Non-ferrous metals and alloys are metals that do not incorporate iron as the base metal. Non-ferrous metals used to make wire and strand include aluminum, copper, and nickel. They are used as ...
wire or cable. Install galvanized rigid metal electrical conduit with individual insulated wires six inches deep. The wires ...
Plastic and metal electrical boxes sometimes have crossover uses. For example, plastic-sheathed cable (also called NM, for ...