海水系配管の信頼性向上へ向けた保守点検の取り組み
概要
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 efforts to improve reliability and optimize the inspection cycle using this material.
