Electrician U

Electrician U’s three videos here are electrical lessons. One shows replacing a 3-way switch and which wire goes on which screw. Another covers replacing a receptacle safely, with testers, wiring and mounting. The third explains where GFCI protection is required in homes under NEC 210.8, which applies in the US; Canada follows the CEC, so check your local rules.

Each lesson starts with power off and testing. Use a non-contact voltage tester and a multimeter, and never trust a switch or breaker label alone. Our GFCI guide shows how to test a GFCI. Electrical work usually needs a permit and inspection, and some places require a licensed electrician for any wiring change. Start with do you need a permit? and replace an outlet.