August 4th 2021 Japan’s Kansai Electric Power Company’s Daiichi nuclear power plant Unit 3 occurred a seawater leak. Kansai Power said there had been no radioactive material leak and that the surrounding environment had not been affected.
The unit had previously been suspended for a long time and did not resume operations until July 30 this year.
According to Japan’s “Daily News” reported on the 4th, the same day around 5 a.m., the Otsu nuclear power plant Unit 3 turbine room drainage tank water is higher than normal, and triggered an alarm.
Subsequently, the staff found a pipe to the rehydration of seawater leakage, so shut down one of the two pumps, nuclear power unit output power once reduced to about 65%. In order to cool the high temperature steam generated by the turbine unit, the nuclear power unit draws seawater from the sea and sends it to the rehydration unit.
In July 2020, Unit 3 of the Daimi nuclear power plant was found to have damaged pipes during regular inspections, and then was suspended for a long time until July 30 this year.
