Tokai No.2 Power Station (Tokai II) has been operated more than 40-years. At 2018,we completed the 40-years Aging Management Technical Evaluation (AMTE), and concluded that most of component and structure would be maintained their integrity by continued existing preservation activities, even assuming the operation period of 60 years. In this paper, we explain several technical matters that were particularly discussed at AMTE, for example, thermal aging for casting stainless steel, neutron irradiation embrit...
英字タイトル:
Aging management technical evaluation for Tokai No.2 Power Station

In the seawater system of nuclear power plants (NPPs), piping with polymer lining material is used to prevent corrosion. In recent years, however, seawater leakages due to aging deterioration of lining material have occurred, and improvement of reliability is needed. In response to the development of a polyethylene lining material with high durability that greatly exceeds the performance of conventional products and the start of its application to NPPs in operation ,this paper introduces the current of effo...
英字タイトル:
Maintenance and Inspection Efforts to Improve the Reliability of Seawater System Piping