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China AACSR ASTM B711 Steel Core Aluminum Alloy Conductor - Reliable Suppliers & Factory for High Voltage Transmission
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Optimal Sectional Area
Engineered with balanced Aluminum Alloy and Steel ratios for superior electrical conductivity and mechanical tension support.
High Rated Strength
Designed to withstand heavy mechanical loads with rated tensile strength ranging up to 489 kN for long-span installations.
Low D.C. Resistance
Optimized at 20°C reference temperature to minimize power transmission losses across high-voltage distribution networks.
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| Sectional Area | Wire Diameter & Stranding | Diameter of Conductor | Linear Mass | Rated Strength | Max.D.C. Resistance at 20℃ | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Total | Aluminum alloy | Steel | Aluminum alloy | Steel | ||||||
| mm² | mm² | mm² | mm | No | mm | No | mm | kg/km | kN | Ω/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
What is the relationship between sectional area and D.C. resistance at 20℃?
There is an inverse relationship: as the total sectional area of the conductor increases, the maximum D.C. resistance decreases. For example, a 163 mm² conductor has a resistance of 0.240 Ω/km, whereas a larger 1352 mm² conductor reduces resistance to 0.0270 Ω/km, optimizing transmission efficiency.
How does the steel core affect the rated strength of these conductors?
The steel core primarily provides the mechanical tensile strength. Conductors with larger steel cross-sectional areas or higher steel wire counts exhibit significantly higher rated strength. For instance, the 491 mm² conductor (with 91 mm² steel) offers a rated strength of 237 kN, compared to 206 kN for the 465 mm² conductor (with 65 mm² steel).
What is the typical stranding configuration for the steel and aluminum alloy parts?
Typical configurations use 26, 30, 54, or 84 aluminum alloy wires stranded over a core of 7 or 19 steel wires. The specific configuration depends on the target balance between current-carrying capacity, weight, and mechanical strength requirements.
What range of linear mass is available within this product line?
The linear mass starts at 560 kg/km for the 163 mm² conductor and scales up to 4250 kg/km for the largest 1352 mm² conductor, allowing system designers to choose the optimal weight-to-strength ratio for overhead line spans.
How does the conductor diameter scale with the sectional area?
The outer diameter of the conductor scales proportionally with the sectional area. It begins at 16.6 mm for the 163 mm² total sectional area and increases up to 47.8 mm for the 1352 mm² total sectional area.