SAFETY ASSESSMENT OF NUCLEAR-POWER-PLANTS EQUIPPED WITH VVER REACTORS

The safety studies of the nuclear generating units of Greifswald and Rheinsberg have produced important basic findings for the assessment of nuclear power plants equipped with VVER reactors. Deficits in engineered safeguards design have been found in the three lines. i.e. VVER-440/V-230, VVER-440/V-213, and VVER-1000, The oldest line is thought to beyond backfitting, while design deficits in the two other lines can largely be correct-ed by backfitting measures. In Eastern Europe, safety studies are conducted by GRS and IPSN in close cooperation with national authorities. This is demonstrated by the safety assessment of units 1 to 4 on the Kosloduj site. Studies performed on a national level are supported by the German Federal Ministry for the Environment and, internationally by the European Community.