Learn how to install a junction box safely, from choosing the right box and mounting it correctly to making secure splices and following basic code-safe practices. I do it, and I see it done with approved inspection all the time. Ive had a. The smooth one is coax. They're power, running from a metal junction box in my basement ceiling up to an outlet just above the pictured floor boards. every time you walked by that area you'd probably glance up at it, even if it's eventually covered. Much of that original wiring has been replaced with modern NM cable, however the switch I replaces was on an older circuit with wires that look similar to Romex but. With the power off, cut the cloth braid wire to the right of the splice in the photo route the cable into the box.
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