ENS 51026
From kanterella
Jump to navigation
Jump to search
ENS Event | |
---|---|
22:40 Apr 30, 2015 | |
Title | Unusual Event Declared Due to Electrical Fault |
Event Description | Unusual Event (4.6.U.1) was declared by the Shift Manager at Oconee Nuclear Station at 1840 EDT on 4/30/15 due to scorched 4160V cable and a hole created in metal connector coming into the top of 1C condensate booster pump motor electrical junction box. Unit 1 experienced a decrease in power to approximately 98.6% power due to the perturbation in condensate flow from the loss of 1C condensate booster pump. Unit 1 is currently stable at 98.6%. 1A condensate booster pump auto-started as expected. Smoke was observed and quickly dissipated. No visible fire or flame was observed. No Fire Brigade response required.
The Unusual Event was terminated at 1945 EDT on 4/30/15. The licensee informed state/local agencies and the NRC Resident Inspector and does not plan to issue a press release. Notified other Federal Agencies (DHS SWO, FEMA Ops, FEMA NWC, NICC Watch Officer and NuclearSSA). |
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:+-3.03 h-0.126 days <br />-0.018 weeks <br />-0.00415 months <br />) | |
Opened: | Jerry Collier 19:38 Apr 30, 2015 |
NRC Officer: | Daniel Mills |
Last Updated: | Apr 30, 2015 |
51026 - 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 51026\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\u003EUnusual Event Declared Due to Electrical Fault\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 51026 - Oconee\n","link":"","lat":34.79336388888889,"lon":-82.89360555555555,"icon":"/w/images/7/75/Duke_Energy_icon.png"}],"imageoverlays":null} | |
Unit 1 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (99 %) |
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 | |
Retrieved from "https://kanterella.com/w/index.php?title=ENS_51026&oldid=421621"