Create home wiring plan with built-in elements before wiring your home, a wiring diagram is necessary to plan out the locations of your outlets, switches, lights, and how you will connect them as an all-inclusive floor plan software, edraw contains an extensive range of electrical and lighting symbols, which makes drawing a wiring plan a piece of cake. Electrical wiring blueprint. Circuit drawings and wiring diagrams electrician 2 youth explore trades skills circuit drawing (diagram): a simplified conventional graphical representation of an electrical circuit duplex receptacle single-pole switch symbol legend 1