13 janvier 2019
Étrangement, 6 semaines après la découverte du problème, le réacteur n’a toujours pas été arrêté et aucune mention de réparation n’est trouvée : ce circuit est pourtant fondamental pour la sécurité du réacteur...
Type : BWR Mark 3 - Puissance : 3 473 MWth - Première divergence : 01/02/1987 -
Available in english only
Event Number : 53824
Facility : CLINTON - State : IL
Unit : [1] [- RX Type : [1] GE-6
Event Date : 01/13/2019 - Event Time : 00:00 [CST]
Emergency Class : NON EMERGENCY 10 CFR Section : 50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Initial PWR : 99 % Curent PWR : 99 %
Event Text
HIGH PRESSURE CORE SPRAY SELF TEST FAILURE
"On January 13, 2019, the Self Test System reported a fault associated with the logic system for the High Pressure Core Spray (HPCS) high reactor water level closure function that could prevent the system from performing its safety function. The HPCS system was subsequently declared inoperable with actions taken per LCO [Limiting Condition for Operation] 3.6.1.3 to close and deactivate the 1E12-F004 valve, a primary containment isolation valve.
"Since HPCS is an emergency core cooling system and is a single train safety system, this condition is reportable under 10 CFR 50.72(b)(3)(v)(D) ’Any event or condition that could have prevented the fulfillment of the safety function of structures or systems that are needed to mitigate the consequences of an accident.’
"The NRC Resident Inspector has been notified."
HPCS is in a 14-day technical specification LCO action statement.
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2019/20190114en.html
La boutique
Informez vous