report

Belgian stress tests action plan ‐ 2012‐12‐14N° ENSREG Topic Source ENSREG Peer Review Recommendations and Suggestions Action description : Family ‐ subfamily ‐ sub‐subfamilyAction to beimplementedComment34Severe accidentmanagementENSREG compilation ofrecommendations, xCNSEnhancement of Severe Accident Management Guidelines (SAMG)In conjunction with the recommendation 4, the enhancement of SAMGs takinginto account additional scenarios, including, a significantly damagedinfrastructure, including the disruption of plant level, corporate‐level andnational‐level communication, long‐duration accidents (several days) andaccidents affecting multiple units and nearby industrial facilities at the sametime.Emergency management ‐ Multi‐unit event and associatedorganization ‐ Organization and logisitics of internal emergencyplan in case of multi‐unit eventSevere accident management ‐ H2 risk ‐ H2 concentration followupin reactor buildingSevere accident management ‐ Review SAMG procedures ‐ ReviewSevere Accidents Mitigation Guidelines procedures189, 190, 191, 192,193, 194, 213, 478,504, 505, 581, 631,63235363738Severe accidentmanagementSevere accidentmanagementSevere accidentmanagementSevere accidentmanagementxCNSENSREG compilation ofrecommendationsENSREG compilation ofrecommendationsENSREG compilation ofrecommendationsAnalysis of human resources, communication, personnel training and guidanceduring severe long term accidents (esp. multi‐unit) and validation of effectivenessthrough exercises.SAMG ValidationThe validation of the enhanced SAMGs.SAM ExercisesExercises aimed at checking the adequacy of SAM procedures and organisationalmeasures, including extended aspects such as the need for corporate and nationlevel coordinated arrangements and long‐duration events.SAM TrainingRegular and realistic SAM training exercises aimed at training staff. Trainingexercises should include the use of equipment and the consideration of multi‐unitaccidents and long‐duration events. The use of the existing NPP simulators isconsidered as being a useful tool but needs to be enhanced to cover all possibleaccident scenarios.Emergency management ‐ Communications means ‐ On & Off‐sitebackup communications meansEmergency management ‐ Requirements ‐ Harmonization of sitestraining programsSevere accident management ‐ Review SAMG procedures ‐Coherence severe accidents procedures between Doel andTihangeSevere accident management ‐ Review SAMG procedures ‐ ReviewSevere Accidents Mitigation Guidelines proceduresSevere accident management ‐ Review SAMG procedures ‐Coherence severe accidents procedures between Doel andTihangeSevere accident management ‐ Review SAMG procedures ‐ ReviewSevere Accidents Mitigation Guidelines proceduresSevere accident management ‐ Review SAMG procedures ‐Coherence severe accidents procedures between Doel andTihangeSevere accident management ‐ Review SAMG procedures ‐ ReviewSevere Accidents Mitigation Guidelines procedures476, 507, 516189, 190, 191, 519,520, 521, 522, 631,632189, 190, 191, 519,520, 521, 522, 631,632189, 190, 191, 519,520, 521, 522, 631,632Additional actions are part of theman made events part of theaction planSAMG are validated as part of thePSR process39Severe accidentmanagementENSREG compilation ofrecommendationsExtension of SAMGs to All Plant StatesThe extension of existing SAMGs to all plant states (full and low‐power,shutdown), including accidents initiated in SFPs.Severe accident management ‐ Review SAMG procedures ‐ ReviewSevere Accidents Mitigation Guidelines procedures189, 190, 191, 631,63240Severe accidentmanagementENSREG compilation ofrecommendationsImproved CommunicationsThe improvement of communication systems, both internal and external,including transfer of severe accident related plant parameters and radiologicaldata to all emergency and technical support centre and regulatory premises.Emergency management ‐ Communications means ‐ On & Off‐sitebackup communications meansExternal hazards ‐ Flooding ‐ Additional means against extremeflooding (pumps, diesel generators,…)External hazards ‐ Flooding ‐ Procedures in case of flooding43, 50, 57, 476, 507,543Topics 1 to 36/7