Minimizing Operating Error During a Major Upgrading Program at a Multi-Unit Nuclear Plant

Abstract

The extended forced outages for ceactor retubing of Pickering Units 1 and 2 presented a unique opportunity to implement a major upgrading program. However, the program could not be quickly implemented on Units 3 and 4 and steps had to be taken to minimize the operational peoblems that could develop during the period of change. Operating staff who had trained on identical units would be faced with significant differences between original and upgraded system configueations. Preliminary results indicate that a successful program was put in place to manage the change and no significant increase in ereor rates has occurred.