Nuclear power plant restart activities resume

Bruce Power on March 19 began to restart Unit 2 at the Bruce A Nuclear Generating Station following the repair of a detected leak.

Unit 2 had been returned to a guaranteed shut down state on March 17 after the detection of a leak due to a defective gasket in the moderator system. The Canadian Nuclear Safety Commission (CNSC) said the leak was entirely contained and the gasket replaced. There was no radioactive release to the environment and no plant workers received any dose as a result of the event. The other units in the station were not affected.

CNSC on-site staff monitored the investigation carried out by Bruce Power, reviewed and accepted its conclusions, and are satisfied with the actions taken to prevent recurrence. As planned, CNSC staff were in the Bruce Power main control room to monitor the resumption of restart activities.

The incident does not affect last week’s decision by the CNSC to authorize the removal of shutdown guarantees and allow Bruce Power to proceed with the restart of the recently refurbished Unit 2.

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