05000250/FIN-2008006-02
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Finding | |
|---|---|
| Title | Failure to Verify Limiting Value Adequacy for Safety-Related Battery Intercell Resistance |
| Description | The team identified a NCV of 10 CFR Part 50, Appendix B, Criterion III, Design Control, having very low safety significance involving the failure to verify and ensure that the 125 VDC safety-related batteries would remain operable if all the inter-cell and terminal connections were at the resistance value (< 150 microohms) allowed by technical specification (TS) surveillance requirement (SR) 4.8.2.1.b(2)/c(3) and maintenance procedure 0-SME-003.3/.4/.15. The finding was more than minor because if left uncorrected, the finding would become a more significant safety concern. Specifically, the 125 VDC safetyrelated batteries would become incapable of meeting their design basis function if the inter-cell and connection resistance were allowed to increase to the TS allowed value. The finding was of very low safety significance since it was a design deficiency determined not to have resulted in the loss of safety function. No cross cutting aspect was identified for this finding. The licensee entered this deficiency into their corrective action program. (Section 1R21.2.1 |
| Site: | Turkey Point  |
|---|---|
| Report | IR 05000250/2008006 Section 1R21 |
| Date counted | Dec 31, 2008 (2008Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | M Coursey R Williams J Eargle |
| INPO aspect | |
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Finding - Turkey Point - IR 05000250/2008006 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Turkey Point) @ 2008Q4
Self-Identified List (Turkey Point)
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