一、Corrosion resistance

The corrosion resistance of pure aluminum is better than that of copper, but the corrosion resistance of aluminum alloy is better than that of pure aluminum, because the chemical elements such as rare earth added to aluminum alloy can increase the corrosion resistance of aluminum alloy, especially the electrochemical corrosion resistance. The long-term electrochemical corrosion problem of pure aluminum at the joint is solved.

二、Mechanical properties

First, the tensile strength and elongation. Compared with pure aluminum conductors, aluminum alloy conductors have greatly improved tensile strength due to the addition of special ingredients and special processing techniques, and the elongation rate has increased to 30%, making it safer and more reliable to use.

Second, bending performance. The bending performance of the aluminum core cable is very poor, and the bending is easy to break. The bending radius of the aluminum alloy power cable is 7 times the outer diameter of the cable, which is far better than the 10 specified in GB/T12706 "Minimum bending radius during cable installation" -20 times the cable outer diameter.

Third, flexibility. As long as the pure aluminum cable is twisted at a certain angle for a few times, the conductor will crack or break, which is easy to cause accidents, while the aluminum alloy power cable can withstand dozens of bends, eliminating the accidents in the installation and use of pure aluminum cables in the past. Hidden dangers greatly improve safety and reliability.

三、 Conductivity

Aluminum alloy conductor is an emerging conductor material formed by adding rare earth, magnesium, copper, iron and other elements to pure aluminum through alloy technology. As we all know, after adding other alloying elements to aluminum, the electrical conductivity will decrease, and through process control, the electrical conductivity can be restored to a level close to that of pure aluminum, making it have a current carrying capacity similar to that of pure aluminum.

四、Creep resistance

Pure aluminum has poor creep resistance. Thermal expansion and contraction caused by power-on and power-off will cause a large amount of creep at the connection. After a long time, it will relax, and the contact resistance will increase and cause overheating, which is easy to cause accidents. The creep resistance of AA8000 series aluminum alloy is 300% of that of pure aluminum conductor, which greatly reduces the possibility of cable joint slack and improves the connection of conductors.