Post-Loss-of-Coolant Accident Doses to Pressurized Water Reactor Equipment

Safety-related equipment located inside the containment boundary of a pressurized water reactor must be qualified to withstand a radiation dose caused by a design-basis accident. Because of uncertainties in establishing the radiation dose, a margin of safety should be included. An analysis was performed of a core melt accident, a hypothetical accident, and a design-basis accident and a conclusion reached that a safety margin should be added to the loss-of-coolant accident dose.