Sensor cable SKI-55 for indoor use and tunnels
The sensor cable SKI-55 consists of an optical fiber strapped to a temperature sensitive body. This forms a continuous line heat detector sensing temperature and indicating alarm at a defined temperature. Heat detection is provided continuously along the length of the sensor cable. The design is completely dielectric and therefore not affected by electromagnetic radiation or electrical discharge.
The monitor unit can covers 2000 m of sensor cable. Common practice is to configure the monitored area into alarm zones. The system allows supervision of up to 256 zones. Each zone can be configured as a continuous length of cable or a combined arbitrary number cable sections. Minimum length of a zone is two meters. Maximum zone length is equivalent to the entire length of cable.
The system is able to detect several hot-spots along the sensor cable and separate them in different zones as well as pinpoint the position of each hot spot. Indication of alarm to a surveillance system is made by traditional relay logic.