Safety related assessment of the Stendal nuclear power plant, Unit A, of the type WWER-1000/W-320

摘要

The safety assessment of the nuclear power plant Stendal A of the type WWER-1000/W-320 has been performed by GRS on the basis of the current safety guidelines and technical regulations that apply in the Federal Republic of Germany. It largely consists of an evaluation of the design of the plant. The weaknesses perceived have been listed; in some cases possible solutions for upgrading measures are suggested. Despite the insufficient documentation, a definite safety assessment could be performed for essential areas. This holds especially for the systems analysis, where the operating experience of other WWER-1000s could be utilized for the assessment of the Stendal plant, and for the analysis of loss-of-coolant accidents, where incomplete documentation was supplemented by some calculations performed by GRS. As a result it was stated that although the plant partially meets the requirements of the German regulations, it has considerable weaknesses in the design. In cases where the Stendal plant does not meet the requirements of the German regulations, technical investigations were conducted to explore whether a deficit in terms of safety arises and which measures could possibly be taken to eliminate these deficiencies. (orig./HP)