AP1000是在AP600的基础上发展起来的。AP1000比AP600在功率上有所增加,其堆芯结构和装载量及热工参数有所改变,但整个系统无大的改变。美国核管会认为由于设计发生了改变,这些安全 AP1000 is based on the AP600 developed. AP1000 AP600 than the power increase, the core structure and load capacity and thermal parameters have changed, but the whole system without major changes. The NRC considers these changes to be due to design changes