I am installing a residential oven that is hardwired. the junction box will be behind the oven. If the electric panel has a lock on the panel door would this meet the lockout requirements for the lock to remain in place and be acceptable as the lockout?
Nope. You'll need to provide a permanent device on the circuit breaker.
110.25 Lockable Disconnecting Means. If a disconnecting
means is required to be lockable open elsewhere in this Code, it
shall be capable of being locked in the open position. The
provisions for locking shall remain in place with or without the
lock installed.
Exception: Locking provisions for a cord-and-plug connection shall not
be required to remain in place without the lock installed.
