Safety arrangement for tunnel fires has tunnel sections separated by curtains, and each section has at least one fire sensor to trigger closure of curtains in event of fire

摘要

The tunnel fire arrangement has tunnel sections (A) separated by curtains (1). Each section of the tunnel has at least one fire sensor (2), which triggers the mechanism for closing the curtains in the event of a fire. The curtains are closed by a motor controlled from the fire sensor and are drawn across the tunnel to hermetically seal the sections.