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 Date216 CNT1 / PWR Power supply Total Station Black‐out Reliability of depressurization means217 CNT2 / PWR Power supply Total Station Black‐out Reliability of depressurization means218 CNT3 / PWR Power supply Total Station Black‐out Reliability of depressurization means219 CNT1 / PWR Water supply Total Station Black‐out Turbopomp power supply backup220 CNT2 / PWR Water supply Total Station Black‐out Turbopomp power supply backup221 CNT3 / PWR Water supply Total Station Black‐out Turbopomp power supply backup223 CNT1 / PWR Power supply Total Station Black‐out224 CNT2 / PWR Power supply Total Station Black‐outVerification of the feedwater pump incase of loss of ventilation (roomtemperature)Verification of the feedwater pump incase of loss of ventilation (roomtemperature)Detail design study of an alternative electric power supply for thecontrol of the SEBIM valves in order to increase their reliabilityDetail design study of an alternative electric power supply to furtherincrease the reliability of the pressurizer discharge valves (PORV andMORV)Detail design study of an alternative electric power supply to furtherincrease the reliability of the pressurizer discharge valves (PORV andMORV)In case of complete SBO, examine the risks of drying up or overfilling ofthe steam generatorsIn case of complete SBO, examine the risks of drying up or overfilling ofthe steam generatorsIn case of complete SBO, examine the risks of drying up or overfilling ofthe steam generatorsCheck the functioning of the TPA EAA feedwater turbo pump withoutcooling ventilation in the roomCheck the functioning of the TPA EAA feedwater turbo pump withoutcooling ventilation in the roomIn progress 31/12/2013In progress 31/12/2013In progress 31/12/201334 In progress 31/12/201334 In progress 31/12/201334 In progress 31/12/201321 35 In progress 31/12/201321 35 In progress 31/12/2013225 CNT3 / PWR Power supply Total Station Black‐outVerification of the feedwater pump incase of loss of ventilation (roomtemperature)Check the functioning of the TPA EAA feedwater turbo pump withoutcooling ventilation in the room21 35 In progress 31/12/2014226 CNT2 / PWR Water supply Loss of Main Heat Sink Backup heat sink227 CNT3 / PWR Water supply Loss of Main Heat Sink Backup heat sinkJustify according to US NRC RG 1,27 the availability of the deep waterintakes from the Meuse (accessibility, operability and connection)Justify according to US NRC RG 1,27 the availability of the deep waterintakes from the Meuse (accessibility, operability and connection)14 40 In progress 31/12/201214 40 In progress 31/12/2012392 CNT / PWRSevere AccidentsmanagementRadiological releaseLeak path identificationAddition of a decision support to determine the most likely leak pathsthrough containment penetrations (including deployment of mobiledetectors)43 46 On‐holdOn hold tillresults ofdiscussion withSafety Authority394 CNT / PWRSevere AccidentsmanagementRB protectionResearch &Development for severeaccidentsR&D follow‐up status about steam explosion 30, 47 50 In progress 31/12/2013396 CNT / PWRSevere AccidentsmanagementRadiological releasepH reactor controlStudy of the necessity and feasibility (advantages/disadvantages) ofthe installation of tetraborate racks45 In progress 31/12/2013397 CNT / PWR Power supply Batteries autonomy Increasing battery autonomy398 CNT / PWR Power supply Batteries autonomy Increasing battery autonomyA program for improving the autonomy of the batteries will bedeveloped and integrated in the ERG/SAMGA tool for decision‐support and calculation of load shedding of thebatteries, the lost SAMG functions and the alternatives forcompensating the lost functions will be implemented16 53 In progress 31/12/201316 53 In progress 31/12/2013Implementation of activities10/20