ENS 47686
From kanterella
Jump to navigation
Jump to search
ENS Event | |
|---|---|
19:07 Feb 22, 2012 | |
| Title | Unanalyzed Condition Related to Certain Postulated Fire Conditions |
| Event Description | At 1307 CST on February 22, 2012, it was identified that under certain fire conditions, the ability to meet the performance criteria of the approved fire protection program may be challenged. Specifically the cabling for Train A Pressurizer Power Operated Relief valve and Train B Pressurizer Power Operated Relief valve alternate circuits may be affected under certain fire conditions affecting the relay room. The ability to maintain pressurizer level within the indicated range may be challenged due to a spurious opening of a pressurizer power operated relief valve during these postulated conditions.
Compensatory actions to address the fire in the area of concern are in place. This condition is reported pursuant to 10CFR50.72(b)(3)(ii)(B). A similar condition was previously reported [by the licensee] in EN#44482. The compensatory measures that had been put in place for that earlier condition remain applicable to this current condition. The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
| Kewaunee Wisconsin (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition | |
| LER: | 05000305/LER-2012-001 Regarding Pressurizer PORV and Reactor Coolant System Vent Valves Appendix R Spurious Operation Concerns |
| Time - Person (Reporting Time:+-0.95 h-0.0396 days <br />-0.00565 weeks <br />-0.0013 months <br />) | |
| Opened: | Daniel Backus 18:10 Feb 22, 2012 |
| NRC Officer: | Vince Klco |
| Last Updated: | Feb 22, 2012 |
| 47686 - 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 47686\u003C/a\u003E - \u003Ca href=\"/Kewaunee\" title=\"Kewaunee\"\u003EKewaunee\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EUnanalyzed Condition Related to Certain Postulated Fire Conditions\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 47686 - Kewaunee\n","link":"","lat":44.342975,"lon":-87.53713055555555,"icon":"/w/images/b/b0/Dominion_icon.png"}],"imageoverlays":null} | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Retrieved from "https://kanterella.com/w/index.php?title=ENS_47686&oldid=424064"