ENS 49713
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ENS Event | |
|---|---|
00:48 Jan 11, 2014 | |
| Title | Unusual Event Declared Due to Explosion within Protected Area Boundary |
| Event Description | The licensee declared a Notice of an Unusual Event per EAL HU2.2 "Explosion with Protected Area Boundary" following an apparent fault and explosion on the M29 transformer (a non-safety related transformer). This resulted in a loss of one electrical bus at the ocean discharge station; however, no safety-related electrical loads were effected and both units remained at 100 percent electrical power. Station personnel reported that there was no smoke in the area of the M29 transformer and the event may have been a flashover explosion in the area of the transformer. All safety systems remain available. Licensee is investigating the cause of the explosion, and no offsite assistance was required.
The licensee has notified the NRC Resident Inspector, the State of North Carolina, and other local authorities. Notified DHS SWO, FEMA Operations Center, NICC Watch Officer, and NuclearSSA via e-mail.
Notification of an Unusual Event is being terminated [at 2320 EST] because the condition no longer exists. The source of the apparent explosion was a failed insulator on a breaker and is known to present no danger to public health and safety. Both Units are stable and a recovery organization is in place. The licensee has notified the NRC Resident Inspector regarding the termination of the event. Notified R2DO (Hopper), NRR EO (Lubinski), IRD Manager (Gott), DHS SWO, FEMA Operations Center, NICC Watch Officer, and Nuclear SSA via e-mail. |
| Where | |
|---|---|
Brunswick  North Carolina (NRC Region 2) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-4.62 h-0.193 days <br />-0.0275 weeks <br />-0.00633 months <br />) | |
| Opened: | Justin Eastman 20:11 Jan 10, 2014 |
| NRC Officer: | Nestor Makris |
| Last Updated: | Jan 10, 2014 |
| 49713 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 567972023-10-16T02:56:00016 October 2023 02:56:00
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