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Proof Test and PFD
avg
Distribution
PFD
avg
Distribution
•
Typically the PFD
avg
is generally not evenly distributed across each subsystem.
•
It is common for subsystems comprising of mechanical devices to be the driver for
the complete SIF PFD
avg
.
•
Consideration to PFD
avg
distribution should be made when allocating the effort and
potential process disruptions to a specific test.