While the individual plant examination takes into account events that could challenge the design from things that could go awry internally (in the sense that equipment might fail because components do not work as expected), the individual plant examination for external events considers challenges such as earthquakes, internal fires, and high winds.
INDIVIDUAL PLANT EXAMINATION FOR EXTERNAL EVENTS
Meaning of INDIVIDUAL PLANT EXAMINATION FOR EXTERNAL EVENTS in English
NRC Nuclear Energy English Glossary. Английский глоссарий ядерной энергии NRC (Национальный научно исследовательский совет). 2012