When did we start using copper for wiring?



  1. 0 Votes

    In 1877, Thomas Doolittle, a brass mill man developed hard drawn copper wiring that could replace the previously used iron wiring that was being used in the telegraph systems. 

  2. 0 Votes

    Copper has been used for wiring since wiring was invented and is the only metal approved for wiring by all of the nation’s electrical codes, according to copper.org. The History of Electric Wires and Cables, by Robert Monro Black, even discusses the use of copper wiring in the submarine telegraph cables of the 1850s.

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