Main problems of research into WWER reactors

A survey is presented of the principal research studies made by SKODA Plzen into WWER type reactors, reactor physics and the technical and nuclear safety of light water reactors. Load test equipment is described used for t-ensile tests of bodies whose dimensions are comparable to those of pressure vessel walls. Technical diagnosis and in-service inspections of nuclear power facilities, and water regime problems are also discussed. (J.B.)