RBI를 적용한 화력발전소 수명연장 기술

Most of the power plant companies currently intend to save maintenance cost for profit and competition, in spite of an increase in aged power plants. They prefer life extension of operating plant to construct new one. The RBI(Risk Based Inspection) technology is gradually considered solution which can satisfy this needs. The RBI can provide quantitative reference for assessment of components condition and long term strategy of equipment management. Especially risk ranking of RBI is useful method to devise components replacement plan for life extension. This paper suggests procedure, how to apply RBI to power plant maintenance, and provides case study of 400 ㎿ oil combustion power plant life extension using RBI.