Linear Fire detector for tunnels and galleries.

Building fire detection systems are not an option for tunnel installation, as their sensor technologies or maintenance costs due to harsh working conditions make them inappropriate. The area covered by conventional detection devices is not so big so the number of devices required will be unacceptable.

For tunnels a specific fire detection cable was developed. The ORLINE 2L linear fire detector has a thermo-sensitive isolation, once temperature reaches 65/70 ºC its copper cables short-circuit and activate an alarm. Installation is done with a support wire that can easily be fastened at the ceiling of tunnels so dirt, soot or moisture don't affect the system.

ORLINE 2L cable is connected to the CADE 8 device for control. This device provides auto checking and fast detection of the exact location of the fire in up to 14 sections of the cable length. As it provides an EIA 485 interface it can send data directly to a SCADA as well as trigger equipment directly connected to its relay outputs.