ENS 52903
From kanterella
Jump to navigation
Jump to search
ENS Event | |
---|---|
02:57 Aug 15, 2017 | |
Title | Secondary Containment Momentary Low Vacuum |
Event Description | On August 14th, 2017 at 2257 [EDT], while shutting down the Annulus Exhaust Gas Treatment System (AEGTS) Train B, secondary containment pressure momentarily lowered. This resulted in the Technical Specification (TS) for Secondary Containment to not be met for 15 seconds. The minimum Secondary Containment vacuum observed during that time was 0.52 inch of vacuum water gauge.
Secondary Containment pressure was returned to within the TS operability limit of 0.66 inch of vacuum water gauge (TS SR 3.6.4.1.1) by the AEGTS Train A that remained in operation. There were no radiological releases associated with this event. Declaring Secondary Containment inoperable is reportable under [10 CFR] 50.72(b)(3)(v)(C) & (D) for an event or condition that could have prevented the fulfillment of a safety function of a system that is needed to:(C) Control the release of radioactive material; or (D) Mitigate the consequences of an accident. The licensee has notified the NRC Resident Inspector. |
Where | |
---|---|
Perry Ohio (NRC Region 3) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
LER: | 05000440/LER-2017-005 |
Time - Person (Reporting Time:+2.02 h0.0842 days <br />0.012 weeks <br />0.00277 months <br />) | |
Opened: | Stephen J. Kapostasy 04:58 Aug 15, 2017 |
NRC Officer: | Dong Park |
Last Updated: | Aug 15, 2017 |
52903 - 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 52903\u003C/a\u003E - \u003Ca href=\"/Perry\" title=\"Perry\"\u003EPerry\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ESecondary Containment Momentary Low Vacuum\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 52903 - Perry\n","link":"","lat":41.79572777777778,"lon":-81.145375,"icon":"/w/images/a/ad/FirstEnergy_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_52903&oldid=81797"