Fulfilment of Finnish Safety Regulations in Design, Execution and Condition Monitoring of Welded Joints in Nuclear Pressure Equipment of VVER-1200 Reactor

Abstract

The aim of this thesis has been to compare and assess the requirements applicable to the welded joints of nuclear pressure equipment, and lay the basis for further discussions on what might be the practical impact of the deviations identified. The thesis gives an overview of the regulatory framework and defines the applicable codes and standards, which may be used as a reference guide for a better understanding of requirements applied in the nuclear sector related to the integrity of welded joints.