ENS 46702
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ENS Event | |
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15:43 Mar 28, 2011 | |
Title | Unusual Event Declared Due to Smoke Coming from an Elevator Control Cabinet |
Event Description | At 1129 EDT on 03/28/11, smoke was detected coming from an elevator power supply transformer in the "B" Residual Heat Removal (RHR) vault. The licensee declared a Unusual Event at 1143 EDT. At 1146 EDT the fire brigade responded and found smoke only and no flame. The smoke stopped when the cabinet was de-energized. At 1158 EDT, the fire was proven to be out when the cabinet was opened. No fire fighting extinguishing agents were used. There was no damage to other plant equipment and no personnel injuries. At 1151 EDT, the licensee notified the States of New Hampshire and Massachusetts and at 1209 EDT, activated their Technical Support Center (TSC). The plant was operating at 100% power and remained stable during and after the event.
The licensee notified the NRC Resident Inspector.
At 1243 EDT on 03/28/11, the Unusual Event was terminated. Subsequent investigation has revealed that no plant equipment damage beyond a power transformer that supplies an equipment elevator occurred. There was no indication of [visible] flame (smoke only) and no personnel injuries as a result of the event. The licensee notified the NRC Resident Inspector. Notified R1DO (Powell), NRR EO (Cheok), IRD (Morris). |
Where | |
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Seabrook New Hampshire (NRC Region 1) | |
Reporting | |
Emergency class: | Unusual Event |
10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
Time - Person (Reporting Time:+-3.08 h-0.128 days <br />-0.0183 weeks <br />-0.00422 months <br />) | |
Opened: | Jeff Mcnally 12:38 Mar 28, 2011 |
NRC Officer: | John Shoemaker |
Last Updated: | Mar 28, 2011 |
46702 - NRC Website
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Unit 1 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
WEEKMONTHYEARENS 484132012-10-16T23:20:00016 October 2012 23:20:00
[Table view]10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Earthquake Felt On-Site ENS 480212012-06-13T17:43:00013 June 2012 17:43:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event After an Ammonium Hydroxide Spill in the Admin Building ENS 467022011-03-28T15:43:00028 March 2011 15:43:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Smoke Coming from an Elevator Control Cabinet ENS 403082003-11-10T14:08:00010 November 2003 14:08:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declaration Due to Release of Flammable Gas That May Impact Normal Station Operations 2012-06-13T17:43:00 | |
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