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Etats-Unis : South Texas : Evènement inhabituel engendré par un incendie survenu en zone protégée




18 janvier 2014


L’urgence a été déclarée suite à un départ d’incendie dans le local informatique de gestion du réacteur. L’incendie a été déclaré sous contrôle, par les pompiers, 26 minutes après le déclenchement de l’alarme incendie.

Type : PWR - Puissance : 3 853 MWTh - Première divergence : 03/1988

Available in english only.


Event Number : 49740

Facility : SOUTH TEXAS - State : TX - Unit : [1] RX Type : [1] W-4-LP,[2] W-4-LP - Event Date : 01/18/2014 - Event Time : 04:01 -

Emergency Class : UNUSUAL EVENT 10 CFR Section : 50.72(a) (1) (i) - EMERGENCY DECLARED -

Initial PWR : 100 % Current PWR : 100 %

Event Text

UNUSUAL EVENT DUE TO FIRE IN THE PROTECTED AREA

"At 0346 CST [the Unit 1 control room] received a fire alarm in the plant computer room. Upon investigation [the licensee] discovered [the plant computer] room with heavy smoke present and the halon system actuated. [Plant operators] entered ’0P0P04-ZO-0008, Fire and Explosion’. Entered Unusual Event at 0401 CST. Fire brigade present at Unit 1 electrical auxiliary building. At 0412 CST the fire was declared to be under control with no visible signs of flame noticed by the fire brigade. Unusual Event based on HU2 (fire or explosion) in the (Protected Area or Switchyard) which affects normal plant operations."

At 0446 CST the fire was declared to be extinguished. No plant equipment or indications were affected.

The licensee has notified the NRC Resident Inspector, the State of Texas, and other local authorities.

Notified DHS SWO, FEMA Operations Center, NICC Watch Officer, and NuclearSSA via e-mail.

* * * UPDATE FROM TRIPP FRAHM TO DANIEL MILLS AT 0957 EST ON 1/18/14 * * *

"At 0957 EST, [on 1/18/14, the] Unusual Event [was] terminated. Fire damage assessment not complete. Working with site engineering, fire protection, and maintenance personnel to restore all fire detection and protection systems. Continuous fire watch being maintained. Priority is to restore fire detection and protection systems to affected area, followed by repairs to damaged equipment."

The licensee has notified the NRC Resident Inspector, the State of Texas, and other local authorities.

Notified R4DO (Keller), NRR (Uhle), R4RA (Dapas), NRR EO (Lee), and IRD MOC (Grant).

Notified DHS SWO, FEMA Operations Center, NICC Watch Officer, and NuclearSSA via e-mail.

http://www.nrc.gov/reading-rm/doc-collections/event-status/event/2014/20140121en.html