Comparative Analysis of Lighting System of CAP1000 and HPR1000

The lighting system is an important part of the nuclear power plant electrical system, which plays an important role in the proper operation of the power plant personnel., proper start-stop and safe and reliable operation of equipment., emergency operation, and evacuation of personnel under accident conditions. This paper introduces the requirements and characteristics of the lighting system design of nuclear power plants of CAP1000 and HPR1000, and introduces the power supply modes and related requirements of normal lighting and emergency lighting according to their functions and application conditions., and highlights the lighting reliability and power supply diversity requirements of the lighting of the main control room under various working conditions. Through comparative analysis, the relationship between the lighting classification of the two models and the operating conditions of the nuclear power plants they respond to is elucidated., to understand the design concepts, advantages, and disadvantages of the two models, and to provide a reference for the design of the lighting system of new nuclear power models in the future, how to ensure the reliability of the lighting system and improve the economy at the same time.