Light Wiring Diagram With Switch. Light wiring diagram, three way switch, old cable colours. To attract a cable, simply click on the attract lines option on the left hand side of the drawing location.
Diagrams coupled with some instructions to help you on your way to wiring a single switch. Wiring diagram for double powerpoint with extra switch. With alternate light switch wiring, an nm cable supplies line voltage from the electrical panel to a light fixture outlet box.
The common is for the live wire that supplies the input voltage to the switch.
The schematic representations for switch actions are presented in the table below. Sometimes it is handy to have an outlet controlled by a switch. Another nm cable connects from the light fixture box to the switch box. I’m including this method for reference in case you find it used in your house wiring but would not recommend this approach in a domestic environment.