00 | 0.0600 | 733 | 1298 | 1613 |
490 | 489.57 | 63.55 | 553.13 | 24 | 2 | 7 | 3.40 | 27.70 | 1349.78 | 453.18 | 1802.96 | 136.19 | 0.0581 | 759 | 1347 | 1676 |
525 | 523.67 | 26.85 | 550.53 | 30 | 3 | 7 | 2.21 | 27.50 | 1450.88 | 191.47 | 1642.35 | 107.39 | 0.0556 | 763 | 1354 | 1685 |
590 | 586.76 | 41.28 | 628.03 | 33 | 3 | 7 | 2.74 | 29.40 | 1625.66 | 294.31 | 1919.97 | 131.16 | 0.0494 | 820 | 1464 | 1825 |
625 | 625.07 | 79.63 | 704.69 | 38 | 3 | 19 | 2.31 | 31.32 | 1731.79 | 569.72 | 2301.51 | 177.43 | 0.0458 | 862 | 1549 | 1935 |
640 | 636.97 | 44.03 | 681.00 | 35 | 3 | 7 | 2.83 | 30.60 | 1764.78 | 313.97 | 2078.75 | 141.60 | 0.0455 | 860 | 1542 | 1925 |
680 | 676.24 | 85.95 | 762.20 | 39 | 3 | 19 | 2.40 | 32.58 | 1873.58 | 614.97 | 2488.55 | 191.75 | 0.0423 | 903 | 1630 | 2037 |
690 | 688.96 | 47.52 | 736.48 | 36 | 3 | 7 | 2.94 | 31.80 | 1908.82 | 338.85 | 2247.67 | 151.77 | 0.0421 | 899 | 1620 | 2024 |
725 | 725.09 | 91.78 | 816.87 | 39 | 3 | 19 | 2.48 | 33.72 | 2008.91 | 656.66 | 2665.57 | 205.21 | 0.0395 | 940 | 1703 | 2131 |
730 | 726.41 | 91.78 | 818.19 | 39 | 3 | 19 | 2.48 | 33.75 | 2012.56 | 656.66 | 2669.22 | 205.41 | 0.0394 | 941 | 1705 | 2134 |
740 | 737.40 | 51.14 | 788.54 | 36 | 3 | 7 | 3.05 | 32.92 | 2043.02 | 364.68 | 2407.70 | 162.72 | 0.0393 | 936 | 1692 | 2117 |
780 | 776.92 | 98.56 | 875.49 | 39 | 3 | 19 | 2.57 | 34.90 | 2152.52 | 705.18 | 2857.70 | 218.33 | 0.0368 | 979 | 1780 | 2231 |
790 | 789.13 | 54.55 | 843.69 | 36 | 3 | 7 | 3.15 | 34.05 | 2186.36 | 388.98 | 2575.34 | 173.95 | 0.0367 | 973 | 1767 | 2213 |
820 | 821.87 | 108.79 | 930.65 | 39 | 3 | 19 | 2.70 | 36.00 | 2277.05 | 778.33 | 3055.38 | 235.56 | 0.0348 | 1012 | 1847 | 2316 |
840 | 839.80 | 58.07 | 897.88 | 36 | 3 | 7 | 3.25 | 35.14 | 2326.74 | 414.07 | 2740.81 | 185.14 | 0.0345 | 1008 | 1837 | 2304 |
880 | 876.90 | 111.22 | 988.11 | 42 | 3 | 19 | 2.73 | 37.10 | 2429.50 | 795.72 | 3225.22 | 246.40 | 0.0326 | 1050 | 1923 | 2414 |
890 | 891.08 | 61.70 | 952.78 | 42 | 3 | 7 | 3.35 | 36.18 | 2468.81 | 439.95 | 2908.76 | 195.42 | 0.0325 | 1043 | 1907 | 2394 |
900 | 901.93 | 73.54 | 975.47 | 42 | 3 | 19 | 2.22 | 36.70 | 2498.85 | 526.19 | 3025.04 | 213.21 | 0.0320 | 1054 | 1931 | 2425 |
980 | 976.36 | 123.77 | 1100.13 | 42 | 3 | 19 | 2.88 | 39.12 | 2705.08 | 885.56 | 3590.64 | 274.28 | 0.0293 | 1115 | 2056 | 2587 |
990 | 987.86 | 68.90 | 1056.76 | 42 | 3 | 7 | 3.54 | 38.10 | 2736.95 | 491.27 | 3228.22 | 217.12 | 0.0293 | 1105 | 2035 | 2560 |
LS Cable & System Standard
STAl Wire
Standard Diameter
(mm) | Tolerance of Dia.
