This TECDOC deals with organizational and managerial means to implement effective PLiM into existing plant in operating HWR NPPs. The guidance provided is applicable also to future HWR NPPs.

The objective of a PLiM programme is to effectively integrate ageing management programmes and economic planning to maintain a high level of safety, optimize the operation, maintenance and service life of SSCs, maintain an acceptable level of performance, maximize return on investment over the service life of the NPP; and provide NPP utilities/owners with the optimum pre-conditions for PLiM.

This TECDOC is primarily addressed to both the management (decision makers) and technical staff (engineers and scientists) of NPP owners/operators and technical support organizations, and will be also of interest to NPP regulators and designers. It is intended to be a living publication to be periodically updated and supplemented as new knowledge is gained.

The specific objective of the report is to assist HWR NPP owners/operators with PLiM programmes by providing guidance on:

• Typical processes and methodologies in HWR PLiM programmes, including plant organization considerations, technology infrastructure and supporting data management,

• Component-specific technology considerations for several of the most important HWR SSCs,

• Planning for long term operation (refurbishment/life extension),

• Strengthening the role of proactive ageing management, and

• Implementing a systematic ageing management process.[1]