Fast and reliable fire detection
Fire detection in tunnel technical rooms can be challenging for traditional smoke detection systems. In an environment with often high concentration of equipment and cables, even minor short circuits can have serious consequences: The combination of electrical sources and combustible materials such as plastics means that fires typically start slowly with a long period of overheating and smoldering before erupting into flames; detecting smoke early is therefore essential to avoid the onset of flames. However, the high levels of ventilation necessary to prevent equipment overheating also disperse smoke, making it more difficult to detect and enhancing the risk of a fast fire distribution to other areas.
Our fire detection concept for tunnel technical rooms combines aspirating smoke detection and highly accurate smoke detection with Sinteso™ S-LINE detectors in the room, under raised floors or in cable ducts. Aspirating smoke detectors counteract the high ventilation levels by providing continuous air sampling and analysis. When smoke particles are detected, a pre-alarm is generated, triggering a ventilation shut down and enabling S-LINE detectors to verify the alarm. On alarm confirmation, the extinguishing system is activated.