Dependability assessment of ITER cask et plug remote handling system during nuclear maintenance operations

D. van Houtte (1) , D. Elbeze (1) , Jp. Friconneau (2) , C. Lacroix (1) , C. Le Loirec (1) , M. Soldaini (1)

1 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)
2 ITER - ITER organization

Since the ITER Casks will be not shielded, human access will be forbidden in trajectory zones and, in the event of failure of Cask and Plug Remote Handling System (CPRHS) functions, rescue operations will have to be remotely conducted. As potential failure modes could be severe in terms of time to repair, an inventory of CPRHS function outages and a risk analysis have been made at each stage of a diagnostic port plug maintenance process. CPRHS availability has been calculated in the framework of a RAMI analysis and the resulting time to perform the CPRHS operations for the maintenance of 2 Equatorial Port Plugs (EPP) has been confirmed by using a probabilistic Monte Carlo approach.

Mots clés: ITER Cask Maintenance Hot cell RAMI Port plug

Domaines: Physique Nucléaire Expérimentale [nucl-ex]; Physique Nucléaire Théorique [nucl-th]

D. van Houtte, D. Elbeze, Jp. Friconneau, C. Lacroix, C. Le Loirec, et al.. Dependability assessment of ITER cask et plug remote handling system during nuclear maintenance operations. Fusion Engineering and Design, 2018, 136. ⟨cea-02339921⟩