Electricians typically do the following:
Read blueprints or technical diagrams before doing work
Install and maintain wiring and lighting systems
Inspect electrical components, such as transformers and circuit breakers
Identify electrical problems with a variety of testing devices
Repair or replace wiring, equipment, or fixtures using hand tools and power tools
Follow state and local building regulations based on the National Electric Code
Direct and train workers to install, maintain, or repair electrical wiring or equipment