Evaluating containment operational reliability of nuclear power plant units with the VVER-1000 reactor in operation

Abstract

The theory of the containment technical condition estimation of NPP units is considered in the paper. The theory is that the results of a regular built-in system intended for determining and evaluation of the containment stress-strain state during the acceptance and operation period must be duplicated by the mobile geodetic system results, obtained at the same stages of the containment existence. At the same time, the proposal for applying this theory to the containments constructed in 1980-2010 has been developed. The possible initial working environment is considered and the proposals for this technique implementation are introduced in the conditions under consideration. The proposals presented provide an objective control of the containment for an unlimited period of their operation.