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Early Detection of Fire
and heat hazards
Analogue (resettable) and Digital (non-resettable) cables for early detection of fire and overheating when other forms of detection are not viable

LINEAR HEAT DETECTION CABLES (LHDC)

Simple Installation, High Sensitivity, Early Detection

Honeywell’s Linear Heat Detection Cable (LHDC) is a continuous heat detector that can detect heat (due to fire or other events) at any point along its entire length. The cable is composed of two twisted-shield conductors, insulated with a heat-sensitive polymer, then wrapped with a protective tape and finished with an outer covering.

PRODUCT OFFERINGS

Available in both Analogue and Digital Forms
Engineered to provide reliable fire safety regardless of application or use case, Honeywell’s LHDCs can help detect fires and overheating before there is any damage to equipment or property.
  • Analogue/Resettable LHDC

    Honeywell’s Analogue LHDC consists of insulators whose resistance varies proportionally to changes in temperature. This cable is self-restorable after the fire event as long as temperature does not exceed its specified resettable temperature limit of 120°C.

    • Construction: overall insulated, twisted pair of tri-metallic cores
    • Insulation: 1kV tested protective outer coat
    • Multiple alarm temperature ratings
    • Maximum zone length: 200 metres
    • Compatible with any conventional or intelligent fire alarm panel
    • Smoothing algorithms provide false alarm immunity
    • Approvals: CE Marked, RoHS Compliant, FM, UL
  • Digital/Non-resettable LHDC

    The Digital LHDC from Honeywell is a fixed-temperature, non-resettable cable from Honeywell, the worldwide leader in fire safety solutions. Each cable consists of low-resistance, twisted-pair, tri-metallic conductors, sheathed in thermal polymers that are chemically engineered to break down at specific fixed temperatures. This property allows the twisted conductors to make contact and initiate alarms at the control panel without the need to calibrate for ambient temperature changes. This UL/FM approved cable is installed in conjunction with an EOL device for continuous monitoring. System monitoring through an associated electronic interface unit provides fault indication of open and short circuit conditions on the sensor cable.

    • Construction: overall insulated, twisted pair of tri-metallic cores
    • Insulation: 1kV tested protective outer coat
    • Multiple alarm temperature ratings
    • Maximum zone length: 3000 metres
    • Compatible with any conventional or intelligent fire alarm panel
    • Smoothing algorithms provide false alarm immunity
    • Approvals: CE Marked, RoHS Compliant, FM, UL
One product, many applications
Commercial Buildings
Tunnels
Conveyer Systems
Factories
Car Parking
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