05000321/FIN-2012005-01
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Finding | |
|---|---|
| Title | Low Voltage Safety-related Cables Subjected to Water Submersion |
| Description | The NRC identified a non-cited violation (NCV) of 10 CFR Part 50, Appendix B, Criterion III, Design Control, on October 16, 2012, when the licensee failed to maintain safety-related cables in an environment for which they were designed. Specifically, safety-related cables are not designed for continuous submersion in water. The inspectors determined that a diesel fuel oil storage tank level transmitter cable and the emergency diesel generator 2A fuel oil pump 2A2 power cable were exposed to continuous submersion in water. The licensee removed the accumulated water from the pull box and initiated condition report (CR) 534897 to enter this condition into the corrective action program for resolution. Failure to maintain safety-related cables in an environment for which they were designed does not meet the 10 CFR Part 50, Appendix B, Criterion III, Design Control requirement. The licensee should have identified this violation when addressing Generic Letter 2007-01 and therefore, this failure is a performance deficiency. The finding was more than minor in accordance with IMC 0612, Appendix B, Issue Screening, dated September 7, 2012, because it is associated with the Equipment Performance attribute and adversely affected the Mitigating Systems Cornerstone objective to ensure the reliability of systems that respond to initiating events to prevent undesirable consequences. Specifically, subjecting a diesel fuel oil storage tank level transmitter cable and the 2A emergency diesel generator fuel oil transfer pump cable to continuous submersion could degrade the cable and result in failure. In accordance with IMC 0609, Attachment 4, Exhibit 2, Mitigating Systems Screening Questions , dated June 19, 2012, the finding was determined to be of very low safety significance (Green) because questions 1 through 4 of Section A, Mitigating SSCs and Functionality, were answered no. The inspectors determined that the finding does not have a cross-cutting aspect because the cause of the finding was directly related to the licensees Generic Letter 2007-01 review. This review occurred more than 3 years ago; therefore, the performance deficiency is not indicative of present licensee performance. |
| Site: | Hatch  |
|---|---|
| Report | IR 05000321/2012005 Section 1R06 |
| Date counted | Dec 31, 2012 (2012Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.06 |
| Inspectors (proximate) | D Berkshire F Ehrhardt W Loo J Laughlin M Miller M Speck B Caballero S Sandal E Morris D Hardage M Schwieg |
| INPO aspect | |
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Finding - Hatch - IR 05000321/2012005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Hatch) @ 2012Q4
Self-Identified List (Hatch)
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