A LIFE MANAGEMENT PROGRAM FOR THE BRUCE-A STEAM-GENERATORS

The four units at Ontario Hydro's Bruce A nuclear station are approach ing the mid-point of their operating lives. Increasing incapability du e to steam generators in particular has resulted in the creation of th e Steam Generator Programme and the development of a specific life man agement programme. An extensive programme of boiler inspections, clean ing and refurbishment has been carried out. This paper will provide an overview of the steam generator design features and the principle deg radation mechanisms, together with details of the approach adopted to develop the life management plan.