05000440/FIN-2008006-01
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Finding | |
|---|---|
| Title | Switchyard Voltage Found Outside Analyzed Maximum Limit |
| Description | A finding of very low safety significance and associated NCV of 10 CFR Part 50, Appendix B, Criterion III, Design Control, was identified by the inspectors for the failure to ensure that the design limits in electrical calculations bound expected operational values. Specifically, the licensee failed to perform an adequate design review for expected conditions of the offsite power supply in determining design inputs for evaluating the effects of offsite voltage on plant equipment and to ensure that proper design control was maintained. During the inspection, the licensee evaluated the conditions and determined that the higher than analyzed offsite power system voltage did not have an impact on the operability of plant equipment. The finding was greater than minor because the licensee failed to assure and verify the effects of the maximum offsite power system voltage on plant equipment which could have affected the capability of safety-related equipment to respond to initiating events. The finding was determined to be of very low significance, because it was a design deficiency that did not result in actual loss of safety function. The cause of the finding is related to the cross-cutting area of Problem Identification and Resolution, specifically with respect to Corrective Action Program, because the licensee failed to evaluate and determine the extent of condition of the voltage in the offsite power supply. P.1(c) (Section 1R21.3.b(1) |
| Site: | Perry  |
|---|---|
| Report | IR 05000440/2008006 Section 1R21 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | J Jacobson S Sheldon W Sherbin C Brown S Kobylarz V Meghani M Jones A Stone B Jose |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Perry - IR 05000440/2008006 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Perry) @ 2008Q2
Self-Identified List (Perry)
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