ANS 2.2:2016

This standard specifies the required earthquake instrumentation used for the recording of seismic data and evaluation of the possible effects after a seismic event for the site and Category I structures of light water cooled and land based nuclear power plants. It may be used for guidance at other types of nuclear facilities. This standard does not address the following: a) instrumentation to automatically shutdown a nuclear power plant at a predetermined ground acceleration and b) procedures for evaluating records obtained from seismic instrumentation and instructions for the treatment of data