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Vol.9 No.2previous AASP17 (125-126-127-128-129-130-131-132-133-134-135-136-137-138-139-140-141-142) NT85

Academic Articles
Regular Paper Vol.9 No.2 (2017) p.112 - p.117
 

Safety and Standardization Issues of Nuclear Power Plants in Design and Operation on ISO12100 of Safety Design Principle

 
Michitsugu Mori 1,*
 

1 Graduate School of Engineering, Hokkaido University kita13 Nishi8, Kita-ku, Sapporo, 060-8628 Japan

 
Abstract
A huge tsunami induced by the earthquake which occurred on March 11, 2011 in the Pacific Ocean off the coast of the Tohoku region in Japan led the TEPCO Fukushima Dai-ichi (Number-1) nuclear power station into the station blackout due to a loss of all external power, and the units 1 to 3 (out of 6 units) have led to the core meltdown by losing all core cooling functions. On the other hand, three BWR units in operation at the Onagawa nuclear power station of Tohoku Electric Power Company, which is located most closely to the epicenter, could keep safe from any serious damage despite the fact that the tsunami run-up height had reached to 13.8m. The tough decision was made at the time when the nuclear power plant at the Onagawa site was newly constructed with the land elevation of the ground height by 14.8m. Considering such eventual sequences and as lessons learnt, discussions are made on what should be taken into account in the design and construction, and the operation as the standard and regulation to reduce the risk on ISO12100 of the safety design principle as the world’s global standard and the confidence-rebuilding measures for future nuclear power plants.
 
Keywords
Nuclear Power, Safety, Severe Accident, Accident Management, Standardization , Risk Assessment, ISO12100
 
Full Paper: PDF
Article Information
Article history:
Received 6 November 2016
Accepted 27 April 2017