The reload strategy is from 12 months to 18 month of GNPS,the fuel assembly changed from AFA 2G to AFA 3G and core nuclear data been changed,thus many accidents need to be reanalyzed.

• 大亚湾核电站由年换料改为18个月换料,燃料组件由AFA 2G改为AFA 3G,堆芯中子学参数发生了较大变化。