External events

• The Integral water-cooled reactor being compact provides better protection from external events due to a reduction in the number of primary pipelines

• Resistance to earthquake is a strong positive feature for integral reactors Other external events have to be treated in a way similar to other reactors

• The reduced probability of internal events increases the relative importance of external events in the safety analysis of integral reactors

5 7 Human factors

The Integral water-cooled reactor provides slower progression of thermal and hydraulic processes in the primary circuit It prolongs the grace period and decreases the human factor effect

5 8 Emergency Evacuation

The enhanced safety of integral water-cooled reactors significantly decreases the probability of accidents which require population evacuation

5 DECOMMISSIONING

Greater attention should be given to the problems of decommissioning in all phases of integral reactor design Decommissioning cost must also be taken into account in technical and economic estimates