White paper on nuclear safety in 1992. 1992 ed.

When the development and utilization of nuclear power are advanced, of course the securing of safety is the prerequisite. The Nuclear Safety Commission has promoted the various important measures which become the basis for securing the safety, such as the execution of strict safety examination, the preparation and perfection of the guidelines used for safety examination, the holding of public hearing, the investigation of faults and troubles, and the reflection of the learnings obtained to safety countermeasures. As to the accident of steam generator tube breakdown at Mihama No. 2 plant that occurred in February, 1991, the abnormal release of radioactive substance was prevented by the safety function, but it is important to secure high reliability by preventive maintenance. In this book, the activities of Nuclear Safety Commission, the safety regulation and the securing of safety in nuclear facilities, the investigation of environment radioactivity, disaster countermeasures and safety research, the securing of safety in nuclear fuel cycle and so on are reported. The various materials related to Nuclear Safety Commission are attached. (K.I.)