ENS 42605: Difference between revisions
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| event date = 05/24/2006 21:02 EDT | | event date = 05/24/2006 21:02 EDT | ||
| last update date = 05/24/2006 | | last update date = 05/24/2006 | ||
| title = Unusual Event | | title = Unusual Event for a Fire Lasting Greater than Ten Minutes | ||
| event text = Licensee declared an Unusual Event due to a fire that was not extinguished within 10 minutes - EAL U4A. There were no flames, only smoke. Control Room received a Bus 2 ground alarm, reduced power, secured the B Main Feedwater Pump, inserted control rods below the Maximum Extended Load Limit Analysis (MELLA) line, and then secured the C Condensate Pump. The ground alarm cleared after securing the C Condensate Pump. | | event text = Licensee declared an Unusual Event due to a fire that was not extinguished within 10 minutes - EAL U4A. There were no flames, only smoke. Control Room received a Bus 2 ground alarm, reduced power, secured the B Main Feedwater Pump, inserted control rods below the Maximum Extended Load Limit Analysis (MELLA) line, and then secured the C Condensate Pump. The ground alarm cleared after securing the C Condensate Pump. | ||
CO2 discharged automatically into the switchgear room due to the smoke in the switchgear room. The switchgear room has been ventilated, site personnel have entered and no other damage to the switchgear has been identified other than the C Condensate pump breaker. | CO2 discharged automatically into the switchgear room due to the smoke in the switchgear room. The switchgear room has been ventilated, site personnel have entered and no other damage to the switchgear has been identified other than the C Condensate pump breaker. | ||
Latest revision as of 21:18, 1 March 2018
| Where | |
|---|---|
| Vermont Yankee File:NorthStar Vermont Yankee icon.png Vermont (NRC Region 1) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-3.17 h-0.132 days <br />-0.0189 weeks <br />-0.00434 months <br />) | |
| Opened: | Kelly Robinson 21:52 May 24, 2006 |
| NRC Officer: | Jeff Rotton |
| Last Updated: | May 24, 2006 |
| 42605 - NRC Website
| |
