Free Phone: 0800 485 990 (NZ)

Cable Testing and Diagnostics

Cable testing and diagnostics provides information about the cable’s global condition (e.g. the cable’s overall insulation system), and will reveal localised problems, such as poor joints and terminations; it will also reveal localised weak spots in the insulation.

Various cable tests are carried out to spot potential failures before they can cause severe outages.

Megger cable test equipment provides access to all of the technology needed to make informed cable management decisions through the different stages of the cable’s life cycle.

Newly laid cables may be tested to reveal any faults arising from transportation or installation

During the life of power cables, older PE/XLPE insulation cables may require testing to assess aging, particularly water-tree growth, which causes sections of the cable to weaken.

Embracing ‘State of the Art’ in MV Cable Testing

LC MV Cable Testing Paper Jun21 1Trevor Lord
Director, LORD Consulting

When assessing what might at first appear to be a “new technology” to our industry, it is reasonable to seek a degree of evidence of its established provenance offshore and in the application to which it is intended to be applied in the ‘local’ context.

When that ‘new technology’ is well established offshore but new to our region or industry, we must consider the question what information is required to address and allay any uncertainties or questions as to the suitability of the technology per se for the intended application and the quality of its said provenance.

Download Full Paper ...


Megger TDS NT

Cable Test and Diagnostic System – PD, VLF CR, DAC

  • Two proven voltage wave shapes in one device
  • Standard compliant VLF cable testing with accompanying PD diagnosis
  • Non-destructive PD diagnosis by means of proven DAC voltage
  • 50 Hz Slope Technology for a direct comparison with the power frequency
Product details...

Megger TDM45 Series

Cable Test and Diagnostic System – PD, VLF Sinus, VLF CR, DAC, Tan Delta

  • Cable testing, cable diagnosis and sheath testing in one device
  • Enables standard compliant high power VLF testing at 0.1 Hz (5 µF @ 40 kVrms)
  • Internal tanDelta measurement with automatic result interpretation
  • Partial discharge diagnosis using VLF Sine wave, Damped AC or 50/60 Hz Slope technology voltages
Product details...

Cable Test Vans

Developed with the individual needs of our customers in mind, the Megger Cable Test Van Systems deliver superior ergonomics, optimum speed, user friendliness, and reliability. Incorporated into this unique test van concept are the requirements and field experiences of the users. The result is a test system that sets new benchmarks in cable fault location.

Product details...