LIFE CYCLE MANAGEMENT (LCM) PLANNING FOR MAIN CONDENSERSAND ISOLATION VALVES

摘要

Life Cycle Management (LCM) planning is intended to provide an effective long-term planning tool with which tornminimize unplanned capability loss and optimize maintenance programs and capital investment consistent with plant safetyrnand an identified plant operating strategy. Such an operating strategy might include license renewal or retaining the option forrnlicense renewal. An LCM Plan addresses such issues as aging management, preventive maintenance, technical obsolescence,rnand the replacement or redesign of a system, structure, or component (SSC) important to safety and plant operation. In short,rnLCM Planning is viewed as a viable process with which to systematically identify and examine important SSCs; optimizerntheir contribution to plant safety, reliability, availability and value; and prepare long-term maintenance management plans forrnthem.rnIn 1998, EPRI initiated the development of a new LCM planning process in cooperation with two utilities, NorthernrnStates Power Company and Duke Power Company. The first phase of the EPRI project established a methodology tornsystematically evaluate SSCs for the purposes of LCM planning, generated an SSC selection process, and developedrnsoftware tools for LCM planning. It also successfully validated the software tools by demonstrating the process for threernselected systems at each of two plants.rnThe second phase of this EPRI LCM planning demonstration program has the objective of applying the LCMrnplanning process and tools developed in the first phase of the project to three selected SSCs at each of two additional plants,rnthe VC Summer Station and the Wolf Creek Nuclear Power Plant.rnThis paper provides a brief discussion of the applied process and results in terms of evaluated alternative plans andrnoptimum LCM plan for one example SSC for each of the two plants.