A crew of four electricians is servicing the same de-energized 480V feeder. How should lockout be handled?

Giải thích

In group lockout, every exposed worker applies their own lock (often on a lockbox or hasp) so power stays off until the last person removes their lock. A single foreman lock or shared lock leaves others exposed if someone else re-energizes. Relying on the first-in/last-out person defeats individual protection.