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Takahama Unit 4 postpones resumption of operation due to rising equipment temperatures

Unit 4 of the Takahama Nuclear Power Plant of Kansai Electric Power Co.

October 21, 2022
On October 21, KEPCO announced that it had postponed the restart of the Takahama Unit 4 reactor, which is currently shut down for routine inspections, due to a temperature rise in one of the devices inside the reactor containment vessel that is activated when there is a problem with the primary cooling system. The reactor startup scheduled for the 21st will be postponed due to a temperature rise in one of the devices that operates in the reactor containment vessel in the event of a primary cooling system problem.
 After the reactor start-up on the 21st, the plant was scheduled to resume power delivery on the 24th and commercial operation on November 18. KEPCO was planning to resume commercial operation on November 18. KEPCO is investigating the impact on the process and the cause of the temperature rise.
 According to KEPCO, the temperature rose because of one of the safety devices used to reduce the pressure that rose due to a problem in the primary cooling system. The temperature was 4.2 degrees Celsius at around 3:30 p.m. on March 21, but it rose to 77 degrees Celsius at around 4:35 p.m., triggering an alarm.
https://www.tokyo-np.co.jp/article/209502?fbclid=IwAR3dktnvsjEKFDfgo3U1N_aguXV53mX5X7AURPw_J7_XArDcUkMPgjIh-dk

October 26, 2022 - Posted by | Japan | , ,

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