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Method for cooling pipelines of fire-fighting system in tunnels, involves receiving pre-alarm signal and opening multiple area valves in reaction on received pre-alarm signal in partial manner
Method for cooling pipelines of fire-fighting system in tunnels, involves receiving pre-alarm signal and opening multiple area valves in reaction on received pre-alarm signal in partial manner
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机译：隧道消防系统管道的冷却方法，包括接收预报警信号，并部分响应收到的预报警信号打开多个区域阀门
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摘要
The method involves receiving a pre-alarm signal and opening multiple area valves (10a,10b,10c,10d) in reaction on the received pre-alarm signal in a partial manner. A fire zone is detected. The partially opened area valves are closed and are unallocated to the detected fire zone. The area valves are opened completely. An independent claim is also included for a fire-fighting system with a main supply line.
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