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THE Aluminum alloy cable
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THE Aluminum alloy cable
www.rfcable.com.cn/enAt present, copper core cable occupies an absolute advantage in the power cable industry. In contrast, aluminum alloy cable develops slowly. However, in recent years, due to the lack of copper resources and the rising price of copper, cable manufacturers have gradually turned their attention to aluminum alloy materials. So, what are the differences between aluminum alloy cable and copper core cable? Now let's talk about some advantages of aluminum alloy cable in terms of cable installation and construction.
1. Bending property
The bending radius of aluminum alloy conductor cable is 7 times of the cable diameter, while that of copper conductor cable is 10 ~ 20 times of the cable diameter. Aluminum alloy cables are easier to bend during installation, so it can effectively reduce installation cost and accident risk.
2. Anti elasticity
The rebound performance of aluminum alloy conductor is 40% less than that of copper (under the same room temperature, the stress is released after bending both aluminum alloy conductor cable and copper conductor cable for 90 °, and the rebound angle of aluminum alloy conductor cable is only 0.6 times that of copper conductor cable). The rebound stress caused by conductor during installation will be greatly reduced for construction convenience.
3. Flexibility
The flexibility of aluminum alloy conductor can be 25% higher than that of copper, with good plasticity, high fatigue strength and easy processing and forming. The bending times are much higher than those of pure aluminum and copper conductors. After repeated bending, there will be no crack or fracture, which can improve the safety of cable line.
4. Elongation
Elongation is not only a sign of the quality of the cable and the size of the external force, but also an important index to test the mechanical properties of the cable conductor. After annealing, the elongation of aluminum alloy conductor cable can be increased to 30%, while that of copper conductor cable is 25%. It can be seen that the aluminum alloy cable has stronger flexibility than the traditional copper cable, so the tension required for laying is much smaller than that of copper cable.