Finding | |
|---|---|
| Title | Adequate Calculation for DC Short Circuit Analysis |
| Description | The inspectors identified a finding having very low safety significance with an associated NCV of 10 CFR Part 50, Appendix B, Criterion III, Design Control, for the licensees failure to accurately account for the cable resistance for the reactor core isolation cooling and high pressure core injection (HPCI) dc motor operated valves in the dc short circuit calculation. The issue, along with other related electrical calculational errors, was entered into the licensees corrective action program. The finding was more than minor because it was associated with the Mitigating Systems cornerstone attribute of design control and affected the cornerstone objective of ensuring the availability, reliability, and capability of safety-related equipment to respond to initiating events to prevent undesirable consequences. This finding is of very low safety significance (Green) because the design deficiency was confirmed not to result in loss of operability or functionality. The inspectors concluded that the cause of the finding was related to the cross-cutting aspect of Human Performance, Resources, because the licensee did not provide complete, accurate, and up-to-date design documentation to assure nuclear safety. (IMC 0310, Section 06.01.b.(3) H.2(c)) |
| Site: | Fermi  |
|---|---|
| Report | IR 05000341/2010006 Section 1R21 |
| Date counted | Jun 30, 2010 (2010Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | B Jose C Baron C Brown C Moore G Skinner L Kozak M Jones P Lougheed Z Falevitsb Josec Baron C Brown C Moore G Skinner L Kozak M Jones P Laugheed Z Falevits |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
| ' | |
Finding - Fermi - IR 05000341/2010006 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Fermi) @ 2010Q2
Self-Identified List (Fermi)
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