方家山核电厂火灾频繁误报警原因分析及策略

火灾报警系统是核电厂消防系统的重要组成部分,运行人员通过火警主机CRT及DCS二层报警系统判断现场是否出现火警情况,火灾报警系统的可靠性决定了机组运行是否存在潜在火灾风险.本文阐述了方家山机组运行以来,对"方家山火灾频繁误报警"的报警进行分类统计和原因分析,针对典型的、占比较高的缺陷类型制定了应对策略,并对相关的优化改...

Cause Analysis on and Countermeasures against Frequent False Fire Alarms in Fangjiashan NPP

The fire alarm system is an essential part of the fire control system in nuclear power plant.Operators can judge whether there is a fire alarm on site through CRT and DCS two-layer alarm systems installed on the fire alarm host.The reliability of the fire alarm system determines whether there is a potential fire risk for unit operation.This article has described the classified statistics and cause analysis for the frequent false fire alarms in Fangjiashan since the Fangjiashan units went into operation,formulated a coping strategy for typical and relatively high defect types,and carried out a summary of related optimization and transformation,in an attempt to provide some reference and guidance for other NPPs.