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Digital LHD Cable — 88° PVC Sheath & Stainless Steel Braid


Operation 
The AD range of digital LHD cables contains a pair of twisted, low resistance, tri-metallic conductors sheathed with advanced temperature sensitive polymers. The cable operates by softening the insulation of the conductors, the tension of the twisted conductors then causes the two cores to fuse together. The sensor cable provides a simple switch operation which when used with a combination of end-of-line (EOL) monitoring and alarm trigger resistors can signal an alarm to any fire monitoring equipment through any monitored input, ie. conventional detection zone or addressable interface unit. 

Location Control Unit 
Additional to the LHD sensor cable, an optional digital location control unit which monitors the sensor cable and can identify along the length of the sensor cable where an alarm condition has occurred, is also available. 

Cable fixings for all applications
A range of ‘edge’, ‘A’, ‘P’ and ‘T’ clips allow the cable to be properly installed. The clips provide heat insulation as well as holding the cable at the correct distance from cable trays, steel works, ceilings and walls.
  • Up to 3,000 m per zone
  • Detection along total cable length 
  • Optional extrusions for different environments 
  • Simple maintenance free installation
  • Suitable for use in hazardous areas
  • Mechanical Outside diameter (Nominal): 4.1 mm ± 0.12 mm
  • No of cores: 2
  • Colour: Silver
  • Weight: 2.92 kg, 14.6 kg
  • Electrical:
    Operating voltage: 0 to 30 VAC, 0 to 42 VDC
    Conductor resistance: ~100 ohms/km per leg (30.4 ohms/kft)
    Capacitance: 88 to 150 pF/m
    Inductance: 540 to 1050 nH/m
  • Environmental:
    Ambient temperature (max): 45°C
    Relative humidity: 0% to 100%
  • cUL/UL 521 approved
  • FM approved (Class 3210) 
  • Up to 3,000 m per zone
  • Detection along total cable length 
  • Optional extrusions for different environments 
  • Simple maintenance free installation
  • Suitable for use in hazardous areas
  • Mechanical Outside diameter (Nominal): 4.1 mm ± 0.12 mm
  • No of cores: 2
  • Colour: Silver
  • Weight: 2.92 kg, 14.6 kg
  • Electrical:
    Operating voltage: 0 to 30 VAC, 0 to 42 VDC
    Conductor resistance: ~100 ohms/km per leg (30.4 ohms/kft)
    Capacitance: 88 to 150 pF/m
    Inductance: 540 to 1050 nH/m
  • Environmental:
    Ambient temperature (max): 45°C
    Relative humidity: 0% to 100%
  • cUL/UL 521 approved
  • FM approved (Class 3210)