Ministry Ordinance determining the technical standard concerning atomic energy facilities for power generation

This Ministry Ordinance shall be applied to the electric works installed for generating power utilizing atomic energy as motive power. In case there is some possibility that reactor facilities and steam turbines driven by primary or secondary cooling material may suffer damage by disaster, fire, earthquake and vibration, protective measures should be taken. Barriers have to be made to prevent illegal trespasses. Reactor facilities should meet several requirements. Safety valves should be mounted at specified places. Safety facilities should be installed. The material and structure of containers and pipes belonging to reactor facilities should meet separate standards. The containers, pipes and main valves belonging to reactor facilities should pass pressure-resistant test. Primary cooling material should maintain necessary physical and chemical properties under the most strict conditions of pressure, temperature and radiation. In an atomic energy power station, should be provided an apparatus for circulating primary cooling material with the capacity capable of removing the heat generated inside a pressure vessel of a reactor. In said station, a core cooling device for emergency must be provided as well as measuring instruments, warning apparatuses and emergency stop apparatuses. (Rikitake, Y.)