In the course of the morning, both units of the Beznau nuclear power plant (KKB) were put back into operation following clearance from the Swiss Federal Nuclear Safety Inspectorate (ENSI). The two emergency diesels, in which an assembly deviation had been detected in the shock absorbers (parts of the engine mountings), were repaired.
After the assembly deviation of the shock absorbers was discovered, the KKB immediately informed ENSI about the case, took the plants off grid and initiated steps to rectify this deviation. The assembly work could be completed earlier than planned because the necessary spare parts and the skilled personnel required for the work were available more quickly than expected.
The work was carried out under the supervision of ENSI.
During the restart of the power plant, steam was temporarily visible above the engine room. There is no danger to people or the environment.
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