Abstract: A prewired electrical distribution system of the type which may be fixed to and extend along a surface such as wall for distributing electrical energy is disclosed. The system employs relatively rigid conductor carrying members of various lengths interconnected by substantially identical relatively rigid couplers and may be easily and quickly assembled. Each of the relatively rigid conductor carrying members includes an elongated channel of relatively uniform cross-section throughout its extent with that channel being longitudinally divided into at least two separate raceways, one for receiving power carrying conductors and the other for receiving communication wiring. The channel is formed from two joinable, typically extruded plastic members, and one metal formed member adapted to be fastened, as by screws, to a wall or other surface.