This article presents a new design of earthquake instrumentation that is suitable for quick decisionmaking after the seismic event at the nuclear power plant (NPP). The main objective of this work is to ensure more availability of the NPP by expediting walk-down period when the seismic wave is incident. In general, the decision-making to restart the NPP after the seismic event requires more than 1 month if an earthquake exceeds operating basis earthquake level. | Development of earthquake instrumentation for shutdown and restart criteria of the nuclear power plant using multivariable decision-making process
