Regarding the fact that the investigation inside the containment vessel was postponed due to trouble at Fukushima Daiichi Nuclear Power Station Unit 1, TEPCO was affected by the electromagnetic waves generated when turning on the equipment that winds up the cable connected to the robot. , Revealed that there is a high possibility that trouble has occurred.
TEPCO was planning to start investigating the inside of the containment vessel at the first unit of the Fukushima Daiichi nuclear power plant on the 12th of this month, but at the stage of preparatory work, after turning on multiple devices, it is built into the robot. The investigation was postponed due to problems such as the data of the equipment that measures the radiation dose not being displayed accurately.
TEPCO held a meeting on the 17th, and it is possible that the electromagnetic waves emitted when turning on the device called "cable drum" that winds up the robot's cable affected the system that sends radiation dose data. It was revealed that it was expensive.
In the future, TEPCO will install the cable that sends power to the "cable drum" and the cable that sends radiation dose data separately, and check whether the data is displayed correctly.
In the preparatory work, there was also a problem that the time display of the camera mounted on the robot stopped, and the cause could not be identified, so there is no prospect of starting the investigation.