Effort to pass review for checking conformity to new regulatory requirements for high temperature engineering test reactor, 2; Review of seismic design classification based on safety features of HTTR

Ono, Masato ; Shimazaki, Yosuke ; Ishitsuka, Etsuo   ; Iigaki, Kazuhiko 

The seismic design classification of HTTR was conservatively classified when HTTR was constructed, however the seismic design classification was reviewed with focus on the safety features based on the technical knowledge obtained from operations and calculations. The seismic design classification is one of the issues of checking conformity reviewed by the Nuclear Regulatory Agency.