The Line Heat Detector is designed to provide early detection of fire conditions and overheating in circumstances where other forms of detection would not be viable, either due to inability to sustain the environmental requirements or through prohibitive costs. Extensive single zonal lengths of the Line Heat Detector Cable (LHDC) may be installed with the ability to trigger alarms for ‘hot spots’ occurring on very small sections of the overall cable. The Linear Heat Detector comprises a twisted pair twin core cable. Each core is of passivated steel and has special heat reactive polymer insulation. The cable has an overall protective jacket / sheath.The primary mechanism of heat (fire) detection is that inner core insulating polymer is specially formulated such that it plasticizes at a specific temperature. The cable is constructed such that the twisted steel cores are in tension, and at the polymer trigger temperature the conductors connect. This provides an alarm signal to any associated monitoring device.
Internally devloped by Novius RailTech