Electricians prepare, assemble, install, test, and troubleshoot electrical wiring, fixtures, and control devices. They also ensure that the work meets national and local safety standards and codes. They can be self-employed or employed by contractors or building maintenance departments. They …

Electricians perform a variety of tasks. They install electrical wiring and fixtures, troubleshoot malfunctions, and repair appliances. They use math in their work (as well as their hands). They need to know the basics of electricity, including power and watts. …