Early and reliable fire detection in tunnels
Low-maintenance highly localisable linear heat detection
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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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
