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Regional Basic Professional Training Course in Korea

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❙ 301 ❙<br />

4. DESIGN OF NUCLEAR REACTORS<br />

ACKNOWLEMENT ■ ■ ■ ■ ■ ■ ■ ■<br />

The text of this chapter is based on the text by IAEA and IPSN. We appreciate their<br />

efforts.<br />

GLOSSARY ■ ■ ■ ■ ■ ■ ■ ■<br />

❏ accident conditions.<br />

Deviations from normal operation more severe than anticipated operational occurrences,<br />

<strong>in</strong>clud<strong>in</strong>g design basis accidents and severe accidents.<br />

❏ accident management.<br />

The tak<strong>in</strong>g of a set of actions dur<strong>in</strong>g the evolution of a beyond design basis accident:<br />

― to prevent the escalation of the event <strong>in</strong>to a severe accident;<br />

― to mitigate the consequences of a severe accident; and<br />

― to achieve a long term safe stable state.<br />

❏ active component.<br />

A component whose function<strong>in</strong>g depends on an external <strong>in</strong>put such as actuation,<br />

mechanical movement or supply of power.<br />

❏ anticipated operational occurrence.<br />

An operational process deviat<strong>in</strong>g from normal operation which is expected to occur at<br />

least once dur<strong>in</strong>g the operat<strong>in</strong>g lifetime of a facility but which, <strong>in</strong> view of appropriate<br />

design provisions, does not cause any significant damage to items important to safety or<br />

lead to accident conditions.

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