Aluminum Conductor Super Thermal Alloy Conductor Invar Reinforced (STACIR) Conductor
Product Description
Super Thermal Alloy Conductor Invar Reinforced (STACIR) Conductor
Under the same size, STACIR/AW conductors have better current carrying capacity than traditional conductors. At the same time, INVAR conductor is composed of aluminumclad 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.
The main features of this product series are:
INVAR core and outer layer independently have knee points at 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 replacement on flat land or with small level differences.
| ACSR | Aluminium conductro steel reinforced |
| AAC | All Aluminium conductor |
| AAAC | All aluminium alloy conductor |
| PROPERTIES | STACIR (ACSR MOOSE EQUIVALENT) | STACIR ( ACSR ZEBRA EQUIVALENT) | STACIR (ACSR PANTHER EQUIVALENT) | |||
| Typical factors | 3.53 mm | 0.1390 in | 3.18 mm | 0.1252 in | 3.00 mm | 0.1181 in |
| Reference specifications | IEC 62004 | IEC 62004 | IEC 62004 | |||
| Total cross section area | 597.00 mm2 | 0.9254 in2 | 484.50 mm2 | 0.751 in2 | 261.50 mm2 | 0.4054 in2 |
| Conductive wire | Al Zr AT3 | Al Zr AT3 | Al Zr AT1 | |||
| Core wire | Aluminium clad Invar | Aluminium clad Invar | Aluminium clad Invar | |||
| Conductor diameter | 31.77mm | 1.2508 in | 28.62 mm | 1.1268 in | 21.00 mm | 0.8268 in |
| Weight | 1993 kg/km | 1339.2 lbs/mile | 1582 kg/km | 1063.1 lbs/mile | 939 kg/km | 631 lbs/mile |
| Ultimate tensile strength | 14641 kg | 32277.84 lbs | 11968 kg | 26384.89 lbs | 8436 kg | 18598.17 lbs |
| DC resistance at 20°C temperature | 0.06 Ω/km | 0.09Ω /mile | 0.07Ω /km | 0.11Ω /mile | 0.13 Ω/km | 0.21Ω /mile |
| Maximum operating temperature | 210°C | 410°F | 210°C | 410°F | 210°C | 410°F |
| Current carrying capacity at maximum operating temperature | 1871 Amp | 1626 Amp | 1040 Amp | |||
We also can offer other full range of overhead conductor, if you have any need, Just feel free to contact our sales team!

Qifan Cable has ability in producing many varieties of cables, such as High Voltage cables, Medium Voltage cables, Low Voltage cables, Control cables, Instrument cables, Building wires, Rubber cables etc. Qifan Cable has sold its products to over 30 countries and regions in Asia, Europe, Oceania, America and Africa. As a result, they are widely used in such industries as water conservancy, electricity, metallurgy, petrochemical, railway, transportation, communication, construction, urban, infrastructure construction, etc.
Since its establishment, Qifan Cable has abided by the operation principle of quality foremost. It took the lead in passing ISO 9001:2000 quality system certification in 2006 and ISO 14001:2004 environmental management system certification.
Qifan Cable-Make pioneering efforts and forge ahead!
Super Thermal Alloy Conductor: The conductor is made of a super thermal alloy material. This material is specifically engineered to have high thermal conductivity, allowing for efficient heat dissipation during power transmission.
Invar Reinforced: The conductor is reinforced with Invar, which is a nickel-iron alloy known for its low coefficient of thermal expansion. Invar helps to minimize conductor sag or elongation due to temperature changes, ensuring the stability and reliability of the power transmission line.
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