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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.
Upcoming Event
Attending the UK’s No.1 Fire Safety Event in 2023
Patol will be an exhibitor at the Fire Safety Event 2023 in Birmingham on Stand 3a/J58. As the UK’s No.1 Fire Safety Event, it is dedicated to supporting industry practitioners and professionals in achieving the highest standards of fire safety management.
Patol will be showcasing our Flagship 5000 series Atex IECEx Infra-red Heat/flame transit sensors for moving heat or fire conditions on conveyors. Our EN54-28 approved Digital non-resettable and our Analogue resettable Linear Heat Detection cables, c/w distance location modules that pinpoint heat or fire condition within a Metre. Patol’s Securiton Aspirating smoke detection with heated sample points for freezer applications, Low Dba for Libraries/art galleries and powerful fan for large warehouses. The ADW line type detection EN54-22 approved ROR resettable detector. Thermal cameras c/w vehicle discrimination for recycling/EFW plants and our EN54-22 FibreSense Linear heat detection system for tunnel and infrastructure detection.
Products
Cable
Analogue Linear Heat Detection Cable (LHDC)
The Patol Analogue Linear Heat Detection Cable (LHDC) is designed to provide early detection of fire and overheating.
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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.
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Controllers
LDM-519-DIM-28
Digital LHDC may be employed in lengths up to 5km when using the LDM-519-DIM-28 module.
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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.
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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.
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Other
Floating Roof Storage Tanks
An Automatic Cable Reeler provides the electrical connection between LHDC and control panel.
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For more information
Please visit our Technical Library
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