Power system electricians work on electric power distribution system equipment/apparatus.
A. Telecommunications line and cable workers work on lines/cables.
B. Telecommunications installation and repair workers work on telephones as well as telephone switching, computer, data, voice, and other telecommunications equipment.
C. Cable television service and maintenance technicians work on cable television signal and associated equipment in buildings.
D. Electrical power line and cable workers construct, maintain, and repair overhead/underground electrical power transmission and distribution systems.