Experience with licensing of Russian NPP operation extension

Since 2000, the works on operation of first generation NPP's units extension are conducting in Russia. The Gosatomnadzor of Russia developed regulatory documents with requirements in what a way the possibility of those units operation extension have to be substantiated. The operating organization carried out the unit's modification and performed the complex of measures on their preparation for operation extension, including survey works and in-depth safety assessment. A lot of deterministic as well as probabilistic safety analyses had been carried out. The independent expertise of the relevant substantiations was organized and conducted. The expertise results were considered by regulatory body in the licensing of the operation extension. (author)