I show how to wire an outlet at the end of a run and the middle of the run. Outlets are also called receptacles.
In most homes, the outlet will be on a 15 amp circuit and will require a 15 amp outlet. In the kitchen, there may be a dedicated 20 amp line for small appliances. In this case you would want to wire a 20 amp outlet on this circuit.
When you are changing an existing outlet, check the amp ratings marked on the outlet and check the breaker that feeds that circuit. They should both match. If you have a 15 amp circuit, you would wire a 15 amp outlet to this circuit.
Household outlets have no moving parts, but do wear out over time. The main cause is the constant wear from plugging in and removing appliance cords. An outlet that does not hold an electrical cord firmly in place should be replaced. Also, older outlets made of hard plastic can crack over time and create a shock or fire hazard.
Another problem for outlets is a loose connection of the wires on the screw terminals. Wires can loosen over the years from vibrations in the home and use. The wires also expand and contract as they heat up while feeding a current to appliances.
You will wire an outlet in two basic ways; the end of a run, with one cable coming into the electrical box, or middle of a run, with two or more cables coming into the box.
I cover how to wire an outlet in both cases in this video.
Always turn off the electric to any circuit you are working on.