Aging in the probabilistic safety analysis of Laguna Verde Nuclear Power Plant

To put into effect a probabilistic safety analysis which depends on the aging of equipment and components considered, fault rates dependent of the age are required. In order to optimize the incorporation of the aging to a probabilistic safety analysis, relative aging rates associated to the type of components are used. Is inside this context that linear approximation to the fault rates dependent to time are made, to infer the relative aging rates, applying with this the aging factors to the basic fault events which are related with the type of components considered for this study. Then is found the dependence of the frequency of core damage (FCD) with respect to the age of the type of components. (Author)