Finding | |
|---|---|
| Title | Inadequate Calculations/Analyses and Testing for Tols on Safety-Related Movs |
| Description | A finding of very low safety significance (Green) and associated NCV of 10 CFR Part 50, Appendix B, Criterion III, Design Control, was identified by the inspectors for the failure to assure that thermal overload relays (TOLs) on safety-related motor-operated valve (MOV) circuits were sized properly and periodically tested. The licensee entered this issue into its corrective action program and was able to demonstrate operability in that the TOLs would not prevent any MOVs from performing their safety function. 2 Enclosure The finding was determined to be more than minor because the failure to assure that TOLs were properly sized and periodically tested could have affected the ability for MOVs to respond to initiating events. The issue was of very low safety significance because the inspectors determined it was a design deficiency that did not result in actual loss of safety function. The inspectors determined there was no cross-cutting aspect associated with this finding. (Section 1R21.3.b.(2)) |
| Site: | Duane Arnold  |
|---|---|
| Report | IR 05000331/2008006 Section 1R21 |
| Date counted | Mar 31, 2008 (2008Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | A Dunlop S Sheldon B Palagi H Campbell J Tapp C Acosta Acevedog Nicely A Stone |
| INPO aspect | |
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Finding - Duane Arnold - IR 05000331/2008006 | |||||||||||||||||||||||||||||||||||
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Finding List (Duane Arnold) @ 2008Q1
Self-Identified List (Duane Arnold)
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