Update: Limerick shutdown resulted in Technical Support System ventilation problems

Yesterday, operators at the Limerick nuclear power plant scrammed the Unit 1 reactor after an electrical problem knocked out the main generator recirculating water pumps. Today, plant owner Exelon filed an Event Report with the Nuclear Regulatory Commission that revealed an additional problem resulting from the incident.

The plant’s Technical Support Center (TSC) temporarily lost normal air conditioning due to loss of power, and the TSC could not confirm the airflow available from the Emergency Ventilation system. According to the Event Report: “This is considered a Loss of Emergency Assessment Capability.” The report also outlined alternative procedures with the lack of Emergency Ventilation: “If conditions required use of the Emergency Ventilation system, the Station Emergency Director would assess habitability in accordance with Station procedures. TSC relocation of personnel would be directed as required until such time that the TSC ventilation system is returned to service.”



About Robert Singleton

By day, I work for a call center. In my spare time, I try to save my hometown (and planet) from a nearly constant onslaught of greedheads, lunatics and land developers. I live in a fictional town called Austin, Texas, where I go to way too many meetings.
This entry was posted in Event Reports, Exelon, Limerick, Nuclear Regulatory Commission, Plant shutdowns, Reactor problems and tagged , , , , , , . Bookmark the permalink.

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