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China AACSR ASTM B711 Steel Core Aluminum Alloy Conductor - Supplier & Factory for High-Voltage Transmission Lines
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Optimized Sectional Area
Features a balanced configuration of aluminum alloy and steel cores to maximize conductivity and tensile strength.
Excellent Mechanical Strength
Engineered with high rated strength capacity, making it perfect for long-span overhead transmission lines.
Low Electrical Resistance
Designed to minimize power losses during transmission with strict control over D.C. resistance at 20℃.
| Sectional Area (mm²) | Wire Diameter & Stranding (mm / No) | Diameter of Conductor (mm) |
Linear Mass (kg/km) |
Rated Strength (kN) |
Max.D.C. Resistance at 20℃ (Ω/km) |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Total | Aluminum alloy | Steel | Aluminum alloy | Steel | ||||||
| mm² | mm² | mm² | mm | No | mm | No | mm | kg/km | kN | Ohms/km |
| 163 | 140 | 23 | 2.62 | 26 | 2.04 | 7 | 16.6 | 560 | 74.9 | 0.240 |
| 173 | 140 | 33 | 2.44 | 30 | 2.44 | 7 | 17.1 | 650 | 87.4 | 0.240 |
| 186 | 160 | 26 | 2.80 | 26 | 2.18 | 7 | 17.7 | 645 | 85.5 | 0.210 |
| 198 | 160 | 38 | 2.61 | 30 | 2.61 | 7 | 18.3 | 740 | 100 | 0.210 |
| 209 | 180 | 29 | 2.97 | 26 | 2.31 | 7 | 18.8 | 725 | 195 | 0.187 |
| 222 | 180 | 42 | 2.76 | 30 | 2.76 | 7 | 19.3 | 825 | 112 | 0.187 |
| 232 | 200 | 32 | 3.13 | 26 | 2.43 | 7 | 19.8 | 800 | 105 | 0.168 |
| 247 | 200 | 47 | 2.91 | 30 | 2.91 | 7 | 20.4 | 920 | 124 | 0.168 |
| 260 | 224 | 36 | 3.31 | 26 | 2.57 | 7 | 21.0 | 900 | 115 | 0.150 |
| 276 | 224 | 52 | 3.08 | 30 | 3.08 | 7 | 21.6 | 1025 | 139 | 0.150 |
| 291 | 250 | 41 | 3.50 | 26 | 2.72 | 7 | 22.2 | 1010 | 128 | 0.135 |
| 308 | 250 | 58 | 3.26 | 30 | 3.26 | 7 | 22.8 | 1145 | 152 | 0.135 |
| 326 | 280 | 46 | 3.70 | 26 | 2.88 | 7 | 23.4 | 1140 | 144 | 0.120 |
| 345 | 280 | 65 | 3.45 | 30 | 3.45 | 7 | 24.2 | 1280 | 171 | 0.120 |
| 367 | 315 | 52 | 3.93 | 26 | 3.06 | 7 | 24.9 | 1276 | 162 | 0.107 |
| 387 | 315 | 72 | 3.66 | 30 | 2.20 | 19 | 25.6 | 1433 | 190 | 0.107 |
| 413 | 355 | 58 | 4.17 | 26 | 3.24 | 7 | 26.4 | 1433 | 182 | 0.0950 |
| 436 | 355 | 81 | 3.88 | 30 | 2.33 | 19 | 27.2 | 1614 | 210 | 0.0950 |
| 465 | 400 | 65 | 4.43 | 26 | 3.45 | 7 | 28.1 | 1612 | 206 | 0.0842 |
| 491 | 400 | 91 | 4.12 | 30 | 2.47 | 19 | 28.8 | 1816 | 237 | 0.0842 |
| 509 | 450 | 59 | 3.26 | 54 | 1.98 | 19 | 29.5 | 1703 | 208 | 0.0748 |
| 563 | 500 | 63 | 3.43 | 54 | 2.06 | 19 | 30.9 | 1873 | 228 | 0.0673 |
| 631 | 560 | 71 | 3.63 | 54 | 2.18 | 19 | 32.7 | 2101 | 256 | 0.06010 |
| 710 | 630 | 80 | 3.85 | 54 | 2.31 | 19 | 34.6 | 2365 | 285 | 0.0534 |
| 800 | 710 | 90 | 4.09 | 54 | 2.45 | 19 | 36.8 | 2665 | 321 | 0.0474 |
| 901 | 800 | 101 | 4.43 | 54 | 2.60 | 19 | 39.0 | 3000 | 361 | 0.0420 |
| 973 | 900 | 73 | 3.69 | 84 | 2.21 | 19 | 40.6 | 3062 | 353 | 0.0374 |
| 1081 | 1000 | 81 | 3.89 | 84 | 2.33 | 19 | 42.8 | 3395 | 389 | 0.0337 |
| 1211 | 1120 | 91 | 4.12 | 84 | 2.47 | 19 | 45.3 | 3803 | 437 | 0.0300 |
| 1352 | 1250 | 102 | 4.35 | 84 | 2.61 | 19 | 47.8 | 4250 | 489 | 0.0270 |
Frequently Asked Questions (FAQ)
What are the main applications of these conductors?
These conductors are primarily used for overhead transmission and distribution lines, especially in long-span installations, river crossings, and heavy loading areas where high tensile strength and durability are required.
How does the steel core improve conductor performance?
The steel core provides the necessary mechanical strength to support the conductor over long spans. It reduces sag under high mechanical loads and extreme weather conditions, allowing for longer distances between transmission towers.
What is the significance of the Max. D.C. Resistance at 20℃?
The Max. D.C. Resistance at 20℃ measures the electrical resistance of the conductor per kilometer. A lower resistance value means higher electrical efficiency and reduced power losses during long-distance energy transmission.
How does sectional area affect the conductor's capacity?
A larger sectional area allows the conductor to carry higher electrical current (ampacity) while reducing resistance. However, it also increases the linear mass, which requires stronger supporting structures.
Are these conductors resistant to environmental corrosion?
Yes, the aluminum alloy provides excellent natural corrosion resistance. In highly corrosive environments, the steel core can also be galvanized or greased to provide extra protection against moisture and atmospheric chemical agents.