Shake table investigation at Paks NPP

In the framework of the earthquake upgrading project at Paks NPP shake table investigations were carried out on cabinets and instrumentation and control instruments. Some devices were tested on newly developed shake tables. In the first series six instrumentation and control cabinets were tested with the main purpose to verify experimentally the results of calculations by COSMOSM code. in the second series the mechanical resistance of 8 instruments was rested. The third series the tested instruments were divided into two groups. Instruments in the first group were tested mechanically, while the functioning of instruments in the second group was tested during shaking. The fourth and fifth series of investigations involve test of new cabinets before installation, their functioning was tested during shaking