Electrician Jobsite English & Troubleshooting

De-energize, Test, Lockout/Tagout

Turn safety into repeatable actions: identify sources, isolate, lock, verify, and maintain control.

Page highlights

Understand how LOTO prevents unexpected energization or startup.
Learn live-dead-live verification logic.
Know learners can simulate the workflow, while field execution must follow employer and local rules.
De-energizing is not a guess; it isolates energy sources from equipment.
Verification proves the tester works, proves the target is de-energized, then proves the tester still works.
The core of lockout/tagout is preventing others from restoring energy.

This site provides learning materials and does not replace local rules, permits, site procedures, or qualified judgment.