Anylisis Of Passive Nuclear Power Plant Lighting System Configuration And Critical Technology Research

Lighting system is an important branch of electrical system and important component of nuclear plant electrical system.Lighting system plays a significant role in the safety running of equipment,emergency operation of accident conditions and personnel evacuating.Lighting system is supplied by the NI electrical system,having direct interface with main AC power system and class 1E DC and UPS system.Lighting system has the electrical element like the short circuit fault,voltage drop and circuit breaker settings,etc.meanwhile,the main emphasis of lighting system is the lighting attribute like illuminance,glare,energy efficiency and types of luminaires.These become the question that lighting engineers must think about.The passive nuclear power plant design is quite different from other active nuclear power plants.The lighting system of the passive nuclear power plant introduces several new configurations like lighting control system and dimming system in MCR.These new configurations have a marked impact on the traditional lighting system design and challenge on the system reliability.At the same time,the incandescent fixture used in the traditional containment lighting design becomes the weakness in the modern nuclear lighting system.This article first claims the important theory,calculation method in lighting design,and then provides the typical attribute of lighting sources and luminaires,and last explains the important influence about the condition to lighting system.Based on the operation requirements and characters of main area lighting system,the emphasis of this article is to analysis the configuration strategy and design method,simulate using DIALux and other software,extract the key factors that have a major influence on nuclear lighting system.After that,this article study the feasibility of LED application and double lighting source to solve the issue caused by the key factor.At last,this article provides the suggestion of improvement of lighting system configuration for the passive nuclear power plant,as to optimize the effect of nuclear lighting system and provide a important basis for the coming nuclear lighting standard.