AP600 reactor system description and development status

Use of simple, dedicated, independent passive safety systems that require no operator action for 72 hours post accident, and maintain core and containment cooling indefinitely without AC power. [Pg.63]

Predicted core damage frequency 10 per year and a significant release frequency 1 O per year. [Numbers listed are the objectives Current estimates are core damage frequency of 3 x 1C and significant release frequency of 9 x 10 ] [Pg.63]

Robust design with at least 15 percent operating margin on core parameters and designed for rated performance with up to 10 percent of steam generator tubes plugged at a maximum hot leg temperature 316 C. [Pg.63]

Use of proven power generating system components which require no plant prototype. Plant design objective of 60 years without reactor vessel replacement. [Pg.63]

Overall plant availability goal greater than 90 percent considering forced and planned outages. Objectives for unplanned reactor trips less than one per year. Objective for a refueling outage free of major problems is completion in 17 days or less (breaker to breaker). [Pg.63]

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