All Aluminium Alloy Conductor (AAAC) overhead Conductor
AAAC conductor are made out from aluminum-magnesium-silicon alloy of high electrical conductivity (min 53% IACS) containing magnesium (0.6-0.9%) & silicon (0.5-0.9%) to give it better mechanical properties after treatment. AAAC conductors are made out of aluminum alloy 6201.
The conductor is designed to get better strength to weight ratio and offer improved electrical properties, excellent sag-tension characteristics, and superior corrosion resistance when compared with ACSR. As compared to a conventional ACSR conductor, the lighter weight, comparable strength & current carrying capacity, lower electrical losses and superior corrosion resistance have given AAAC a wide acceptance in the distribution and medium & high voltage transmission lines..
IEC 1089 A2, IEC 1089 A3, ASTM B 399, BS 3242,DIN 48201
Physical Contents of Alluminium Alloy :
Density : 2.70 kgm/dm3 at 20°C
Coefficient of Linear Expansion : 23 x 10-6 / °C
Resistivity : 0.0326 Ohms mm2/m at 20°C
Constant Mass Temperature Coefficient (a) : 0.00360/ °C
Material : Heat treated Al. Mg. Si. Alloy
Conductor Aluminium alloy conductor Type AL2 to AL7 as per EN 50183 to BS 215
The all aluminium alloy conductors are used as power transmission and distribution lines. All aluminium alloy conductors are made up of one or more strands of aluminium alloy wire depending on the specific application.
IEC 1089 A2 Standard
| Code Number | Area | Number of wires | Diameter of wire | Diameter of conductor | Linear mass | Rated strenght | D.C. resistance |
|---|---|---|---|---|---|---|---|
| mm2 | mm | mm | Kg/km | kN | Ω/km | ||
| 16 | 18.4 | 7 | 1.83 | 5.49 | 50.4 | 5.43 | 1.7896 |
| 25 | 28.8 | 7 | 2.29 | 6.87 | 78.7 | 8.49 | 1.1453 |
| 40 | 46.0 | 7 | 2.89 | 8.67 | 125.9 | 13.58 | 0.7158 |
| 63 | 72.5 | 7 | 3.36 | 10.80 | 198.3 | 21.39 | 0.4545 |
| 100 | 115.0 | 19 | 2.78 | 13.90 | 316.3 | 33.95 | 0.2877 |
| 125 | 144.0 | 19 | 3.10 | 15.50 | 395.4 | 42.44 | 0.2302 |
| 160 | 184.0 | 19 | 3.51 | 17.55 | 506.1 | 54.32 | 0.1798 |
| 200 | 230.0 | 19 | 3.93 | 19.65 | 632.7 | 67.91 | 0.1439 |
| 250 | 288.0 | 19 | 4.39 | 21.95 | 790.8 | 84.68 | 0.1151 |
| 315 | 363.0 | 37 | 3.53 | 24.71 | 998.9 | 106.95 | 0.0916 |
| 400 | 460.0 | 37 | 3.98 | 27.86 | 1268.4 | 135.81 | 0.0721 |
| 450 | 518.0 | 37 | 4.22 | 29.54 | 1426.9 | 152.79 | 0.0641 |
| 500 | 575.0 | 37 | 4.45 | 31.15 | 1585.5 | 169. 76 | 0.0577 |
| 560 | 645.0 | 61 | 3.67 | 33.03 | 1778.4 | 190.14 | 0.0516 |
| 630 | 725.0 | 61 | 3.89 | 35.01 | 2000.7 | 213.90 | 0.0458 |
IEC 1089 A3
| Code number | Area | Number of wires | Diameter of wire | Diameter of conductor | Linear mass | Rated strength | D.C. resistance |
|---|---|---|---|---|---|---|---|
| mm2 | mm | mm | Kg/km | kN | Ω/km | ||
| 16 | 18.6 | 7 | 1.84 | 5.52 | 50.8 | 6.04 | 1.7896 |
| 25 | 29.0 | 7 | 2.30 | 6.90 | 79.5 | 9.44 | 1.1453 |
| 40 | 46.5 | 7 | 2.91 | 8.73 | 127.1 | 15.10 | 0.7158 |
| 63 | 73.2 | 7 | 3.65 | 10.95 | 200.2 | 23.06 | 0.4545 |
| 100 | 11.0 | 19 | 2.79 | 13.95 | 319.3 | 37.76 | 0.2877 |
| 125 | 145.0 | 19 | 3.12 | 15.60 | 399.2 | 47.20 | 0.2302 |
| 160 | 18.0 | 19 | 3.53 | 17.65 | 511.0 | 58.56 | 0.1798 |
| 200 | 232.0 | 19 | 3.95 | 19.75 | 638.7 | 73.20 | 0.1439 |
| 250 | 290.0 | 19 | 4.41 | 22.05 | 798.4 | 91.50 | 0.1151 |
| 315 | 366.0 | 37 | 3.55 | 24.85 | 1008.4 | 115.29 | 0. 0916 |
| 400 | 465.0 | 37 | 4.00 | 28.00 | 1280.5 | 146.40 | 0.0721 |
| 450 | 523.0 | 37 | 4.24 | 29.68 | 1440.5 | 164.70 | 0.0641 |
| 500 | 581.0 | 37 | 4.47 | 31.29 | 1600.6 | 183.00 | 0.0577 |
| 560 | 651.0 | 61 | 3.69 | 33.21 | 1795.3 | 204.95 | 0.0516 |
| 630 | 732.0 | 61 | 3.91 | 35.19 | 2019.8 | 230.58 | 0.0458 |
