Praetorian Fiber Optic Sensing for Power Cable Monitoring

Brand: Hawk Measurement Systems

The Praetorian Fiber Optic Sensing System can monitor buried and unburied data cables, wires and power transmission lines. Monitoring for wear, damage or corrosion of the cable is extremely difficult and often power failure or data outage is the first sign of a problem.

These cables are typically installed in areas that have multiple uses by various stake holders and in the event of a failure can be logistically difficult and expensive to access for repair.

The Praetorian Fiber Optic Sensing System can be installed either near the power cables or embedded within the power cable itself. It can monitor disturbances, identify manual and machine excavation, vehicle movement, ground condition assessment and detects hotspots.

HAWK’s Fiber Optic Sensing System requires no additional field infrastructure such as power or communication and does not require maintenance or calibration after commissioning.
  • Detection of hot spots
  • Conductor break detection
  • Underground and Above ground Cable Monitoring
  • Ground condition monitoring
  • Detect issues as a distributed sensor rather than a point sensor
  • Requires no additional field infrastructure such as power or communications
  • 24/7 real-time monitoring
  • Low cost per foot
  • Preventative rather than reactive
  • Autonomous detection with low false alarm rate


Sensing Element

  • Fiber Optic Sensing Cable

Number of Channel

  • 1 or 2

Power Supply

  • 110-240 Vac (50/60 Hz), 24 Vdc

Sensing Range

  • Conveyors: Up to 80 kms (50 miles) Per Channel
  • Temperature (Cable): -200° to 800° C (-328° to 1,472° F)
  • Temperature: -250° to 700° C (-418° to 1,292° F)

Operating Temperature

  • Interrogator: 0° to 40° C (32° to 104° F)

Storage Temperature

  • Interrogator: -20° to 60° C (-4° to 140° F)


  • Operating: 10 % to 85 % @ 40° C Non-Condensing
  • Storage: 10 % to 95 % @ 40° C Non-Condensing


  • Modbus Ethernet TCP/IP (Standard), Relay, USB, SCADA

Light Source

  • Laser (Infra Red) Class 1M

Laser Wave Length

  • 1,550.12 nm (Nanometers)

Laser Stability

  • ± 5 pm (Picometers)

Processor Transfer Rate

  • 64 Bit (Ultra High Speed)

  • Mining and Minerals 
  • Utility Tunnels 
  • Transformers 
  • HVAC / HVDC 
  • Underground and Above Ground Power Cables

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