A TRANSPORT / STORAGE CASK TAILORED TO JAPANESE NEED: THE TK 69 CASK

Within the back end management, dry interim storage especially directly on the Nuclear Power Plant site is one solution. Therefore, it is a good opportunity for two companies to bring their complementary know-how and feed back on more than 200 interim storage casks sold, in order to provide to the Japanese Utilities a new design with high capacity with the best safety conditions. When a Japanese utility reveal its request for proposal, Kobe Steel Ltd. and Transnucléaire decided to start a joint work so as to profit by the experience of both companies. The fruitful common work between the two companies lead to the design of the TK 69 that permit the loading of 69 BWR fuels assemblies. This high capacity was achieved by careful optimization of the design whilst paying strict attention to the safety requirements for both transport and interim storage.