What are The Advantages of Copper Core Cables?

Wire and cable are generally divided into copper core cables and aluminum core cables. Copper core cables are more expensive than aluminum core cables, but the demand for copper core cables is often greater. What are the advantages of copper core cables over aluminum core cables?

1. The resistivity of aluminum core cables is about 1.68 times higher than that of copper core cables.

2. The allowable stress of copper core cables is 7~28% higher than aluminum respectively at ordinary temperature. Especially the stress at high temperatures, the difference between the two is even greater.

3. The ductility of copper alloy is 20-40%, the ductility of electrical copper is more than 30%, while the ductility of aluminum alloy is only 18%.

4. The copper core cables are resistant to oxidation and corrosion, while the aluminum core cables are susceptible to oxidation and corrosion. 

5. Aluminum is easy to break after repeated bending, while copper is not easy. In terms of plasticity index, copper core cables are also about 1.7 to 1.8 times higher than aluminum core cables.

6. Due to the low resistivity, the copper core cables with the same cross-section is about 30% higher than the allowable current-carrying capacity (the maximum current that can pass) of the aluminum core cable.

7. Under the same current, the copper core cables with the same cross-section have much smaller heat than the aluminum core cables, which makes the operation safer.

8. Due to the low electrical resistivity of copper, it is obvious that copper core cables have low power loss compared to aluminum core cables. This is conducive to improving the utilization of power generation and protecting the environment.

9. Copper core cables can guarantee higher voltage quality at the same transmission distance. Under the allowable voltage drop condition, copper core cables can reach a longer distance for power transmission, that is, the power supply covers a large area, which is beneficial to network planning. Reduce the number of power supply points.

JZD cable manufacturer provides copper core cables, aluminum core cables, house wiring cables, industrial cables, and others. Welcome to contact us.