05000237/FIN-2009004-01
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Finding | |
|---|---|
| Title | Significance of Potentially Submerged Safety and Non-safety Related Low Voltage Power and Control Power Cables |
| Description | The inspectors identified an unresolved item regarding the regulatory requirements associated with potentially submerged safety and nonsafety-related low voltage power and control power cables. The inspectors walked down the 2/3 cribhouse, the Unit 3 cable tunnel, and the cable tunnels that lead from Units 2 and 3 out to the 345 kv offsite power switchyard to determine if cables were submerged. The inspectors determined that low voltage (600 v) nonsafety-related control power cables that lead from the power block out to the 345 kv offsite power switchyard are routinely submerged. The inspectors also determined that the safety-related power cables for the U3 diesel generator cooling water pump were installed in a condition that was routinely submerged. Whether or not these cables were designed for submergence and whether or not low voltage cables were subject to premature failure due to submergence is considered an unresolved item pending further NRC review. |
| Site: | Dresden  |
|---|---|
| Report | IR 05000237/2009004 Section 1R06 |
| Date counted | Sep 30, 2009 (2009Q3) |
| Type: | URI: |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.06 |
| Inspectors (proximate) | S Edmonds D Melendez-Colon W Slawinski C Phillips M Ring J Benjamin D Lords E Coffman C Scottc Phillipsd Melendez-Colon E Coffman J Draper M Ring R Krsek R Russell W Slawinski |
| INPO aspect | |
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Finding - Dresden - IR 05000237/2009004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Dresden) @ 2009Q3
Self-Identified List (Dresden)
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