12 décembre 2017
Cette perte fait suite à la tombée partielle du système informatique intégré des deux réacteurs. Le centre de support technique a perdu la capacité d’évaluation d’urgence des deux unités pendant plus de 75 minutes. Cette capacité d’évaluation serait restée disponible dans le centre d’opérations d’urgence.
▸ Type : PWR - Puissance : 3 853 MWth - Première divergence : n°1 : 3 / 1988 - n°2 : 3 / 1989 -
Available in english only
Event Number : 53118
Facility : SOUTH TEXAS - 4 State : TX
Unit : [1] [2] [ ] RX Type : [1] W-4-LP,[2] W-4-LP
Event Date : 12/12/2017 - Event Time : 17:57 [CST]
Emergency Class : NON EMERGENCY 10 CFR Section : 50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Réacteur n° 1 n° 2 Initial PWR : 100 % 100 % Current PWR : 100 % 100 %
Event Text
UNPLANNED LOSS OF EMERGENCY RESPONSE EQUIPMENT
"At 1757 CST on December 12, 2017, South Texas Project Electric Generating Station (STPEGS) Unit 1 and Unit 2 experienced an unplanned partial loss of the Integrated Computer System (ICS). The partial loss of Unit 1 and Unit 2 ICS resulted in a major loss of emergency assessment capability to STPEGS Unit 1 and Unit 2 Technical Support Center (TSC) for greater than 75 minutes. Assessment capability has been verified to be available in the Emergency Operations Facility (EOF).
"This report is being made pursuant to 10 CFR 50.72(b)(3)(xiii), any event that results in a major loss of emergency assessment capability, off site response capability, or off site communications ability.
"The NRC Resident Inspector has been informed."
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2017/20171213en.html
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