LIRA® Technology
Every cable has an electrical fingerprint.
LIRA® reads how it changes.
LIRA® (Line Impedance Resonance Analysis) is the field-proven technology behind Wirescan’s Cable Health Intelligence approach. It uses a low-voltage broadband signal and treats the cable as a transmission line, creating an electrical fingerprint that can reveal information about its condition.
- LIRA® One Diagnostic Assessment
- LIRA® Live Continuous Monitoring
- LIRA® Hub Digital Intelligence Platform
Two forms of insight
See both the local and the bigger picture
Changes in a cable’s electrical fingerprint can provide two important forms of insight. Together, they give teams a more complete understanding of what may be happening inside an asset.
Local insight
Where something has changed
Helps identify faults, joints, damage, water ingress, terminations and other condition changes.
Global insight
How the whole cable is ageing
Provides evidence of insulation ageing and broader cable condition.
Non-destructive
Why low voltage matters
LIRA® is non-destructive and uses a low-voltage approach, enabling teams to assess cable condition without deliberately applying the high electrical stresses associated with some alternative test methods.
The result is condition evidence that can help teams move from uncertainty towards a clearer repair, monitor or replace decision.
The LIRA® system
One technology. Three connected applications.
The same electrical fingerprint underpins diagnostic assessment, continuous monitoring and digital interpretation, so evidence gathered at one stage remains useful at the next.
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LIRA® One
Diagnostic Assessment
Reveal condition in de-energised cables.
Explore LIRA® One -
LIRA® Live
Continuous Monitoring
Track condition change in suitable energised assets.
Explore LIRA® Live -
LIRA® Hub
Digital Intelligence Platform
Turn measurements, monitoring and analysis into clearer intelligence.
Explore LIRA® Hub
Track record
Proven in the field
More than two decades of LIRA® diagnostics across some of the most demanding cable environments in the world.
of field-proven LIRA® diagnostics
with operators using Wirescan technology
cable-length fault location accuracy
de-energised cable diagnostic capability
LIRA® compared
Why traditional tests can miss the bigger cable story
No single cable testing or monitoring technology is designed to answer every question. The important question isn’t simply which technology is “best”. It’s what you need to understand about the cable, and whether your current approach gives you enough evidence to make the right decision.
| Method | What it can help identify | Considerations |
|---|---|---|
| LIRA® | Local and global cable condition, faults, condition change and ageing evidence | Low-voltage, non-destructive and retrofit |
| VLF / Hipot | Electrical withstand | Can place additional stress on ageing cables |
| TDR | Fault location | Can be limited on long runs and in assessing global degradation |
| Partial Discharge | PD activity | May not identify defects that do not generate PD |
| Fibre optic sensing | Temperature and strain | Typically requires embedded fibre and does not directly assess insulation ageing |
| Sheath-current monitoring | Changes that may provide a warning signal | Can indicate something has changed without necessarily explaining what |
The difference
Where LIRA® adds value
LIRA® combines a low-voltage, non-destructive approach with the ability to generate both local and global condition evidence.
Because measurements can also be trended, it provides a way to move from a one-off test towards a developing picture of cable health.
Get in touch
Talk to Wirescan about LIRA® Technology
Ready to reveal hidden cable condition?
Let’s talk Cable Health Intelligence
Wirescan helps teams understand what is happening inside critical cable assets, so they can make clearer decisions before risk becomes failure.
- Diagnostic assessment for de-energised cables
- Continuous monitoring for energised assets
- Digital platform for cable health intelligence