Single Phase Vs. Three Phase Wiring | Hunker Nov 29, 2018There are two primary types of wiring: single phase and three phase. Single phase power tends to be for residential use, while three phase power tends to be for commercial and industrial use. Although there are differences between the two, the principles behind both are broadly similar.Author: Annie Walton Doyle Raleigh Electrical Motor | Control Wiring Repair Electrical Motor & Control Wiring. Looking for an experienced electrical contractor to perform commercial motor and control wiring repairs and installation? The Raleigh-Durham commercial electricians at Progressive Service Company are skilled in all aspects of motor and control wiring. We provide prompt, knowledgeable installation and repairs.