So what you should see if you have correct 3 wire electrical cable romex is a black power white neutral and now a 3rd red wire. House wiring cable known as romex cable comes in a variety of sizes and combinations.
4 Way Switch Wiring Diagram House Electrical Wiring Diagram
Romex wiring diagram. In this article well show you some house wiring basicshow to position outlet and switch boxes and run the electrical cable between them. The wiring was romex type nm cable which was installed above the membrane fabric and this was acceptable in the state code here in california. Romex is a common type of residential wiring that is categorized by the national electrical code nec as underground feeder uf or non metallic sheathed cable nm and nmc. The coating on nmc cable is non conducting flame resistant and moisture resistant. Regardless of what 3 way switch wiring diagram youre following youll need to use a 3 wire cable to connect the two 3 way light switches. Plastic boxes and flexible nonmetallic cable commonly called romex put electrical wiring projects within the skill range of every dedicated diyer.
I am just going to cover a few basics for choosing the proper romex cable for use on circuits that i discuss on this website. Installing and supporting electrical wiring this is very similar to installing electrical wiring under a conventional home where the wiring is well supported and secured to the floor. How to install romex or nm type electrical cable. We wont cover many other house wiring details. Common practices and methods for installing home electrical wiring beware of damaged or defective electrical cable electrical cable bends and kinks. Nm and nmc conductors are composed of two or more insulated conductors contained in a non metallic sheath.
Gallery of Romex Wiring Diagram
