Leave the device hanging free so it doesn’t make contact with anything and test it to be sure the wiring is correct. Flip the switch on and turn the power back on at the breaker box to test the light circuit. Use a receptacle analyzer to test a receptacle for proper wiring. If there’s a problem with the wiring turn the power off again and correct the problem.
This page offers some options for locating an electrical source for a new wall receptacle or a light fixture, and running the new cable required. To make this job easier, it’s best to have a second person at one end or the other of a new run, to sight the end of the fish tape and help guide cable. Also be sure to always turn off the affected circuits before working on household electricity.
Electricity that is flowing from one place to another is called current. The volume of electrical current is measured in amperes or amps.
A rigid, flat metal tape used to run electrical cable through a finished wall or ceiling. The rigid nature of the tape makes it possible to push it past most obstructions in the wall cavity by turning the reel to either side. See Run New Wiring for more about fishing cable.