FUKUSHIMA – Tokyo Electric Power Co. said Monday it has given up attempts to recover a second shape-shifting robot sent in to check the damaged primary containment vessel of reactor 1 at the crippled Fukushima No. 1 nuclear power plant.
The second robot, deployed Wednesday to measure radiation in the vessel, was working properly but saw a monitoring camera essential to its recovery break down, Tepco said.
The electronics of the camera were apparently damaged by the high radiation in the PCV, the utility said. When powered up, the camera is designed to work for 10 hours in the intense radiation, but Tepco was unable to switch it on Saturday.
The camera is needed to monitor the remotely controlled robot for retrieval. The robot assumed a new shape to conduct the survey after crawling through a narrow pipe to enter the vessel.
The camera breakdown will not affect the surveys, the company said.
The first survey robot, dispatched on April 10, got stuck in the PCV after covering about two-thirds of its planned route and remains inside.