report

Belgian stress tests action plan ‐ 2012‐12‐14No. Plant / Type Topic Sub‐family Sub‐sub family Action / ActivityRelatedrecommendation onEuropean level("Topics 1 to 3")Relatedrecommendation onnational level("Additional topics")StatusTarget Date524 KCD34 / PWRSevere AccidentsmanagementRadiological releaseLeak path identificationComplete BK‐procedures with a decision‐supporting tool (table, flowchart) to pinpoint rapidly the (most likely) place of a containment leak.43 46 In progressOn hold tillresults ofdiscussion withSafety Authority527 KCD12 / PWRSevere AccidentsmanagementRadiological releasepH reactor controlStudy of the necessity and feasibility (advantages/disadvantages) ofthe installation of tetraborate racks45 In progress 31/12/2013528 KCD12 / PWROperationmanagementVariaMaintaining installed but non‐requiredequipments available as back‐upImprovement of the technical specifications to reduce alloweddowntimes of the 2nd level systems54 In progress 30/06/2013529 KCD34 / PWROperationmanagementVariaMaintaining installed but non‐requiredequipments available as back‐upImprovement of the technical specifications to reduce alloweddowntimes of the 2nd level systems54 In progress 30/06/2013536 CNT1 / PWR External hazards EarthquakeReinforcement of the electrical auxiliarybuildingFeasibility study for the reinforcement of the BAE electrical building 11 In progress 31/12/2012538 CNT / PWR External hazards EarthquakeSensibilization campagn to seismicalertnessDescriptive note: continue efforts to keep awareness of potentialseismic interactions inside the premises. Ensure the strict applicationof procedures to avoid any interaction between scaffolding and seismicstructures, systems and components13 In progress 30/09/2012539 CNT / PWR External hazards Flooding Protection against site flooding540 CNT / PWR External hazards Flooding Procedures in case of flooding541 CNT / PWR External hazards Flooding542 CNT / PWR External hazards FloodingAvailability of the additionnal meansagainst extreme floodingAdditional means against extremeflooding (pumps, diesel generators,…)543 CNT / PWR External hazards Flooding Procedures in case of floodingProvide a safety margin for the first level systems to take account ofthe uncertainties related to the decamillenial flood levelAdditional improvements of the emergency intervention strategy andthe crisis management should be implemented, includingcorresponding proceduresRobustness of the CMU ultimate means circuit: determine the specificprovisions applicable to safety related equipment (testing,maintenance, inspections…)Robustness of the CMU ultimate means circuit: the alternative electricsources currently used to power the instrumentation and controlsystems and the emergency lighting should be improved wherenecessaryThe robustness of the early warning system based on directcommunication between the regional service competent forforecasting flow rates in the Meuse Basin ("SETHY", using a dedicatedforecast system) and Tihange power station should be improved14 In progress 31/12/20129 15 In progress 01/10/201229 16, 30, 55 In progress 31/12/201226 17 In progress 31/12/20129, 40 19, 20, 21, 22, 23, 24, 25 In progress 31/12/2012544 CNT / PWR External hazards FloodingAdditional means against extremeflooding (pumps, diesel generators,…)Means of transport on site of personnel and equipment to the units,within the units or from one unit to another while the site is floodedmust be organized and taken into account in the emergency planIn progress 31/12/2012545 CNT / PWR External hazards FloodingAdditional means against extremeflooding (pumps, diesel generators,…)The internal risks potentially induced by flooding (fire, explosion)should be examined and additional measures should be taken wherenecessary7 In progress 31/12/2013Implementation of activities16/20