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Linear Heat Detection Cable

LHD (Alarm Temperature 240°C)

Application

  • Conveyors/ bearing protection
  • Escalators-moving walkways.
  • Petro- chemical storage tanks, rim seal protection.
  • Cable tunnel/ tray protection
  • Road and rail tunnels
  • Road and rail motor compartments
  • Electrical switch gear & transformers
  • Refrigerated rooms and cold stores.
  • Building exteriors under eaves
  • Motor and pump overheat detection.
  • Dirty and dusty environments
  • Car parks and bulk storage

Product Construction

  • Conductor : Special Alloy Wires
  • Insulation : Temperature Sensitive Polymer
  • Insulation Colour : Black Core with Number Printing (1&2)
  • Outer Sleeve : Protective Fluoropolymer
  • Sleeve Color : White

Technical Data

  • Voltage Rating : 110 V DC
  • Alarm Temperature : 240°C
  • Max. Ambient Temperature : 200°C
  • Min. Operating Temperature : -50°C
  • Min. Installation Temperature : -20°C
  • Capacitance at 1 kHz : 45 pF to 130 pF
  • Inductance : 0.74 μH to 1.3 μH
  • Max. DC Conductor Resistance : 100Ω/km @ 20°C
  • Time to detect small flame : 20 sec (Flame touching)
  • Melting Temperature : 200°C

Features

  • Simple digital switch operation.
  • Fewer false alarms and false suppressant discharge with Confirmed Temperature Initiation (CTI).
  • Continuous sensing along the total length of the elements
  • Detection device works with fire alarm system interface and modules that identify source and temperature of hazard
  • Provides hazard coverage at every point on the cable for maximum protection.
  • Fixed alarm temperature unaffected by changes in ambient temperature.
  • Compatible with switch monitoring units and conventional alarm panels.
  • Suitable for use in Hazardous areas using safety barriers.
  • Chemical & water resistant fluoropolymer outer sleeve
  • Rugged and durable construction
  • Simple maintenance free installation

Part
Number		 Conductor Construction Insulation
Wall Thickness
Nom		 Core
Diameter
Nom		 Outer Sheath
Thickness
Nom		 Cable Max.
Conductor
Resistance
at 20°C
No.
of Cores		 Nominal
Cross-
Section		 No. of
Strands		 Strands
wire
max		 Overall
Diameter
Max.		 Approx.
Cable
Weight
nos. mm2 nos. mm mm mm mm mm kg/km Ω/km
B933A5102 2 0.64 1 0.9 0.2 3.0 0.2 3.5 24 100

Other length as per Customer order.

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