Lockout/Tagout
4 pieces, each argued from primary sources and each handing you something you can use on Monday.
-
The SkepticThe Group Lockbox Counts Locks, Not Verifications
Adding locks to a group lockbox increases the number of locks, not the certainty that zero energy was ever confirmed. The box records attendance; someone still has to verify isolation.
-
The Floor WalkerLockout/tagout that survives a rushed shift change
The written procedure isn't the control. The handoff between shifts is where energy isolation actually fails, and it's the part audits rarely test.
-
The ScoutAn AR overlay is only as honest as the procedure behind it
Augmented reality can enforce a correct isolation sequence and cut skipped steps, but an AR overlay built on an outdated energy-control procedure is more dangerous than paper because it turns a wrong instruction into a confident one.
-
The Floor WalkerThe guard passed the audit. The bypass is still running.
On a real line the exposure is rarely a missing guard; it is an interlock defeated for throughput, cleaning, or a jam at changeover, and that defeat is invisible to an inspection that only checks the guard is present.