Articles about Outlet and Switch Wiring
How to Identify the Electrical Wiring for a Combo Switch and Outlet: The sets of wires from two of the cables are spliced to each other which typically indicates that one cable is the power coming in.
I replaced light switches and outlets in my home and now some things do not have power and do not work: How to Connect Electrical Wiring Problems When Replacing Outlets and Switches, Working with Existing Wiring of Outlets and Switches
I want to add an outlet to a bathroom, where do I connect the new outlet? How to add an Electrical Outlet to a Bathroom.