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Etats-Unis : Three Mile Island : urgence déclarée suite à un incendie qui s’est déclaré dans le bâtiment des auxiliaires




10 mai 2015


L’incendie a attaqué une pompe de refroidissement et des équipements de sécurité ce qui a justifié le lancement de l’alerte.

L’incendie a été éteint 46 minutes après son départ avec la sollicitation de services de lutte contre le feu extérieurs à la centrale. L’alerte a été levée 110 minutes après son enclenchement. Le réacteur n’aurait même pas été arrêté...

 Type : PWR - Puissance : 2 568 MWth - Première divergence : 6 / 1974 -

Avaialble in english only


Event Number : 51455

Facility : THREE MILE ISLAND - State : PA

Unit : [1] - RX Type : [1] B&W-L-LP

Event Date : 10/05/2015 - Event Time : 21:15

Emergency Class : ALERT

10 CFR Section : 50.72(a) (1) (i) - EMERGENCY DECLARED

Initial PWR : 100 %

Current PWR : 100 %

Event Text

ALERT DECLARATION DUE TO FIRE IN THE AUXILIARY BUILDING

"At 2115 [EDT] on 10/05/15, an Alert was declared due to a fire in the Auxiliary building affecting DC-P-1A [Decay closed cooling pump 1A] and A-Train safety equipment. The fire is out."

The licensee reported the fire was extinguished at approximately 2201 EDT. The fire did not hamper operations personnel responding to the fire. Offsite fire assistance was requested.

The NRC Resident Inspector will be notified.

The licensee notified the York Haven Power Station, PEMA (Pennsylvania Emergency Management Agency), and the counties of Cumberland, Lebanon, Lancaster, York, and Dauphin.

Notified DHS, FEMA, USDA, HHS, DOE, DHS NICC, EPA EOC, FEMA NWC (via email), FDA EOC (via email) and Nuclear SSA (via email).

* * * UPDATE AT 0015 EDT ON 10/06/15 FROM JAMES CREIGHTON TO S. SANDIN * * *

The licensee is terminating the Alert at 0009 EDT on 10/06/15 based on the following :

"At 2115 [EDT] on 10/05/15, an Alert (HA3) was declared due to a fire in the Decay Closed Cooling Water Pump ’1A’ motor and breaker. The fire was extinguished at 2201 [EDT].

"Following inspection by electrical maintenance the ’P’ 480V bus was re-energized at 2305 [EDT] and restoration of previously running loads is in progress.

"Station (TMI) is in a 72-hour LCO for repairs to the Decay Closed Cooling Water Pump ’1A’ (DC-P-1A).

"TMI (Three Mile Island) is terminating the event based upon the above information."

The licensee notified the York Haven Power Station, PEMA (Pennsylvania Emergency Management Agency), and the counties of Cumberland, Lebanon, Lancaster, York, and Dauphin. The licensee will issue a press release.

The licensee informed the NRC Resident Inspector. Notified R1DO (Bickett), NRR (Howe) and IRD (Gott).

Notified DHS, FEMA, USDA, HHS, DOE, DHS NICC, EPA EOC, FEMA NWC (via email), FDA EOC (via email) and Nuclear SSA (via email).