Locked mode

There are two forms of locking a single isolation point: single-person locking and multi-person locking. lock a single isolation point for single operation: operators and operators lock and tag the isolation point with their personal locks;  multiple operators work together to lock a single isolation point in two ways: all operators and operators lock individual locks on the isolation point; Or use the collective lock to lock the isolation point, the collective lock key house and in the lock box, all the operation personnel and operator personal lock lock in the lock box.