Power outage at Fukushima Daiichi Nuclear Power Plant, temporary suspension of discharge of treated water into the ocean, one worker transported, power cable damaged during excavation: Tokyo Shimbun TOKYO Web

On the 24th, Tokyo Electric Power Co. suffered a power outage in part of the premises of the Fukushima Daiichi Nuclear Power Plant (Futaba Town, Okuma Town, Fukushima Prefecture), and the release of treated water containing tritium into the ocean after purifying contaminated water was suspended for about 6 and a half hours. It was announced that. It is believed that a male worker in his 50s accidentally damaged the power cable while excavating on the premises, causing the power outage. The worker appeared to have suffered burns to his right arm and was rushed to the hospital. His injuries are not life-threatening and he remains conscious.

◆The water injection equipment to the reactor was also powered by the same power source, but there was no impact.

The water injection equipment for the Unit 2 reactor was also using the same power source, but the power source was switched to continue cooling. It is said that equipment important for safety can be switched over. It is said that there are no abnormalities in the values ​​of radiation monitoring equipment (monitoring posts) due to the trouble. No leakage of contaminated water has been confirmed.

According to TEPCO, at around 10:43 a.m. on the 24th, a power outage caused a pump that pumps treated water to mix with seawater in preparation for discharge into the ocean to stop. At the same time, a worker was injured while removing concrete to lay a new power cable at a site about 600 meters west of Unit 2. According to the fire department, they called 911 and said, “During the work, he suffered electrical burns on his right arm.”

Discharge into the ocean resumed at 5:16 p.m., when pumps were activated. This time, approximately 7,800 tons are scheduled to be released starting on the 19th and ending on May 7th. There are no plans to change due to this problem. (Rokutaka Arai)