Early and reliable fire detection in tunnels
Addressing traffic jams in and around urban centres and bringing connectivity to remote mountainous regions, the world’s vast network of road & rail tunnels is expected to continue growing in decades to come. From a fire safety perspective, tunnels are unique: very long and hard to evacuate, fires and smoke can spread dangerously fast and tunnels are therefore a highly regulated area. Fast moving fuel-laden vehicles are the principal fire hazards, but there are also electrical and equipment risks. Exhaust fumes in a confined space with forced ventilation mean reliably detecting smoke in a tunnel without false alarms is impossible – instead, SecuriHeat LIST linear heat detectors employ individual sensors embedded in a robust cable for highly sensitive and localizable heat detection.
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Securiton’s low-maintenance highly localisable linear heat detection system, SecuriHeat LIST, is ideal for protecting tunnels. With a cable length of up to 3,500m and hundreds of individual sensors, the system is suitable for almost any road or rail tunnel and withstands heavy cleaning.
Causes of fires in road and rail tunnels
- Collisions
- Vehicle malfunctions, including EV fires
- Electrical and other equipment
- Accidental release of fuel
Challenges for the fire protection in tunnels
- Exhaust fumes and forced ventilation
- Need for early warning due to egress difficulties
- Maintenance access means stopping traffic
- Pressure cleaning is commonplace
Key benefits of SecuriHeat LIST
- Up to 3,500m cable length
- Individual sensors for precise localised detection
- Tough cable withstands cleaning
- Control units mounted in an easily accessible location
- Possibility of redundant design
