How-To-Wire-It.com, Ask-The-Electrician.com, TheCircuitDetective.com and Electrical-Online.com all have basic electrical wiring diagrams. Diagrams and schematics available include those for many basic home electrical projects, including lighting, ground fault circuit interrupters, standard receptacles, clothes dryers and home theater systems.
Lighting diagrams are covered for installation and repair of most basic types of single and multistage switches, including dimmers and ceiling fans. The sites also contain wiring instructions and schematics for adding GFCI outlets in areas with excess moisture, such as bathrooms, kitchens and exterior locations. Rewiring of outlets and replacement of electrical cords for appliances that are improperly matched with the available power supply are also covered.