Low resistivity: The resistivity of aluminum core cable is about 1.68 times higher than that of copper core cable.

Good ductility: The elongation of copper alloy is 20~40%, and that of electrical copper is more than 30%, while that of aluminum alloy is only 18%.

High strength: The allowable stress at normal temperature, copper is 7~28% higher than aluminum. Especially at high temperatures, the stress difference between the two is even greater.

Anti-fatigue: Aluminum material is easy to break when bent repeatedly, while copper is not. In terms of elastic index, copper is also about 1.7~1.8 times higher than aluminum.

Good stability and corrosion resistance: The copper core is anti-oxidation and corrosion resistant, while the aluminum core is prone to oxidation and corrosion.

Large current carrying capacity: Due to the low resistivity, the copper core cable with the same cross-section has a 30% higher current carrying capacity (the maximum current that can be passed) than the aluminum core cable.

Low voltage loss: Due to the low resistivity of copper core cable, the voltage drop of copper core cable is small when the same current flows through the same cross-section. The same transmission distance can ensure a higher voltage quality; under the allowable voltage drop condition, the copper core cable can transmit electricity to a longer distance, that is, the power supply coverage area is large, which is conducive to the network planning and reduces the number of power supply points.

Low heating temperature: Under the same current, the heat generation of copper core cable with the same cross-section is much smaller than that of aluminum core cable, which makes the operation safer.

Low energy consumption: Due to the low resistivity of copper, the energy loss of copper cable is lower than that of aluminum cable, which is obvious. This is conducive to improving the power generation utilization rate and protecting the environment.

Anti-oxidation and corrosion resistance: The connector of the copper core cable has stable performance and will not cause accidents due to oxidation. The connector of the aluminum core cable is unstable and often causes accidents due to increased contact resistance and heating due to oxidation. Therefore, the accident rate is much higher than that of the copper core cables.

Convenient construction: Copper core is flexible, and has a small allowable bending radius, so it is convenient to bend and easy to pipe; Copper core is anti-fatigue and not easy to break when bent repeatedly, so it is convenient to wire; The mechanical strength of copper core is high, can withstand large mechanical tension, which brings great convenience to the construction and laying, and also creates conditions for mechanized construction.