2 avril 2014
Suite à l’incendie, le réacteur n° 2 a été arrêté en urgence et les barres de contrôle se seraient correctement insérées dans le cœur. L’alerte, puis l’urgence ont été déclarées 32 minutes après le départ de feu.
Type : BWR Mark 1 type Fukushima 1 - Puissance : 2 957 MWth - Première divergence : 04/1972
Available in english only.
Les vannes d’isolation vapeur ont été fermées manuellement. Un groupe diesel de secours d’urgence est inutilisable suite à sa perte de son refroidissement MAIS le site reste alimenté par le réseau électrique extérieur.
L’alerte a été levée 7 h 52 après son enclenchement
Le cœur étant critique, les systèmes de protection du réacteur se seraient enclenchés.
Event Number : 49988 - Facility : QUAD CITIES - State : IL -
Unit : [2] - RX Type : GE-3
Event Time : 13:40 - Emergency Class : ALERT
10 CFR Section : 50.72(a) (1) (i) - EMERGENCY DECLARED
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Initial PWR : % Current PWR : 0 %
Event Text
ALERT DECLARED DUE TO FIRE IN UNIT 2 TURBINE BUILDING
"Quad Cities Unit 2 Alert Classification (HA3) Due to Fire.
"On April 2, 2014, at 1340 CDT, an ALERT was declared due to a fire in the Unit 2 turbine building. Prior to declaring the ALERT, Unit 2 was manually scrammed at 1302 CDT. All control rods inserted and all automatic isolations actuated as designed. The Main Steam Isolation Valves were manually closed. The fire has been extinguished. Unit 2 is currently in Hot Shutdown.
"The cause of the event is under investigation.
"Unit 1 remains at 100% power.
"The Senior Resident Inspector has been notified of the event."
Unit 2 is still being supplied from off-site power and is in a normal shutdown electrical lineup with the exception of Bus 29-1 (480 VAC safety bus) that was deenergized. One Unit 2 emergency diesel generator is inoperable due to the loss of power to its cooling water pump.
* * * UPDATE FROM MIKE HAYES TO DONG PARK AT 2252 EDT ON 04/02/2014 * * *
At 2132 CDT on April 2, 2014, the licensee terminated the Unit 2 Alert declaration. Unit 2 is stable in Mode 3 (Hot Shutdown). Unit 2 is proceeding to Mode 4 (Cold Shutdown) on shutdown cooling.
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2014/20140403en.html#en49988