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Why do most wires and cables use copper as cores?

Release time:

2023/11/28 09:35

Why do most wires and cables use copper as the core? Because copper ranks second in the conductivity of all non-ferrous metals, the copper content in the cable cannot be less than 99.5%. So why not use silver, which is the first conductivity, to make the core? Mainly because silver has a high cost, low toughness, and is easy to break. In addition to copper, aluminum is also a more commonly used cable material, aluminum cost is low, light weight, but there are disadvantages such as oxide, so long-distance overhead transmission of aluminum wire is more suitable, for copper wire to carry a larger current, so when the engineering scene needs, it is best to choose copper wire as a wire.

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