A third-party lightning audit is approaching and you’re wondering how to be ready? Indeed, these audits — mandatory in many internationally regulated industrial sectors (ICPE, ERP, wind farms, data centers) — can be daunting without methodical preparation.
Consequently, this article details what an external auditor actually verifies, the points that cause files to fail, and how LPS Manager allows you to arrive on the day with impeccable IEC 62305 compliance.
What is a third-party lightning audit?
Unlike internal inspections, the third-party audit is carried out by an independent body: approved inspection bureau, certified auditor, or regulatory inspector. It aims to verify that the lightning protection installation complies with applicable normative requirements.
These audits occur in particular in the following contexts:
- ICPE (Classified Installations for Environmental Protection): according to sector orders
- ERP (Public Buildings): verification by approved body
- Wind and photovoltaic parks: requirement of insurers and network operators
- ATEX sites (explosive atmospheres): strict international regulations
- ISO 45001 renewal audit or similar including natural hazard management
Thus, depending on countries and sectors, the periodicity varies between 1 and 4 years. However, the substantive requirements remain aligned with the IEC 62305 series, the international reference standard.
The 5 points the auditor will systematically verify
First, the auditor will request your execution file. This document, compiled at the end of installation, contains the protection level chosen, the type of lightning rod, the routing of downleads, earth resistance values and equipotential bonding carried out.
In summary, here are the 5 essential verifications:
- Complete execution file: plans, equipment characteristics, values measured at commissioning
- History of periodic inspections: annual visual and complete inspections every 2 years, with timestamped reports
- Recent earth resistance measurements: ≤ 10 Ω per electrode, comparison with initial value
- Post-impact inspections: proof that each detected impact triggered an inspection
- Equipment certification: ΔT test reports for SPDs, CE marking, NF EN 50164 compliance
Consequently, scattered paper files between different parties often constitute the main weak point during these audits.
The most common errors that cause audit failure
Based on field feedback, several recurring problems are identified. First and foremost, missing or incomplete inspection reports: date, inspector identity, measured values, corrective measures.
Moreover, the absence of post-impact inspection is frequently penalized. Indeed, IEC 62305-3 and NF C 17-102 standards require inspection after each detected impact on the installation. However, without a connected detection system, this proof is difficult to provide.
Among other common errors:
- Execution file not found during audit (contractor change, archive loss)
- Earth resistance measurements not carried out for more than 2 years
- Building extensions or modifications not accounted for in existing protection
- Equipotential bonding not documented
- Maintenance register not kept up to date
Nevertheless, all these errors are avoidable with rigorous digital management.
How LPS Manager transforms audit preparation
LPS Manager is a SaaS platform for lightning compliance management, compatible with all equipment brands. It is intended for installers, engineering firms and site managers.
Concretely, LPS Manager allows you to:
- Centralize all files in a single digital space: execution file, reports, measurements, photos
- Automate periodic inspection alerts: no more missed regulatory deadlines
- Generate reports instantly: inspection reports compliant with IEC 62305, shareable as PDF
- Track each impact via connection to the Contact@ir® system: automatic proof of post-impact inspection
- Manage multiple sites simultaneously: dashboard with compliance score per installation
Thus, on audit day, you have a complete, timestamped history that can be exported in seconds. Moreover, the auditor can access data directly from the shared interface, which greatly simplifies the process.
The Contact@ir® connection: the key to post-impact compliance
One of the most delicate points to document is inspection after impact. However, without automatic detection, how can you prove that an impact occurred and that an inspection was carried out?
This is precisely why LPS France developed the Contact@ir® system, compatible with LPS Manager:
- An impact is detected by the connected lightning rod
- LPS Manager receives an automatic notification
- A regulatory inspection is triggered in the file
- The report is generated and archived with timestamping
Ultimately, this automatic traceability chain is a decisive argument before a third-party auditor. To learn more about compatible LPS France products, consult the Contact@ir® system on lpsfr.com.
Be ready on day one: the checklist
In conclusion, here are the actions to implement before any third-party lightning audit:
- ✅ Complete and up-to-date execution file in LPS Manager
- ✅ Visual inspection reports (annual) and complete inspections (2 years) archived
- ✅ Recent earth resistance measurements with initial comparison
- ✅ Post-impact inspections traced and documented
- ✅ ΔT test certificates and CE markings accessible
- ✅ Maintenance register up to date
Therefore, with LPS Manager, each of these elements is available at all times, on mobile and desktop, without searching through paper archives.
Ready to prepare your next audit with peace of mind? Discover LPS Manager and create your first file for free.
To learn more, discover LPS Manager pricing and download the app.
