English
Arabic
French
German
Portuguese
Russian
SpanishOverview
Digital Linear Heat Detection Cable
The Digital Linear Heat Detection Cable comprises of a twisted pair, two core cable. Each core is a tinned copper coated spring steel conductor and has special heat reactive polymer insulation. The cable has a protective chemical and UV resistant outer jacket / sheath. Additional mechanical protection is provided with optional Stainless Steel outer armour.
How it works
The Digital LHDC operates by reacting to heat (fire). The insulators between the two conductors plasticise at the design temperature, creating a switch circuit at the point of operation.
The Linear Heat Detection Cable is employed in conjunction with an end of line terminating device for continuity monitoring and a zone monitoring controller to provide outputs for Fire and Fault. An LHDC controller with Distance Location (up to 2000m) to the point of operation is also available.
As the Digital LHDC provides a simple switched output on operation, the LHDC can be monitored by a conventional or Analogue Addressable zone monitor.
Products
Cable
Digital Linear Heat Detection Cable (LHDC)
The Patol Digital Linear Heat Detection Cable is designed to provide early detection of fire conditions and overheating.
Find out more
Controllers
LDM-519-DDL
The module is designed to monitor a length of Digital (Non-resettable) Linear Heat Detecting Cable for both Fire condition and Fault status.
Find out more
Controllers
LDM-519-DIM-28
Digital LHDC may be employed in lengths up to 5km when using the LDM-519-DIM-28 module.
Find out more
Other
Application Fixings
The routing of LHDC shall be chosen to avoid contact or close proximity with any local sources of heat e.g. light fixings, steam pipes etc.
Find out more
Other
End Of Line Terminators
The End of Line unit resistor values are different for analogue and digital cables, and for each type of controller.
Find out more
Other
Floating Roof Storage Tanks
An Automatic Cable Reeler provides the electrical connection between LHDC and control panel.
Find out more
For more information
Please visit our Technical Library
View Technical Library
