Guide to Wiring GFI and GFCI Receptacles - Ask-The-Electrician This article explains the basics of the electrical code requirements for GFI Protection as part of the home electrical wiring system. GFCI Circuits and Outlets This article about GFCI outlets for home electrical use will provide a more in depth understanding about gfi protection and provides wiring examples. House Wiring Diagram For GFI Wiring a GFCI Outlet with No Ground Wire See how wiring electrical outlets for the home are done. How to Wire GFI Outlets. GFCI and GFI Wiring Diagrams. The features and benefits of GFCI outlets and receptacles will give you a clear understanding of the importance why these safety devices are required by code to help protect you and your family against accidental electrical shock hazards.