25 Août 2016
August 24, 2016
Japan's Nuclear Regulation Authority is to instruct nuclear power plant operators to check if a less durable material has been used in their reactors.
The authority is taking the step after the steel in some parts of the reactor walls for a nuclear plant under construction in France was found to contain more carbon than it should. Steel with a high carbon concentration can be damaged more easily. The components are produced by a French company for export.
The regulators are to tell the operators to check the makers and production methods of the reactor walls and other equipment that is important for ensuring safety, and to report their findings by the end of September.
Under the Japanese criteria, the carbon content of the components in question should be 0.25 percent or less.
The regulators say if any plants are found to have used steel produced by the same method as the French material, they will investigate whether it meets the criteria.