Electricians follow the national electric code as well as State and local building codes when installing systems. Electricians may also install fiber optic or coaxial cables. These are used for computers and telephones. They connect motors to electrical power. Also, they may install electronic controls for industrial equipment.
All electricians use tools such as screwdrivers, pliers, knives, and hacksaws.
They also use power tools and testing equipment, such as test lamps. Maintenance electricians try to find electrical problems before they occur. They inspect equipment and correct problems when they find them. They also check equipment for safety and advise managers when equipment is unsafe. Sometimes maintenance electricians install new electrical equipment.