Montreal Nuclear Services
Develop Gentilly-2 site-specific level 2 PSA methodology and models.
To be compliant with regulatory requirements from the Canadian Nuclear Safety Commission (CNSC), Hydro-Québec had to perform an analysis of the seismic capacity of the NPP to support the plant refurbishment. The PSA-Based SMA was chosen as the approach.
The scope included
Preparation of the Safe Shutdown Equipment List (SSEL) and of the walkdown
Review of the fragility analyses
Relay Chatter Analysis
Accident sequence quantification (ASQ) and analysis
The models used up-to-date Gentilly-2 operation practises and PSA models.
The work was contracted by Hydro-Québec to AECL (Atomic Energy of Canada Ltd).NOTE: This work was performed / supervized by MNS personnel during their previous employment
Methodolgoy was presented to CNSC and accepted
Level 1 PSA-Based SMA was completed
The SMA showed that Gentilly met the overall plant HCLPF safety goal provided recommendations were implemented