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

RISKS ASSOCIATED WITH HAZARDS What hazards must the nuclear power plants be able to face up to? T he NPPs are designed to withstand various hazards which can originate both inside and outside the facility and lead directly or indirectly to damage to safety-important equipment and structures. The facilities must thus be able to withstand the following hazards: • hazards originating within the facility: fire, explosions, rupture of pressure equipment, falling loads, flooding caused by a pipe break; • hazards of natural origin: earthquakes, lightning, flooding, extreme weather or climatic conditions such as heat waves and tornadoes; • hazards induced by the neighbouring industrial activities and communication routes: explosions, emissions of hazardous substances, accidental aircraft crashes. 12 • Les cahiers de l’ASN • February 2021 ASN RESOLUTION AND REQUIREMENTS