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Wind turbine lightning protection system testing and blade receptor inspection
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Lightning Protection

LPS testing, receptor and down-conductor checks, continuity and resistance testing and strike damage repair, matched to independent blade specialists across Australia.

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Lightning Protection Scope

A blade is the tallest, most exposed part of a turbine, so a lightning strike wind turbine event is a matter of when, not if. The job of the lightning protection system (LPS) is to capture that strike at the receptor and carry it safely to earth. When the LPS is sound a strike is a non-event; when it has degraded the same strike can split a blade shell.

We match owners and asset managers to independent blade and lightning protection specialists who test, repair and upgrade the whole path, receptors, down-conductors, bonding and earthing. Tell us your platform and fleet size and we match the right provider.

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  • Lightning damage repair & reinstatement
  • Lightning protection system (LPS) testing
  • Receptor inspection & replacement
  • Down-conductor continuity checks
  • Continuity & resistance testing
  • Lightning card & counter reading
  • Earthing & bonding verification
  • Bearing & main shaft strike checks
  • Blade tip & surface damage survey
  • IEC 61400-24 compliance review
  • Post-strike emergency assessment
  • Protection upgrades & retrofits

Request Lightning Protection Quotes

Tell us your fleet, platform and whether you need LPS testing, post-strike assessment or damage repair. We match you to independent specialists.

Your enquiry is sent to vetted service partners who may contact you directly. We never charge owners or asset managers.

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In the field

Lightning Protection Work Samples

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Why lightning protection decides a blade's fate

Every tall structure attracts lightning, but a wind turbine blade sweeps a huge volume of sky and does it thousands of times an hour. A sound lightning protection system turns a strike into a non-event; a degraded one turns the same strike into a blown blade shell.

A lightning strike wind turbine event is routine across the exposed Australian fleet, from the tablelands of New South Wales to the ranges of Tasmania. The LPS is designed to capture the strike at a metal receptor near the blade tip and carry it down an internal conductor to the hub, through the bearings and main shaft to the nacelle, down the tower and into the earthing and bonding network. When any link in that path fails, the current finds its own way out, usually straight through the laminate.

LPS testing and inspection

Lightning protection system testing starts with a close visual survey of each blade's receptors, tip and surface for pitting, burn marks and delamination, best done through a thorough inspection using drone or rope access. From there technicians measure continuity and resistance from every receptor, through the down-conductor, to the hub and earth, confirming the path is intact and within the design and IEC 61400-24 limits.

Receptors, down-conductors and lightning cards

Receptor and down-conductor checks are the heart of the job. A loose receptor stud, a corroded bond or a broken conductor strand all raise resistance and push current into the laminate. Reading any fitted lightning cards and strike counters tells the asset team which turbines have taken the hardest hits, so inspection and repair can be prioritised before a damaged path causes catastrophic failure.

Earthing, bonding and strike damage

The path does not end at the hub. Earthing and bonding across the main bearing, shaft, nacelle and tower and foundation must carry the strike to ground without arcing across a bearing race. A strike that finds a poor path can pit bearings and weld pitch and yaw components, so post-strike checks cover more than the blade. Where damage is found, the providers we match reinstate the laminate and protection and can pair the work with leading edge protection and the wider blade repair programme. For the engineering behind it, see our guide to wind turbine blades.

Wind Turbine Services is a sourcing and comparison service and does not perform monitoring itself. Enquiries are passed to independent service partners who contact you directly. There is no cost or obligation to owners and asset managers.

Frequently asked questions

What happens when lightning strikes a wind turbine blade?
A lightning strike wind turbine event drives a huge current through the blade to a metal receptor near the tip, then down a conductor inside the blade to the hub, nacelle, tower and earthing system. When the lightning protection system works, the energy is carried safely to ground. When a receptor, bond or down-conductor has degraded, the current can arc through the laminate, superheat trapped moisture and blow the blade shell apart.
How do you test a wind turbine lightning protection system?
Testing combines a visual inspection of receptors, tip and surface for burn marks with electrical continuity and resistance measurements from each receptor through the down-conductor to the hub and earth. Technicians read any fitted lightning event counters or strike cards, check bonding across bearings and the main shaft, and verify the earthing and bonding network meets the design and IEC 61400-24 expectations.
What is a lightning card and why does it matter?
A lightning card, or strike counter, records how many strikes a turbine has taken and often an indication of peak current. Reading these cards during inspection tells the asset team which turbines have been hit hardest, so they can be prioritised for receptor and down-conductor checks before a damaged path causes catastrophic blade failure.
Can lightning damage more than the blade?
Yes. A strike that finds a poor path can pit bearing races, damage the main shaft, weld pitch and yaw bearings, and harm electrical and control systems. That is why the providers we match check continuity through the whole path, not just the blade, and inspect bearings and earthing after a significant strike.
Who carries out lightning protection work?
Independent blade and lightning protection specialists, rope-access teams and O&M providers with the right test instruments and GWO tickets. Wind Turbine Services is a sourcing service: we route your enquiry to vetted providers who cover your platform and state, and they contact you directly.
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