Corroded pore was found at stainless pipe for liquid waste solution fro m the analytical laboratory. In order to find out the cause of corrosio , analytical samples were prepared cutting from the pipe. Reagents con ined chloride, which had been used analytical laboratory more than te years before the date, were found to be the trigger of the localized c rosion. We checked up all the pipes, which have been wasted including chloride solutions, by phased array instrument. We report the investig ion of cause o...
英字タイトル:
Investigation into corrosion cause of the reprocessing facilities analysis waste fluid plumbing.

Corroded pore was found at stainless pipe for liquid waste solution from the analytical laboratory. Part of the pipe was cut for preparing samples to investigate the cause of the corrosion. The same size of stainless pipe was welded to recover it, under the strict radiation control. The restoration work was done inside of the vinyl house, as it is called “greenhouse”, which was the small room completely separated with outside by vinyl sheet. All the works, cutting, decontamination, digging groove and w...
英字タイトル:
Restoration of the corrosion department of the reprocessing facilities analysis waste fluid plumbing.

After the Fukushima-daiichi accident, the KANSI Electric Power has implemented various safety measures against severe accident for nuclear power plants. In this paper, we w ill explain about overview of measures and internal flooding because of the high energy line break. The high energy line break may cause common mode failure like a fire (mu ltiplexed and diversified protection system may fail at same time by a single piping break). Therefore we have to take all possible measures for the prevention from ...
英字タイトル:
Safety measures for severe accident on the KANSAI nuclear power plants