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Linear Heat Detection Cable (LHD)

DIGITAL HEAT DETECTION FOR INDUSTRIAL FIRE PROTECTION

SafeCable Linear Heat Detection (LHD) Cable is a combination of advanced polymer and digital technologies that can detect heat anywhere along its entire length. SafeCable is also compatible with any listed addressable or conventional panel.

The simple and proven technology of digital LHD cable makes it a product of choice for difficult and challenging applications where other technologies struggle to work. With it’s ease of installation and low maintenance it provides a cost effective solution where project expenditure requires to be kept at a minimum.

At the core of SafeCable is a twisted pair of extremely low resistance (.05 ohm/ft. [.164 ohms/m] of twisted cable) tri- metallic conductors, sheathed in new advanced thermal polymers. These polymers are chemically engineered to break down at specific fixed temperatures allowing the twisted conductors to make contact and initiate an alarm at the control panel without any calibration for changes in the ambient temperature. The distance locating option allows the control panel to identify and display the location, in feet or meters from the panel, where the heat source interacted with the detection cable.

The polymer used for the protective outer coating of SafeCable is chemically inert and UV protected. This allows for SafeCable to be used in an extremely wide variety of installations and hazards.

PRODUCT FEATURES
  • Extended Zone Coverage – Supports up to 15,000 linear feet (3,048 m) of SafeCable per zone for expansive area protection.
  • Flexible Installation Spacing – Approved for detector spacing up to 35 ft (10.7 m), reducing installation time and material costs.
  • Ultra-Low Resistance Twisted Pair – .05 ohms/ft (.164 ohms/m) resistance delivers lower impedance than any other linear heat detection wire, enabling longer runs and improved system performance.
  • Cost-Effective Linear Detection – Lower overall cost compared to other types of linear heat detection technologies.
  • Universal Panel Compatibility – Fully compatible with all fire alarm control and releasing panels when used with addressable contact monitor modules.
  • Multiple Fixed Alarm Temperatures – Available in 155°F (68°C), 172°F (78°C), 190°F (88°C), 220°F (105°C), 365°F (185°C), and 455°F (235°C) ratings to match a wide range of applications.
  • Mixed Temperature Zones – Different alarm temperature ratings can be combined on the same zone for tailored hazard protection.
  • Continuous Length Detection – Detects heat events anywhere along the entire cable length, not just at fixed points.
  • Distance Locating Options – Single, multiple, and cross-zoned distance-locating configurations are available for precise event identification.
  • No Full Cable Replacement After Alarm – Only the affected section requires service; complete zone replacement is unnecessary.
  • Reduced Splicing Requirements – Longer standard spool lengths minimize splices, improving reliability and installation efficiency.
  • Custom Length Availability – Factory-supplied custom cable lengths are available to meet exact project requirements.
  • Diameter: 1/8 in (3.2 mm)
  • Weight: Nominal 15 lb per 1,000 ft (6.8 kg per 305 m)
  • Bend Radius: 3 in (76.2 mm)
  • Maximum Voltage Rating: 30 VAC, 42 VDC
  • Resistance: 0.05 ohms/ft (0.164 ohms/m)
  • Temperature Ratings (°F): 155, 172, 190, 220, 365
  • Temperature Ratings (°C): 68, 78, 88, 105, 185
  • PVC: Multipurpose flame retardant outer jacket resistant to common chemicals while maintaining the best flexibility at low temperatures
  • NXT Nylon: An excellent choice for industrial environments that need a second layer of heavy duty abrasion resistance. In addition is has high UV resistance making it excellent for outdoor applications.
  • Polypropylene: The absolute best choice for harsh chemical environments such as chemical plants as it wont react to water, detergents, acids or bases.
  • GuideWire: A stainless steel cable wound around SafeCable used to support SafeCable over long spans where there is nothing to support the cable from. GuideWire can be used on any temperature cable or coating.

SafeCable is ideal for:

  • Aircraft Hangars

  • Archive Storage

  • Bridges

  • Cable Spreading Rooms

  • Cable Trays

  • Conveyors

  • Cooling Towers

  • Elevator Shafts

  • Engine Bays

  • Generators

  • In-Cabinet Applications

  • In-Rack Freezer and Cooler Storage

  • Motors

  • Parking Decks

  • Pumps

  • Switchgear

  • Terminal Rooms

  • Tunnels

  • Warehouse Storage

Request Linear Heat Detection Cable Pricing / Availability

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