ENS 53396
ENS Event | |
---|---|
20:17 May 10, 2018 | |
Title | Notification of Unusual Event |
Event Description | Unit 3 experienced a loss of AC power while in Mode 6. Power was regained automatically from Keowee via the underground path.
Decay heat removal has been restored. Spent fuel cooling has been restored. Emergency procedures [are] in progress. The Licensee notified the senior NRC resident inspector, State of South Carolina and local authorities. The total loss of 4160 volt AC power was for approximately 30 seconds. The unit is refueled and reactor reassembly complete up to bolting on the reactor head. There was no effect on Units 1 and 2. Notified DHS SWO, FEMA Ops Center, FEMA NWC, DHS NICC, and NuclearSSA
At 0530 EDT, Oconee terminated the notification of unusual event on Unit 3. The basis for termination was that offsite power was restored and the plant is now in its normal shutdown electrical lineup. The licensee has notified Oconee and Pickens counties and will be notifying the NRC Resident Inspector. Notified R2DO (Ehrhardt), NRR EO (Miller), IRD MOC (Gott), DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email) and NuclearSSA (email). |
Where | |
---|---|
Oconee South Carolina (NRC Region 2) | |
Reporting | |
Emergency class: | Unusual Event |
10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
Time - Person (Reporting Time:+-3.23 h-0.135 days <br />-0.0192 weeks <br />-0.00442 months <br />) | |
Opened: | Ben Mccall 17:03 May 10, 2018 |
NRC Officer: | Thomas Kendzia |
Last Updated: | May 11, 2018 |
53396 - NRC Website
Loading map... {"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"350px","height":"250px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":6,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca class=\"mw-selflink selflink\"\u003EENS 53396\u003C/a\u003E - \u003Ca href=\"/Oconee\" title=\"Oconee\"\u003EOconee\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca href=\"/Notification_of_Unusual_Event\" class=\"mw-redirect\" title=\"Notification of Unusual Event\"\u003ENotification of Unusual Event\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 53396 - Oconee\n","link":"","lat":34.79336388888889,"lon":-82.89360555555555,"icon":"/w/images/7/75/Duke_Energy_icon.png"}],"imageoverlays":null} | |
WEEKMONTHYEARENS 557332022-02-05T08:57:0005 February 2022 08:57:00
[Table view]10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Visual Observation of Smoke and Multiple Fire Alarms in the West Penetration Room ENS 533962018-05-10T20:17:00010 May 2018 20:17:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notification of Unusual Event ENS 517702016-03-06T20:20:0006 March 2016 20:20:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Emergency Declaration Due to Fire/Explosion in the Main Transformer ENS 510262015-04-30T22:40:00030 April 2015 22:40:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Electrical Fault ENS 461672010-08-11T16:07:00011 August 2010 16:07:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unit 3 Declared an Unusual Event Due to Loss of Annunciators ENS 411372004-10-20T02:10:00020 October 2004 02:10:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Unexplained Decrease in Spent Fuel Pool Water Level ENS 404242004-01-03T01:38:0003 January 2004 01:38:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unit 1 Declared an Unusual Event Due to 14 Gpm Unidentified Rcs Leakage 2022-02-05T08:57:00 | |