Les cahiers de l’ASN #02 - Conditions for the continued operation of EDF’s 900MWe reactors

Mitigate the consequence of a core meltdown accident A new heat exchanger will remove the heat from the containment and cool down the corium. Check the primary system The primary system of each reactor undergoes a hydrostatic pressure test. This resistance test consists in subjecting the primary system to a pressure that is 30% higher than its operating pressure. Preparing the response to an accident situation Additional connection points shall be provided to facilitate the intervention of the FARN team in the event of an accident, as shown here for pool cooling.