Calvert Cliffs Shuts Down Twice

Tuesday, July 31, 2012 @ 02:07 PM gHale


A monitoring instrument line leak at Lusby, MD-based Calvert Cliffs Nuclear Power Plant Unit 1 resulted in shutting down the reactor twice in the same week.

The leak from a reactor coolant pump differential-pressure sensing line, which is for monitoring purposes only, first became apparent July 17, said Neil Sheehan, a Nuclear Regulatory Commission (NRC) spokesman.

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After the initial leak, Constellation Energy Nuclear Group shut down the unit for maintenance. However, during a check this past Saturday, the crews noticed the same small drip, said plant spokesman Kory Raftery. Officials shut down the unit again and maintenance crews are “replacing the whole [tubing],” Raftery said.

After replacing the equipment, there will be “meticulous testing … to ensure [the leak] is taken care of,” he said.

During both incidents, neither the public nor the facility were at risk, Raftery said.



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