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.
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.
Click here to cancel reply.
Sorry,At this time user registration is disabled. We will open registration soon!
Don't have an account? Click Here to Signup
© Copyright GreenAnswers.com LLC