05000482/FIN-2008004-03
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Finding | |
|---|---|
| Title | Failure to adequately evaluate submerged safety-related cables |
| Description | The inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion III, Design Control, because Wolf Creek failed to adequately demonstrate that submerged 4160 volt cables are qualified for such service, and that they will remain operable, although the cables are presently operable. Since NRC Information Notice 2002-12 was issued, Wolf Creek had several opportunities to implement a preventive maintenance program and/or thoroughly evaluate the submerged cables. These cables include those of residual heat removal, containment spray, and essential service water. Wolf Creek has subsequently written Condition Report 2008-5073 and work orders to inspect cables and dewater cable vaults. Failure to perform an adequate engineering evaluation that demonstrated continued operability was considered a performance deficiency. The inspectors determined that this finding was more than minor using Inspection Manual Chapter 0612, Appendix E, Example 3.j, because the NRC was able to show that Wolf Creeks operability evaluation needed significant change to demonstrate continued operability. Using Manual Chapter 0609.04, Phase 1 - Initial Screening and Characterization of Findings, this finding was determined be of very low safety significance. Specifically, the deficiency did not result in the present loss of operability or functionality and did not represent a risk significant external event such as flooding. The inspectors determined that the finding has a problem identification and resolution crosscutting aspect in the area associated with the corrective action program. Despite several opportunities since 2002, Wolf Creek failed to perform a thorough evaluation for continued operability of submerged safety-related cables to ensure continued nuclear safety P.1(c) Section 1R15). |
| Site: | Wolf Creek  |
|---|---|
| Report | IR 05000482/2008004 Section 1R15 |
| Date counted | Sep 30, 2008 (2008Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | R Deese D Dumbacher S Cochrum C Long P Alter J Groom W Schaup R Hickok |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Wolf Creek - IR 05000482/2008004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Wolf Creek) @ 2008Q3
Self-Identified List (Wolf Creek)
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