Training reactor VR-1

Emergency preparedness of the reactor

Emergency preparedness of the reactor is, according to the Czech law, defined as an ability to recognize radiation accident occurrence and ability to fulfill the precautions defined by emergency plan in case that such an accident occurs.

Requirements on emergency preparedness are given by the corresponding notice of the State Office for Nuclear Safety on nuclear facilities emergency preparedness provision and on emergency plans. The internal emergency plan has been created based on performed emergency analysis; emergency events with both radiation and non – radiation consequences were analyzed.

Consequences of initiation events from the list recommended by IAEA were assessed within emergency analysis. Among those events are for example loss of power supply, various possibilities of undesirable positive reactivity release (like insufficiently secured subcriticality during refuelling, control rod failure, loss of control during reactor start up), loss of coolant, faulty manipulation and special internal (fire, explosion) and external (floods, fire, traffic disaster) events.

The analysis results evidently show that, if the basic principles and procedures are kept, the reactior operation is fully acceptable in its locality in densely populated area; simultaneously, the reactor is well-utilizable for the purpose that it was designed for.

The emergency plan consists of intervention instructions for particular emergency events, emergency monitoring program, workplace calling together plan etc. Particular parts of the emergency plan (reactions on selected emergency conditions and their combinations) are annually drilled in emergency trainings.

© DNR FNSPE CTU in Prague, 2017