We all know that copper and aluminum is the main material of wire and cable, so who knows copper conductor cable and aluminum conductor cable compared what advantages?
1. Low resistivity: the resistivity of copper conductor cable is 1.68 times lower than that of aluminum conductor cable with low energy consumption.
2. Good ductility: the ductility rate of copper used in electrical engineering is above 30%, while that of aluminum alloy is only 18%.
3. High strength: Copper has a much higher promised strength than aluminum. At room temperature, the promised strength of copper is 7~28% higher than that of aluminum. At high temperature, the difference is even greater.
4. Fatigue resistance: Copper is not easy to break after repeated bending, while aluminum is easy to break after repeated bending. In terms of elasticity, copper is 1.7~1.8 times higher than aluminum.
5. Good stability and corrosion resistance: Aluminum core is easy to be oxidized and corroded, while copper core is relatively stable and has strong oxidation resistance.
6. High carrying capacity: Copper core has low resistivity, so the maximum current that copper core cable can pass through is 30% higher than that of aluminum core.
7. Low heating temperature: At the same current, the calorification of copper conductor cable with the same section is much less than that of aluminum conductor cable, which makes the operation safer.
8. Low energy consumption: Due to the low resistivity of copper, compared with aluminum cables, copper cables have a low power loss, which is obvious. This will help improve the efficiency of electricity generation and protect the environment.
9. Oxidation resistance and corrosion resistance: The connector of copper core cable has stable performance and will not cause accidents due to oxidation. The joint instability of aluminum-core cable often causes accidents due to the increase of contact resistance and heating due to oxidation. Therefore, the accident rate is much higher than that of copper cable.
10. Convenient construction: the copper core is flexible and the allowable bending radius is small, so it is convenient to turn and easy to pass through the pipe; Copper core is resistant to fatigue and is not easy to break due to repeated bending, so it is convenient to connect. The copper core has high mechanical strength and can withstand greater mechanical tension, which brings great convenience for construction and also creates conditions for mechanized construction.