Electricians Electricians Electricians install, connect, test, and maintain electrical systems. Most electricians specialize in construction or maintenance, but a growing number are doing both.
Construction electricians read blueprints before they install electrical systems.
The blueprints tell them where to put circuits, outlets, and other equipment. Then they fasten to the wall metal or plastic boxes for switches and outlets. Next, electricians pull insulated wires or cables through the conduit to the boxes and complete the circuit. In houses, electricians use plastic-covered wires instead of conduits and wires. Once the wires are installed, electricians connect them to circuit breakers, transformers, and other components.