How are the top 10 advantages of copper core cables?

I. Copper core cable is how the top ten advantages?1, low resistivity: aluminum core cable resistivity than copper core cable about 1.68 times higher.2, ductility is good: copper alloy ductility of 20 ~ 40%, electrical copper ductility in more than 30%, while the aluminum alloy is only 18%.3, high strength: the promised stress at room temperature, copper is higher than the aluminum alloy 7 to 28%. Especially at high temperatures, the difference between the two stress is very far. 4, fatigue: aluminum repeated bending easy to crack, copper is not easy. Elasticity targets, copper is also higher than aluminum about 1.7 ~ 1.8 times. 5, good stability, corrosion resistance: copper core oxidation, corrosion resistance, while the aluminum core is simply subject to oxidation and corrosion. 6, high current-carrying capacity: because of the low resistivity, the same cross-section of copper-core cables to be higher than the aluminum-core cables promised to the current-carrying capacity (which can be passed through the larger current) of about 30%. 7, low voltage loss: because of the low resistivity of the copper cable, in the same cross-section Flow through the same current. The voltage drop of copper core cable is small. The same transmission interval, can ensure higher voltage quality; in the promised voltage drop conditions, copper-core cable transmission can reach a longer distance, that is, the power supply covers a large area, conducive to the planning of the network, reduce the number of power supply points set. 8, low heating temperature: in the same current, the same cross-section of the copper-core cables with the heat than the aluminum-core cables are much smaller, making the operation safer. 9, low energy consumption: because of the low resistivity of the copper, compared with the aluminum cable, the copper-core cable is much smaller, making the operation safer. 9, low energy consumption: because of the low resistivity of copper, compared with the aluminum cable. Low resistivity, compared with aluminum cables, copper cables, low power loss, which is clear. This is conducive to the progress of power generation utilization and protection of the environment. 10, oxidation, corrosion resistance: copper-core cable connector function is stable, will not be oxidized and have an accident. Aluminum core cable joints are not stable often because of oxidation so that the touch resistance increases, heat and accidents. Therefore, the incident rate is much larger than the copper core cable.

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