LIRA Cable Testing: Prevent Costly HV Cable Failures

Navigation

Do you Want
to learn more?

As a grid utility leader or EPC, your mission is clear: deliver uninterrupted power while maximising asset longevity and minimising risks. But in a world of harsh environments and ageing infrastructure, high-voltage cable reliability is under constant threat.

Why LIRA Cable Testing Matters

Cable degradation often goes unnoticed—until it leads to outages, delays, or expensive emergency repairs. Moisture ingress, physical impacts, temperature swings, and insulation breakdown are common culprits. Traditional cable testing methods are often invasive and disruptive, requiring full shutdowns or risky energisation.

That’s where LIRA cable testing changes the game.

With a proven track record in high-voltage solutions—from cable termination and jointing to grid connections—Reynard now offers LIRA cable testing, a non-destructive, low-voltage diagnostic solution that brings peace of mind to your operations. Our 320+ certified technicians are equipped to deploy LIRA across both onshore and offshore assets, helping you detect faults before they cause damage.

3 Simple Steps to Reliable Cable Health

1. Assess On-Site, Safely

Our team uses LIRA’s 5V signal to scan your cables—quickly, safely, and without disrupting service.

2. Analyze Deeply

We deliver a comprehensive report on overall cable health and pinpoint any localised faults, such as moisture ingress or insulation degradation.

3. Act Proactively

Bundle our repair or jointing services to resolve problems early and extend cable life well beyond 40–50 years.

Take Action Today

Don’t wait for an outage to force your hand. Schedule your LIRA cable testing pilot and ensure the resilience of your energy infrastructure. Contact us via our contact page to get started.

What Happens If You Ignore Cable Degradation?

Small faults can quickly turn into major failures—causing downtime, safety risks, emergency costs, and regulatory scrutiny. LIRA cable testing helps you stay ahead of the curve by identifying problems long before they escalate.

What Is LIRA?

Developed by Wirescan AS in 2004 for the nuclear industry, LIRA (Line Impedance Resonance Analysis) is a powerful diagnostic tool for high-voltage cables. It uses broadband impedance spectroscopy to detect changes in cable properties caused by degradation—without energising the cable.

How LIRA Works

LIRA treats the cable as a transmission line, scanning for impedance anomalies across a wide frequency range. It identifies:

  • Moisture ingress
  • Mechanical damage
  • Insulation wear
  • General degradation

It outputs both global cable health status and precise fault locations, helping you take decisive action.

Stay in Control with Reynard

Since 2011, Reynard High Voltage Solutions has been the trusted partner for reliable grid operations. With LIRA cable testing, you can now protect your assets without disruption—and build a more sustainable, resilient future.

Share this article

More articles

Career
opportunities

High-Voltage
Jointer

High-Voltage
Training

CONTACT ME

I am
reynard

Step 1 of 3
DOWNLOAD BROCHURE
Step 1 of 3