Probabilistic safety assessment methods are used to calculate nuclear power plant durability and resource lifetime. Successful calculation of the reliability and ageing of components is critical for forecasting safety and directing preventative maintenance, and Probabilistic safety assessment for optimum nuclear power plant life management provides a comprehensive review of the theory and application of these methods. Part one of this important book reviews probabilistic methods for predicting the reliability of equipment, whilst the practical applications of probabilistic methods for strength reliability are explored in part two.