STACIR/AW conductor, as known, Super Thermal Alloy Conductor Invar Reinforced (STACIR)ACCC? INVAR is a metal alloy with 36% nickel in the steel. STACIR/AW conductors are suitable for re-conductor applications. The capacity of existing transmission lines can be increased by simply replacing the existing conductors without any modifications to the towers.
STACIR/AW conductor is a new type of overhead conductor. The use of trapezoidal wire increases the cross-sectional area of the conductor so that the conductor has the effect of increasing the conductive capacity.
Under the same size, STACIR/AW conductors have better current carrying capacity than traditional conductors.
At the same time, the INVAR conductor is composed of an aluminum-clad invar core and thermal-resistant aluminum alloy wires. This conductor is suitable for old-line modification. It can keep the same sag while increasing capacity.
The main aspect of this type of conductor is the possibility of sliding between the outer layer and the core. Steel and aluminum are independent, so at high temperatures, the outer layer may stay on the steel core.
The outer conductive layer is made of super heat-resistant Al-Zr alloy, and the working temperature can reach 210°C.
INVAR core and outer layer independently have knee points at the installation temperature
Limit the sag as the temperature increases
The thermal expansion coefficient above the knee point related to the INVAR core maintains the mechanical strength of the conductor, and the continuous working temperature is up to 210° C
This technique requires a skilled installation expert stage.
It is suitable for ACSR overhead line replacement on flat land or with small level differences.
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HTLS Conductor Products --- Aluminum Conductor Steel Supported-ACSS and ACSS/TW
| Code name | Nominal aluminum area mm2 | Stranding structure | Total sectional area | Overall Diameter | |||
| Al. No. | Al. Dia. | St. No. | St. Dia | mm2 | mm | ||
| Mole | 10 | 6 | 1.50 | 1 | 1.50 | 12.39 | 4.50 |
| Squirrel | 20 | 6 | 2.11 | 1 | 2.11 | 24.43 | 6.33 |
| Gopher | 25 | 6 | 2.36 | 1 | 2.36 | 30.62 | 7.08 |
| Weasel | 30 | 6 | 2.59 | 1 | 2.59 | 36.88 | 7.77 |
| Fox | 35 | 6 | 2.79 | 1 | 2.79 | 42.77 | 8.37 |
| Ferret | 40 | 6 | 3.00 | 1 | 3.00 | 49.48 | 9.00 |
| Rabbit | 50 | 6 | 3.35 | 1 | 3.35 | 61.70 | 10.05 |
| Mink | 60 | 6 | 3.66 | 1 | 3.66 | 73.71 | 10.98 |
| Skunk | 60 | 12 | 2.59 | 7 | 2.59 | 100.30 | 12.95 |
| Beaver | 70 | 6 | 3.99 | 1 | 3.99 | 87.29 | 11.97 |
| Horse | 70 | 12 | 2.79 | 7 | 2.79 | 116.20 | 13.95 |
| Racoon | 75 | 6 | 4.10 | 1 | 4.10 | 92.40 | 12.30 |
| Otter | 80 | 6 | 4.22 | 1 | 4.22 | 97.86 | 13.98 |
| Cat | 90 | 6 | 4.50 | 1 | 4.50 | 111.30 | 15.90 |
| Hare | 100 | 6 | 4.72 | 1 | 4.72 | 122.50 | 17.50 |
| Dog | 100 | 6 | 4.72 | 7 | 1.57 | 118.50 | 14.15 |
| Hyena | 100 | 7 | 4.39 | 7 | 1.93 | 126.20 | 14.57 |
| Leopard | 125 | 8 | 5.28 | 7 | 1.75 | 148.10 | 15.81 |
| Coyote | 125 | 26 | 2.54 | 7 | 1.91 | 152.20 | 15.89 |
| Congar | 125 | 18 | 3.05 | 1 | 3.05 | 137.50 | 15.25 |
| Tiger | 125 | 30 | 2.36 | 7 | 2.36 | 161.70 | 16.52 |
| Dingo | 150 | 18 | 3.35 | 1 | 3.35 | 167.50 | 16.75 |
| Wolf | 150 | 30 | 2.59 | 7 | 2.59 | 194.90 | 18.13 |
| Caracal | 175 | 18 | 3.61 | 1 | 3.61 | 194.50 | 18.05 |
| Lynx | 175 | 30 | 2.79 | 7 | 2.79 | 326.20 | 19.53 |
| Jaguar | 200 | 18 | 3.86 | 1 | 3.86 | 222.30 | 19.30 |
| Panther | 200 | 30 | 3.00 | 7 | 3.00 | 261.50 | 21.00 |
| Lion | 225 | 30 | 3.18 | 7 | 3.18 | 294.20 | 22.26 |
| Bear | 250 | 30 | 3.35 | 7 | 3.35 | 325.60 | 23.45 |
| Goat | 300 | 30 | 3.71 | 7 | 3.71 | 400.00 | 25.97 |
| Sheep | 350 | 30 | 3.99 | 7 | 3.99 | 461.40 | 27.93 |
| Antilope | 350 | 54 | 2.97 | 7 | 2.97 | 421.50 | 26.73 |
| Bizon | 350 | 54 | 3.00 | 7 | 3.00 | 431.30 | 27.00 |
| Deer | 400 | 30 | 4.27 | 7 | 4.27 | 529.50 | 28.89 |
| Zebra | 400 | 54 | 3.18 | 7 | 3.18 | 484.50 | 28.62 |
| ELK | 450 | 30 | 4.50 | 7 | 4.50 | 588.30 | 31.50 |
| Camel | 450 | 54 | 3.35 | 7 | 3.35 | 536.80 | 30.15 |
| Moose | 500 | 54 | 3.53 | 7 | 3.53 | 597.20 | 31.77 |
| Finch | 500 | 54 | 3.65 | 19 | 2.29 | 642.90 | 33.35 |
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