The safety of nuclear power station components

A pipe of the purification system made of an austenitic material X 6 CrNiNb 18 10 S and installed within the containment has been taken as an example of how the requirements of the regulations are fulfilled by the material, the design and the calculations, and which measures are used for implementation. The considerable safety margin in components in which the requirements of the regulations have been consistently implemented have been quantified for the piping system featured here by means of ductile fracture mechanics calculation procedures.