State-oriented accident management and emergency procedures at Gundremmingen nuclear power plant / Zustandsorientierte Störfallbehandlung und Notfallschutz im Kernkraftwerk Gundremmingen

Abstract

The safety of nuclear power plants is inherent in the actual plant design in the form of a great number of quality assurance measures carried out during planning, construction, erection and operation. Probabilistic system analyses (PSAs) yield a residual probability of 10 6 to 10 5 cases per reactor and year for a core meltdown accident to occur. This residual risk can be considerably reduced by in-plant accident management actions. More than 80 individual accident management actions have been prepared for each unit of the Gundremmingen nuclear power plant. The implementation instructions in this respect are listed in the Emergency Manual (EM). To facilitate the decision-making process on exactly which measures are to be implemented in which stuation. a so-called Emergency Operating Procedure (EOP) was developed. Great importance is placed on training of personnel to decide on and implement these accident management actions. To ensure that the knowledge gained can be optimally applied in the event of an accident, refresher courses are held at regular intervals. To guarantee the optimal handling of scvere accidents, a dedicated organization called the Emergency Reponse Organization, also known as the crisis management team, was established.