The term "electrical equipment", as used in this chapter, means conductors, fittings, devices, fixtures and other equipment installed for the utilization of electricity for light, heat or power. It does not include radio apparatus or equipment for wireless reception of sounds and signals, and it does not include apparatus, conductors or other equipment installed for or by public utilities, including common carriers which are under the jurisdiction of the Illinois commerce commission, for use in their operation as public utilities. (1983 Code)