An Analysis of Loss of Offsite Power Sequence for the Severe Accident Analysis Database (II)

This report contains analysis methodologies and calculation results of loss of offsite sequences for the severe accident analysis database system. The Korean standard nuclear power plant has been selected as a reference plant. Based on the probabilistic safety analysis of the corresponding plant, Twelve accident scenarios, which was predicted to have more than 10-10 /ry occurrence frequency, have been analyzed as base cases for the loss of offsite sequence database. The functions of the severe accident analysis database system will be to make a diagnosis of the accident by some input information from the plant symptoms, to search a corresponding scenario, and finally to provide the user phenomenological information based on the pre-analyzed results. The MAAP 4.06 calculation results of loss of offsite sequence in this report will be utilized as input data of the severe accident analysis database system. This report updates and complements a previously published Technical Report