At the Kashiwazaki-Kariwa Nuclear Power Station in Niigata Prefecture, it was discovered that multiple facilities for detecting intruders such as terrorists had been broken, and Chairman Sarada of the Nuclear Regulation Authority said that it was a serious case and told TEPCO for a long time. He showed the idea of ​​clarifying the cause by conducting additional tests.

At TEPCO's Kashiwazaki-Kariwa nuclear power plant, in January, a worker accidentally broke a facility to detect intruders such as terrorists, which triggered an inspection by the Nuclear Regulatory Commission. It turned out that multiple detection equipments were broken.



On the 16th, the Regulatory Commission announced a provisional evaluation that it would be the most serious of the four-grade evaluations related to nuclear material protection, etc., as it had been in a state of allowing unauthorized intrusion for a long period of time.



Regarding this, TEPCO revealed that 16 detection facilities had a failure, and although alternative measures were taken, the regulatory committee pointed out that countermeasures were insufficient for 10 facilities.



Regarding this issue, Toyoshi Fuketa, chairman of the Regulatory Commission, said on the 16th that it was a serious matter and said, "I will ask TEPCO to issue a report based on the evaluation of a third-party organization within 6 months. In addition, it is necessary to understand whether the cause is a problem of awareness or a problem of technology or knowledge, and what happened to the instructions and responsibilities of the administrator by the additional inspection. " I showed the prospect that it would be.



In addition, regarding the disposal of TEPCO, it was decided at a public meeting as much as possible, although it may not be possible to clarify the details of the circumstances in order to counter terrorism.



Regarding the Kashiwazaki-Kariwa nuclear power plant, it was discovered in September last year that an employee had illegally invaded the central control room, and TEPCO had just announced the disposition of executives such as President Kobayakawa last month.



In addition, it was found that the safety measures work had not been completed, and TEPCO has changed the process of restarting Unit 7, which was originally planned to be put into commercial operation in June, to undecided.

Expert "Lack of TEPCO's management system"

Detailed policy research on nuclear safety, such as being in charge of inspection at the former Nuclear and Industrial Safety Agency, regarding the possibility that the detection equipment that prevents unauthorized intrusion at the Kashiwazaki-Kariwa Nuclear Power Station has been broken since March last year. Professor Toshinori Nei of the National Graduate Institute for Policy Studies said, "The nuclear power plant is equipped with multiple devices such as surveillance cameras to detect unauthorized intrusions as a countermeasure against terrorism. It is an important facility, and this time is honestly unbelievable. However, it is probable that there was a lack of maintenance and management systems for TEPCO. "



After that, he said, "The Nuclear Regulatory Commission needs to ask TEPCO to thoroughly investigate the cause from the viewpoint of anti-terrorism measures and to strictly check whether the management system has been established in-house."