Specifically, to determine the Inspection Priority, the Probably of Failure and Combined Consequence are plotted on a matrix:
When you calculate an RBI Analysis, in each RBI Degradation Mechanism linked to the RBI Analysis, the values in the following fields are calculated automatically:
Together, the values are used to determine the Inspection Priority, which is stored in the Inspection Priority (Unmitigated Risk) field in the same RBI Degradation Mechanism.
The Inspection Priority is used to determine the driving RBI Component when a single pressure relief device protects more than one RBI Component. The RBI Component that belongs to the RBI Analysis whose Inspection Priority has the most conservative value (the lowest number) becomes the driving RBI Component. Recommendation are generated based on the Inspection Priority.
Specifically, to determine the Inspection Priority, the Probably of Failure and Combined Consequence are plotted on a matrix:
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