Applications · Cable tunnels
Cable Tunnel Fire Protection in India
Metro and power utility cable galleries carry the infrastructure a city depends on through long, confined, largely unmanned runs. A cable fire in one of these tunnels is a slow-burning, high-value risk: cable insulation sustains fire for extended periods, smoke travels the length of the gallery, and any outage cascades to every system the cables serve.
Risk
Why cable fires behave differently
Unlike a vehicle fire, a cable fire is fuel-rich and self-sustaining along the length of a tray, and cable tunnels are frequently unmanned between inspections — detection and automatic suppression have to do the entire job before anyone arrives. Read the details in Cable Tunnel Fire Protection in India.
Design approach
Zone protection along the gallery
As in road and rail tunnels, cable galleries are divided into protection zones with section valves, so a fire on one cable run triggers suppression only in its own zone — limiting both water use and the outage footprint from the incident itself.
Why it matters
The uptime argument
For metro operators and power utilities, the cost of a cable tunnel fire is measured less in the tunnel structure and more in the service outage it causes. High-pressure water mist protects the asset without adding a secondary flooding risk to adjacent cable runs and equipment rooms — keeping unaffected sections of the network in service.
Next step
Request a cable tunnel system concept
Send us the gallery length, cable loading, and access constraints for your site.
Request technical assessment