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Electrical Wiring

What metal is used for making electrical wire?

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September 13, 2011 11:02AM

Mainly copper.

Both copper and aluminum wire is used in the electrical trade. Copper in the smaller size wires but aluminum becomes more viable when bigger size wire is needed. This is usually 200 amp services and larger. When aluminum wire is used for a specific amperage, one size larger is required than when using copper. The money savings on aluminum wire over copper wire in the larger sizes is about 20%.