SEISMIC SAFETY MARGIN ASSESSMENT FOR ELECTRICAL COMPONENTS UTILIZING FULL-SCALE TEST

摘要

In Japan, the Regulatory Guide for Reviewing Seismic Design of Nuclear Power Reactor Facilities (2006) requires that residual risk for earthquakes beyond design base be considered. Moreover, in the Niigata-ken Chuetsu-oki earthquake (NCOE:2007), the earthquake motion exceeded the seismic design condition of the Kashiwazaki-Kariwa nuclear power plants (K-K NPPs). In response to these issues, there is a growing demand for quantitative clarification of seismic safety margin.