(mm) |
Tensile Strength (kgf/mm2) | Elongation on 250mm(%) Min | Reference | |||||
Cross- sectional Area (mm2) | Weight
(kg/km) | breaking Load (kgf) | DC Resistance at 20℃ (Ω/km) | ||||||
Min. |
Avg | ||||||||
Min. | Avg (Min.) | ||||||||
2.6 | ±0.03 | 17.2 | 18.3 | 1.5 | 5.309 | 14.33 | 91.3 | 97.2 | 5.41 |
3.2 | ±0.04 | 16.5 | 17.6 | 1.7 | 8.042 | 21.71 | 133 | 142 | 3.57 |
3.38 | ±0.04 | 16.5 | 17.6 | 1.7 | 8.973 | 24.23 | 148 | 158 | 3.20 |
3.7 | ±0.04 | 16.5 | 17.2 | 1.8 | 10.75 | 29.03 | 177 | 185 | 2.67 |
4.0 | ±0.04 | 16.2 | 16.9 | 1.9 | 12.57 | 33.94 | 204 | 212 | 2.29 |
4.5 | ±0.04 | 16.2 | 16.9 | 2.0 | 15.90 | 42.93 | 258 | 269 | 1.81 |
Aluminum-clad INVAR Wire
Standard Diameter
(mm) | Tolerance of Dia.
(mm) | Tensile Strength
(kgf/mm2) | Elongation Min.
(%) | No. of Twists
(Nos.) | Conductivity
(%IACS) | Properties of Aluminum | Reference | |||||||
Thickness
(mm) | Wrapping | Aluminum Thickness (mm) | Cross- sectional Area (mm2) | Weight
(kg/km) | breaking Load (kgf) | Coefficient of Linear Expainsion | Modulus of Elasticity (kgf/mm2) | |||||||
15℃~230℃ (x10-6/℃) | 230℃~290℃ (x10-6/℃) | |||||||||||||
2.47 | ±0.05 | 110 | 1.5 | 20 | 14 | 0.06 | No separation between aluminum and invar core or no breakage | 0.15 | 4.790 | 34.02 | 527 | 3.7 | 10.8 | 15,500 |
2.6 | ±0.05 | 110 | 1.5 | 20 | 14 | 0.06 | 0.15 | 5.309 | 37.69 | 584 | 3.7 | 10.8 | 15,500 | |
3.1 | ±0.06 | 110 | 1.5 | 20 | 14 | 0.07 | 0.17 | 7.548 | 53.48 | 830 | 3.7 | 10.8 | 15,500 | |
3.2 | ±0.06 | 110 | 1.5 | 20 | 14 | 0.07 | 0.17 | 8.042 | 57.10 | 885 | 3.7 | 10.8 | 15,500 | |
3.38 | ±0.07 | 110 | 1.5 | 20 | 14 | 0.08 | 0.18 | 8.973 | 63.71 | 987 | 3.7 | 10.8 | 15,500 | |
3.5 | ±0.07 | 110 | 1.5 | 20 | 14 | 0.08 | 0.18 | 9.621 | 68.31 | 1.060 | 3.7 | 10.8 | 15,500 | |
High Tensile Strength Aluminum-clad INVAR Wire
Standard Diameter
(mm) | Tolerance of Dia.
(mm) | Tensile Strength
(kgf/mm2) | Elongation Min.
