インサービス・インスペクション(ISI)の現状と問題点

抄録

Inservice Inspection (ISI) for the nuclear power plants is steadily progressing in Japan.
Philosophy and technology of ISI has been introduced from the U.S.A. In application of ISI to the plants in Japan, potential problems have been revealed as experienced, for example, discrepancies between the engineering requirements for component manufacturing and ISI, slow progress of development of ISI equipment and so on.
The problems of codes and regulations such as Section XI of ASME Code are discussed in relation with the actual application in Japan.