Run/repair/replace or refurbishment decision making is the day of today in an open market a more strategical approach than the last decade. The best technical solution for higher assets is a must which can only be achieved by applying a mixed methodology of Remaining Life Time (RLT), Risk Based Inspection (RBI) & Reliability Engineering (RE). This paper gives an overview of the RLT & RBI methodology applied by Laborelec for the Belgian Power generator Electrabel. As further explained in the paper the Laborelec Remaining Life Time (RLT) methodology; mainly based on corrosion, creep and thermal fatigue principals, is structured in a multi-level approach where the final scientific approach is a mix of design, operation & maintenance history in combination with quantified material characteristics. The scientific approach results in a theoretical creep & thermal fatigue remaining life estimation extended with recommendations of future predictive inspection intervals or run/repair/replace decisions. These recommendations are determinated by the complementary Risk Based Inspection (RBI) & Reliability Engineering (RE) home developed methodologies. Some practical examples will show the benefit of this "three-dimensional" approach.
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