20.08.2015   Design of Reactor Containment Systems for Nuclear Power Plants

Control of pressure and temperature in design basis accidents

4.86. Various types of energy management system are used for different types of containment (Annex I). The design performance of the systems for energy management should be established so as to be able in the event of an accident to reach a stable state, with the containment depressurized, within a reasonable period of time (typically a few days) after its onset.

4.87. The containment design should not depend on venting as a means of maintaining structural integrity in any design basis accident condition.