W251003 Fukushima Dai-ichi Nuclear Power Accident: Challenge of manufacturing, safety, and standards

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  • W251003 福島原発事故:ものづくりと安全・標準化の課題

Abstract

Accompanied by huge tsunami, the Pacific Ocean earthquake off the coast of the Tohoku region, occurred on March 11 2011, led Fukushima Dai-chi Nuclear Power Station into the station blackout with external power loss all, and Units 1 to 3 have led to the core meltdown except for the Units 4 to 6 which were under scheduled inspection, losing all core cooling functions. On the other hand, three Units at rated operation in Onega Nuclear Power Station most closely to the epicenter were spared from any serious damage. The discussion was made on what should be taken into account for design and construction, and what should be taken into account after the start-up and operation as the standard and regulation to reduce the issues on risk.

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