The Nuclear and Industrial Safety Agency (NISA) has ordered two power companies to conduct a fresh survey at two nuclear plants to determine if fractures running under the plants’ grounds are active faults.
The Nuclear and Industrial Safety Agency (NISA) has ordered two power companies to conduct a fresh survey at two nuclear plants to determine if fractures running under the plants’ grounds are active faults.
The agency issued the order on July 18 to Kansai Electric Power Co., which operates the Oi plant in Fukui Prefecture, and Hokuriku Electric Power Co., which runs the Shika plant in Ishikawa Prefecture.
NISA instructed the two utilities to submit survey plans, which are to include locations to directly assess the possible active faults, by July 25 for the Shika plant and within July for the Oi plant.
NISA will examine the adequacy of those plans at an expert meeting at the end of the month, and conduct on-site surveys with the help of experts.
During the survey, NISA will not order Kansai Electric to halt operations of the Oi No. 3 and No. 4 reactors, which were recently restarted.
However, it will not allow the reactivation of the idled Shika No. 1 and No. 2 reactors until the end of the survey.