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目的分析PCO实施烟雾作业与消防自动报警系统发生冲突的原因,寻找消除这两者冲突的方法,保障PCO作业的正常进行。方法研究2004-2005年间两起PCO施烟雾作业引发消防自动报警系统启动的案例,进行分析、总结。结果在PCO作业中,现场实施的烟雾可引发消防自动报警系统的启动。结论高浓度和持续的烟雾是引发消防自动报警系统启动的主要原因,控制好适当的烟雾浓度或暂时关闭报警系统,仍可进行常规的PCO施烟雾作业。
OBJECTIVE: To analyze the causes of the conflict between the PCO smoke operation and automatic fire alarm system, find out the way to eliminate the conflict between the two and ensure the normal operation of PCO. Methods Two cases of PCO-based smoke-induced fire alarm system startup during 2004-2005 were studied, analyzed and summarized. Results In the PCO operation, the on-site smoke can trigger the activation of the fire alarm system. Conclusions High concentration and persistent smoke are the main reasons that trigger the initiation of automatic fire alarm system. It is still possible to carry out the routine PCO smoke operation by controlling the appropriate smoke concentration or temporarily shutting down the alarm system.