Ten advantages of copper core cable

With the increasing competition in the wire and cable industry, M & A integration and capital operation among large wire and cable enterprises are becoming more and more frequent. Domestic excellent wire and cable production enterprises pay more and more attention to the research on the industry market, especially the in-depth research on the change of enterprise development environment and customer demand trend. As we all know, the vast majority of cable manufacturers only produce oxygen free copper cores. You may wonder why copper cables have any advantages over aluminum cables? Advantages of copper core cable over aluminum core cable 01 low resistivity: the resistivity of aluminum core cable is about 1.68 times higher than that of copper core cable. 02 good ductility: the ductility of copper alloy is 20 ~ 40%, that of electrical copper is more than 30%, and that of aluminum alloy is only 18%. 03 high strength: the stress of copper is 7 ~ 28% higher than that of aluminum at room temperature. Especially the stress at high temperature, the difference between the two is very far. 04 fatigue resistance: repeated bending of aluminum is easy to crack, while copper is not easy to crack. In terms of elastic targets, copper is also about 1.7 ~ 1.8 times higher than aluminum. 05 good stability and corrosion resistance: copper core is resistant to oxidation and corrosion, while aluminum core is simply subject to oxidation and corrosion. 06 large current carrying capacity: because of low resistivity, the current carrying capacity of copper core cable with the same section is about 30% higher than that of aluminum core cable (the maximum current that can be passed). 07 low voltage loss: because the resistivity of copper core cable is low, when the same current flows through the same section. The voltage drop of copper core cable is small, and the same transmission interval can ensure high voltage quality; Under the condition of allowable voltage drop, copper core cable transmission can reach a long distance, that is, the power supply coverage area is large, which is conducive to network planning and reduce the number of power supply points. 08 low heating temperature: under the same current, the heating capacity of copper core cable with the same section is much smaller than that of aluminum core cable, making the operation safer. 09 low energy consumption: due to the low resistivity of copper, compared with aluminum cable, the power loss of copper cable is low, which is conducive to improving the utilization rate of power generation and protecting the environment. 10 oxidation resistance and corrosion resistance: the connector of copper core cable has stable function and will not cause trouble due to oxidation. The unstable joint of aluminum core cable often causes trouble due to the increase of touch resistance and heating due to oxidation. Therefore, the incident rate is much higher than that of copper core cable. Compared with aluminum wire, copper wire is more flexible than aluminum wire! At the same time, copper wire has low resistivity and good ductility. The allowable stress of copper at room temperature is 7 ~ 28% higher than that of aluminum. In particular, the stress at high temperature is far from each other. Copper wire is resistant to oxidation and corrosion, and aluminum wire is easy to oxidation and corrosion. Due to the low resistivity of copper cable, the voltage drop of copper cable is very small when the same current flows through the same section. Therefore, the same transmission distance can ensure higher voltage quality. Under the allowable voltage conditions, copper cable transmission can reach a long distance, that is, the power supply coverage area is large, which is conducive to network planning and reduce the number of power supply points. The strong and excellent performance of copper can give users a better product experience, which is the fundamental reason why cable companies have always only produced copper core rather than aluminum core cables.