In the experimental fast reactor Joyo, maintenance work was conducted based on the classification of safety importance ov er thirty years. Through the experience, it was confirmed that particular effort was not necessary for the maintenance of sodium cooling systems by controlling the coolant purity properly. Additionally, as a result of the technical review on aging for whole plant, significant aging phenomenon that is particular with sodium cooled fast reactor was not observed....
英字タイトル:
Maintenance experience of Experimental Fast Reactor Joyo (1)The outline of maintenance activities in Joyo

Maintenance for five electromagnetic pumps in sodium cooling system of Joyo has been conducted successfully consi dering their operational and environmental conditions. As a result of the periodical surveillance over thirty yea rs, it was confirmed that the pumps could be maintained their integrity during the planned service period of Joyo. Additionally, based on the experiences, the long term maintenance program for electromagnetic pumps was decided....
英字タイトル:
Maintenance experience of Experimental Fast Reactor Joyo (2) The maintenance experience on the electromagnetic pumps in Joyo sodium cooling system