Process for remotely lining a steam generator tube of a pressurized water nuclear reactor

摘要

A liner (12) is inserted into the water box (3) through the manhole (9) vertically in line with the manhole, and then the liner (12) is moved as far as a position situated vertically in line with the tube (8) to be lined. The operations of inserting the liner (12) into the tube (8), of diametral expansion and of roller-expanding are performed by inserting a corresponding appliance into the water box (3) and using this appliance from an operating station (18) outside the water box, where the drive for the appliance is situated.