At a depth of 60 m, the local electrical power provider Singapore Power is currently constructing a superior- type cable tunnel. Following completion, the tunnel will extend for a total of 35 km through the city, ensuring power supply. The tunnel has a diameter of between 6 and 9 m. The importance of the tunnel for supplying electricity to the state of Singapore necessitates particularly fast and effective firefighting. The firefighting agent needs to be kept low in terms of quantity, since this has to be transported across long distances and water damage needs to be minimized. At the same time, the firefighting agent should be harmless and environmentally friendly. The system should be installed in the tunnel using as little space as possible.
The entire length of the tunnel is protected by a FOGTEC water mist system. A single row of nozzles in the top of the tunnel is sufficient. Extremely low quantities of water are used despite the wide diameter of the tunnel. The FOGTEC water mist system was designed based on dedicated fire tests.
High pressure Water Mist Fire Suppression System comprising
Full redundant pump stations
Open nozzle system
Solenoid section valves
78,000 m of pipework
