Comparison of LOCA safety analysis in the USA, FRG, and Japan

The bases for loss-of-coolant accident (LOCA) safety analyses required by reactor licensing regulations in the United States of America (USA), Federal Republic of Germany (FRG), and Japan are investigated and related to new data obtained since the regulations were established. The licensing approaches used in the three countries are similar in that a conservative calculation is called for, the necessary conservatism is unspecified, and new research data have had only limited effect on changing the regulations.