Regional Basic Professional Training Course in Korea

Regional Basic Professional Training Course (BPTC) on Nuclear Safety
progression of the accident, and to mitigate its associated on‐site and off‐site
consequences by implementing accident management procedures and actions to regain
safe control of the plant. The methods and the means to deal with this objective will be
explained in detail in the following sections. The difference between the accident
management of design basis accident and the severe accident will be explained.
In case of severe accident, the management strategy and guidelines will also be described.
SAM is focused on events where core damage has occurred and priority is with
mitigation actions. It is clearly beyond the area of emergency operating procedures at
most plants, which are event based and sysmptom based, and which focus mainly on
methods to prevent incidents from becoming core damage accidents.
16.2. EMERGENCY OPERATING PROCEDURES
An event sufficiently severe that a reactor trip is either actuated automatically or required
to be manually initiated to mitigate the event is defined as emergency event. All nuclear
power plants have emergency operating procedures to cope with emergency events. They
guide the operator through an event to reach a stable and safe final state, with the goal to
minimize damage to the facility and minimize radioactive releases to the environment.
There are different approaches for EOPs. At the design stage of a plant, some particular
events are taken into account in order to establish the design basis of equipment so as to
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