Nuclear power unit shut down because of warm water

The 884 MWe Unit 2 at the Millstone nuclear power plant in Connecticut was shut down August 12 after workers with Dominion (NYSE: D) discovered seawater used to cool the plant down was too warm.

The water cannot be warmer than 75 degrees, but it was measured at 1.7 degrees above the limit, according to The Associated Press. The Ultimate Heat Sink Technical Specification requires the unit to be in hot shutdown within six hours when the average temperature limit is exceeded.

The 1,227 MWe Unit 3 continued to operate at full power.

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