Why are the guidelines used for PM for Power Systems different from those in the Work Management Manual?
The guidelines for good performance in the Work Management Manual are based on instantaneous measurements whereas those used for PM for Power Systems are monthly averages. It follows therefore that if a resource averages; say 50% over a period, then there will be times when the utilization will be both significantly higher and lower in order to achieve that average. During the times when the utilization is higher, the customer may experience lesser performance degradation than if the utilization was consistently 50%.