(%) | No. of Tweists
(Nos.) | Conductivity
(%IACS) | Properties of Aluminum | Reference | |||||||
Thickness
(mm) | Wrapping | Aluminum Thickness (mm) | Cross- sectional Area (mm2) | Weight
(kg/km) | breaking Load (kgf) | Coefficient of Linear Expainsion | Modulus of Elasticity (kgf/mm2) | |||||||
15℃~230℃ (x10-6/℃) | 230℃~290℃ (x10-6/℃) | |||||||||||||
2.47 | ±0.05 | 125 | 1.5 | 20 | 14 | 0.06 | No separation between aluminum and invar core or no breakage | 0.15 | 4.790 | 34.02 | 599 | 3.7 | 10.8 | 15,500 |
2.6 | ±0.05 | 120 | 1.5 | 20 | 14 | 0.06 | 0.15 | 5.309 | 37.69 | 637 | 3.7 | 10.8 | 15,500 | |
3.1 | ±0.06 | 120 | 1.5 | 20 | 14 | 0.07 | 0.17 | 7.548 | 53.48 | 906 | 3.7 | 10.8 | 15,500 | |
3.2 | ±0.06 | 120 | 1.5 | 20 | 14 | 0.07 | 0.17 | 8.042 | 57.10 | 965 | 3.7 | 10.8 | 15,500 | |
3.38 | ±0.07 | 120 | 1.5 | 20 | 14 | 0.08 | 0.18 | 8.973 | 63.71 | 1.077 | 3.7 | 10.8 | 15,500 | |
3.5 | ±0.07 | 120 | 1.5 | 20 | 14 | 0.08 | 0.18 | 9.621 | 68.31 | 1.155 | 3.7 | 10.8 | 15,500 | |
LS Cable & System Standard
STACIR / AW
Conductor Size
(mm2) | Stranding (Nos./mm) | Min. Breaking Load (kgf) | Overall Diameter
(mm) | Reference | ||||||||||
Cross-sectional Area (mm2) | Weight (kg/km) | Modulus of Elasticity (kgf/mm2) | Coefficient of Linear Expansion (10-6/℃) | DC Resistance at 20℃ (Ω/km) | Current Carrying Capacity (A) | |||||||||
STAl | INVAR | STAl | INVAR | Total | STAl | INVAR | Total | |||||||
160 | 30/2.6 | 7/2.6 | 6,140 | 18.20 | 159.30 | 37.16 | 196.46 | 441.7 | 265.2 | 706.9 | 8,040 | 16.0 | 0.1745 | 909 |
240 | 30/3.2 | 7/3.2 | 9,170 | 22.40 | 241.30 | 56.29 | 297.59 | 669.1 | 401.7 | 1070.8 | 8,040 | 16.0 | 0.1159 | 1,203 |
330 | 26/4.0 | 7/3.1 | 10,000 | 25.30 | 326.80 | 52.84 | 379.64 | 905.1 | 377.0 | 1282.1 | 7,580 | 17.5 | 0.0869 | 1,452 |
410 | 26/4.5 | 7/3.5 | 12,720 | 28.50 | 413.40 | 67.35 | 480.75 | 1145.5 | 480.6 | 1626.1 | 7,590 | 17.5 | 0.0686 | 1,708 |
480 (Rail) | 45/3.7 | 7/2.47 | 10,500 | 29.61 | 483.84 | 33.54 | 517.38 | 1340.7 | 239.3 | 1580.0 | 6,900 | 20.0 | 0.0600 | 1,812 |
480 (Cardinal) | 54/3.38 | 7/3.38 | 13,280 | 30.42 | 484.52 | 62.81 | 547.33 | 1343.5 | 452.2 | 1795.7 | 7,470 | 18.3 | 0.0591 | 1,846 |
Hi-STACIR/AW
Conductor Size
(mm2) | Stranding (Nos./mm) | Min. Breaking Load (kgf) | Overall Diameter
(mm) | Reference | ||||||||||
Cross-sectional Area (mm2) | Weight (kg/km) | Modulus of Elasticity (kgf/mm2) | Coefficient of Linear Expansion (10-6/℃) | DC Resistance at 20℃ (Ω/km) | Current Carrying Capacity (A) | |||||||||
STAl | INVAR | STAl | INVAR | Total | STAl | INVAR | Total | |||||||
