What are the advantages of copper core cables that can be categorized?

1, low resistivity: the resistivity of aluminum core cable is about 1.68 times higher than that of copper core cable.
2, good ductility: the ductility of copper alloy is 20~40%, the ductility of copper for electrician is more than 30%, while aluminum alloy is only 18%.
3, high strength: the allowable stress at room temperature, copper can reach 20, aluminum 15.6kgt/mm2. tensile strength limit, copper can reach 45kgt/mm2, aluminum 42kgt/mm2. copper than aluminum were higher than 7-28%. Especially at high temperatures of stress, copper in 400oc when there are 9~12kgt/mm2, while aluminum in 260oc when the rapid decline to 3.5kgt/mm2.
4, anti-fatigue: aluminum is easy to break repeated bending, copper is not easy. Elasticity indicators, copper is also higher than aluminum about 1.7 ~ 1.8 times.
5, good stability, corrosion resistance: copper core oxidation, corrosion resistance. Copper core cable connector performance is stable, not due to oxidation and accidents. Aluminum core cable connectors are unstable, often due to oxidation to increase the contact resistance, heat and accidents. Therefore, the accident rate is much larger than the copper core cable.
6, large current-carrying capacity: due to the low resistivity, the same cross-section of copper-core cable than aluminum-core cable to allow the current-carrying capacity (can be passed through the larger current) is about 30% higher.
7, low voltage loss: due to the low resistivity of copper-core cable, in the same cross-section of the same current flowing through the case, the copper-core cable voltage drop is small. Therefore, the same transmission distance, can ensure higher voltage quality; or, in the allowed voltage drop conditions, copper-core cable transmission can reach a longer distance, that is, the power supply covers a large area, which is conducive to the planning of the network, reduce the number of power supply points set.
8, low heat temperature: in the same current, the same cross-section of copper-core cable heat than aluminum-core cable is much smaller, making the operation more secure.
9, low energy consumption: due to the low resistivity of copper, compared with aluminum cables, copper cables, low power loss, which is conducive to improving the utilization rate of power generation and protection of the environment.
10, construction convenience: due to the copper core flexibility, allowing a small radius of bend, so easy to bend, easy to wear pipe; due to the copper core fatigue resistance, repeated bending is not easy to break, so easy to connect; and due to the high mechanical strength of the copper core can withstand a large mechanical tension, to the construction of the construction of the laying of a great deal of convenience, but also for the creation of the conditions for the mechanization of the construction.

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