"Knob and Tube" refers to a type of wiring commonly used from the late 1800’s until the 1940’s. At the time it was cost ...
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Understanding Electrical Wire Color CodesFirst on the electrical wire color code is black. “Black wires are most used as ‘hot’ wires in residential systems,” says master electrician Allyson Saling with Frontdoor home services app. “Hot or ...
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