A new inspection standard that enhanced quality of operating/maintenance management of the nuclear power plant was introduced in 2009. Although after the 11 Mar 2011 disaster, the situation surrounding the nuclear industry has dramatically changed, and the requirement for maintenance management of nuclear power plants is expected to become stricter.
The new inspection standard requires enhancing equipment maintenance. It is important to enhance maintenance of not only equipment but also piping and pipe support. In this paper, the methodology for enhancing the maintenance plan based on the maintenance program for piping and pipe support is determined.