Electrician U

Electrician U is run by Dustin Stelzer, a licensed master electrician in the United States. He started the channel in 2016 to make training videos for electricians, and it has grown into an online school offering courses for the trade.

The videos mix practical skills with theory. Some cover hands-on jobs such as wiring a consumer panel, bending conduit or installing electric vehicle chargers. Others explain ideas that trip people up, such as the difference between kW and kVA, true RMS readings or why earthing matters. Many are aimed at apprentices and those just starting out. Cable types and wiring regulations follow American rules, which differ from the UK’s BS 7671, but the physics is the same everywhere.

Some highlights include:

A run through five formulas every electrician should know, from Ohm’s law to power calculations, with worked examples.

An explanation of why kilowatts and kilovolt-amperes are not the same thing, and why the difference matters on real installations.

A look at why buildings use ground rods, and what earthing actually does to keep people safe.

The channel has over 950,000 subscribers.

Becoming an electrician through an apprenticeship is one of the most direct routes into engineering work, and many electrical engineers start on the tools. This channel shows the maths and science that sit behind the job. It is a good way to test whether electrical installation, building services or electrical engineering appeals.