Evaluation of the potential for Containment Bypass in VVER-1000/V320 reactor during extended SBO sequence using SCDAP/RELAP5 code

This study aims to evaluate the potential for “Containment Bypass” in VVER-1000/V-320 reactor during extended Station Blackout (SBO) scenarios that challenge the tubes by primarily involving a natural circulation of superheated steam inside the piping loop and then induce creep rupture tube failure.