Design of nuclear instrumentation system for Liaoning Hongyanhe nuclear power plant

The paper introduces the design work of the nuclear instrumentation system for Liaoning Hongyanhe Nuclear Power Plant. It focuses those pivotal design contents such as the system function, the structure and equipment function configuration scheme, the calculation, analysis and test validation to system vital technical parameters and the equipment signal interface design. The commercial operation of the nuclear power plant proved that the design work of the system was successful. (authors)