160 | 30/2.6 | 7/2.6 | 6,500 | 18.20 | 159.30 | 37.16 | 196.46 | 441.7 | 265.2 | 706.9 | 8,040 | 16.0 | 0.1745 | 909 |
240 | 30/3.2 | 7/3.2 | 9,700 | 22.40 | 241.30 | 56.29 | 297.59 | 669.1 | 401.7 | 1070.8 | 8,040 | 16.0 | 0.1159 | 1,203 |
330 | 26/4.0 | 7/3.1 | 10,500 | 25.30 | 326.80 | 52.84 | 379.64 | 905.1 | 377.0 | 1282.1 | 7,580 | 17.5 | 0.0869 | 1,452 |
410 | 26/4.5 | 7/3.5 | 13,300 | 28.50 | 413.40 | 67.35 | 480.75 | 1145.5 | 480.6 | 1626.1 | 7,590 | 17.5 | 0.0686 | 1,708 |
480 (Rail) | 45/3.7 | 7/2.47 | 11,000 | 29.61 | 483.84 | 33.54 | 517.38 | 1340.7 | 239.3 | 1580.0 | 6,900 | 20.0 | 0.0600 | 1,812 |
480 (Cardinal) | 54/3.38 | 7/3.38 | 13,800 | 30.42 | 484.52 | 62.81 | 547.33 | 1343.5 | 452.2 | 1795.7 | 7,470 | 18.3 | 0.0591 | 1,846 |
Comparison with Conventional ACSR
Conductor Size (mm2) | Stranding
(Nos./mm) | Weight
(kg/km) | Overall Diameter (mm) | Breaking Load (kgf) | DC Resistant at 20℃ (Ω/km) | Modulus of Elasticity ① (kgf/mm2) | Coefficient of Linear Expansion ② (x10-6/℃) | Continuous Current Capacity (A) | ||
160 |
ACSR | HAl | 30/2.6 |
732.8 |
18.2 |
6,990 |
0.182 |
9,080 |
18.0 | 454 (90℃) |
St | 7/2.6 | |||||||||
Hi-STACIR/AW | STAl | 30/2.6 |
706.9 |
18.2 |
6,500 |
0.1745 |
8,040 (15,500) |
16.0 (3.7) | 909 (210℃) | |
INVAR | 7/2.6 | |||||||||
240 | ACSR | HAl | 30/3.2 | 1,110 | 22.4 | 10,210 | 0.139 | 9,080 | 18.0 | 593 (90℃) |
St | 7/3.2 | |||||||||
Hi-STACIR/AW | STAl | 30/3.2 |
1,070.8 |
22.4 |
9,700 |
0.1159 |
8,040 (15,500) |
16.0 (3.7) | 1,203 (210℃) | |
INVAR | 7/3.2 | |||||||||
330 | ACSR | HAl | 26/4.0 | 1,260 | 25.3 | 10,950 | 0.0873 | 8,360 | 19.0 | 714 (90℃) |
St | 7/3.1 | |||||||||
Hi-STACIR/AW | STAl | 26/4.0 | 1,282.1 | 25.3 | 10,500 | 0.0869 | 7,580 (15,500) | 17.5 (3.7) | 1,452 (210℃) | |
INVAR | 7/3.1 | |||||||||
410 | ACSR | HAl | 26/4.5 | 1,673 | 28.5 | 13,890 | 0.0702 | 8,360 | 19.0 | 829 (90℃) |
St | 7/3.5 | |||||||||
Hi-STACIR/AW | STAl | 26/4.5 |
1,626.1 |
28.5 |
13,300 |
0.0686 |
7,590 (15,500) |
17.5 (3.7) | 1,708 (210℃) | |
INVAR | 7/3.5 | |||||||||
480 (Rail) | ACSR | HAl | 45/3.7 | 1,599 | 29.61 | 11,800 | 0.05994 | 7,250 | 20.8 | 891 (90℃) |
St | 7/2.47 | |||||||||
Hi-STACIR/AW | STAl | 45/3.7 |
1,580 |
29.61 |
11,000 |
0.0600 |
6,900 (15,500) |
20.0 (3.7) | 1,812 (210℃) | |
INVAR | 7/2.47 | |||||||||
480 (Cardinal) | ACSR | HAl | 54/3.38 | 1,836 | 30.42 | 15,300 | 0.0599 | 7,990 | 19.5 | 899 (90℃) |
St | 7/3.38 | |||||||||
Hi-STACIR/AW | STAl | 54/3.38 | 1,795.7 | 30.42 | 13,800 | 0.0591 | 7,470 (15,500) | 18.3 (3.7) | 1,846 (210℃) | |
INVAR | 7/3.38 | |||||||||
