Tag
#alarms
2 topics across all disciplines.
Integrity operating windows — limits that protect the metal, not the product
What an IOW is and how it differs from a process alarm or a safety trip, the three tiers in API 584, why an exceedance invalidates the inspection plan rather than causing immediate failure, and why windows nobody implemented are the usual outcome.
Alarm management — why an operator with 400 alarms has none
What an alarm is actually for, why a flood during an upset removes the help exactly when it is needed, what a standing alarm costs, and why adding an alarm is a design decision rather than a configuration change.