WORLD'S FIRST PWR REACTOR INTERNALS REPLACEMENT

摘要

Mitsubishi Heavy Industries, Ltd. (MHI) completed replacement work of the upper and lower reactor internals of the 566 MW Ikata Unit No.1 of Shikoku Electric Power Co., Inc. The event marks the world's first all-in-one-piece extraction and replacement work of its kind in a pressurized water reactor. The author wishes to introduce an outline and features of this milestone.