A valid certificat conformité foudre in France is not a single document. It’s a package: the Analyse du Risque Foudre or Étude Technique, a Dossier des Ouvrages Exécutés with component-level proof, and a standalone Notice de vérification et de maintenance, all produced or checked by a QUALIFOUDRE-certified company under INERIS’s framework. Skip any one piece and an inspector can flag the site as non-compliant, even with a physically sound lightning protection system in place.

TL;DR:

  • The certification package must include an risk analysis, component proof, and a standalone maintenance notice; skipping any part risks non-compliance detection.
  • Certification relies on a chain of validated companies and personnel, with INERIS overseeing recurring audits and adherence to strict qualification standards.
  • Inspector checks focus on manufacturer declarations, component traceability, and proper documentation, especially the standalone notice and component conformity evidence.
  • Completing all documentation, including initial risk assessment, technical design, component declarations, and verification reports, streamlines inspection readiness and compliance.
  • Ongoing verification typically occurs annually or biennially, with strict records of repairs, after-impact inspections, and technical updates essential for sustained compliance.
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Table of Contents

What French Regulations and Standards Actually Require

The legal backbone sits in two places: the Arrêté du 15 janvier 2008 and the related Arrêté of October 4, 2010, both of which set obligations for lightning protection on classified industrial sites (ICPE). These texts don’t just require a lightning rod on the roof. They require that technical studies and verification documentation be available for inspection at any time, and that the study match the site’s actual hazard profile, not a generic template.

On top of the regulatory layer sits the technical standard: NF EN 62305, the French adoption of IEC 62305. Each part does a different job.

  • IEC 62305-2 governs the risk assessment itself, the quantitative math behind the ARF that determines whether protection is even required and at what level.
  • IEC 62305-3 covers physical design: rolling sphere method, down-conductor spacing, earthing network geometry.
  • IEC 62305-4 addresses LEMP protection and surge protective devices for sensitive electronic systems inside the structure.

A third layer, easy to overlook, is the component standard NF EN IEC 62561. It sets test and marking requirements for lightning protection components, sometimes called CSPF. If a bracket, connector, or air terminal on your roof can’t be traced back to a declaration referencing this standard, your DOE has a hole in it, and that hole is exactly what inspectors look for first. Indelec’s overview of applicable standards is a useful reference point when briefing a maintenance team on why paperwork matters as much as hardware.

Who Actually Issues and Verifies These Certificates

No single government office stamps a “certificat conformité foudre.” Instead, France relies on a certification and verification chain built around one organization.

  • QUALIFOUDRE is the certification scheme that qualifies both companies and individual technicians to perform lightning protection studies, installation, and verification work.
  • INERIS manages QUALIFOUDRE, setting the certification criteria for companies and personnel and auditing them against those criteria on a recurring basis.
  • Personnel are graded N1 through N4, roughly corresponding to installation, verification, and design competence, and each level demands specific training prerequisites plus refresher certification every three years.
  • Recognized verifiers may also perform visual checks under narrower conditions, but that recognition has real limits: article 17 of the Arrêté restricts what a non-QUALIFOUDRE-certified person can sign off on, particularly for complete or after-impact verifications.

This chain matters because it creates traceability. A certified company staffs the job with certified people, and INERIS’s framework ties company certification directly to personnel qualification, so an inspector checking your file can trace every signature back to a recognized credential rather than a self-issued attestation.

The Documents and Component Evidence Inspectors Actually Check

The ARF, or Analyse du Risque Foudre, quantifies the probability and consequences of a lightning strike on your specific site using the IEC 62305-2 risk equations. It’s mandatory whenever regulation, most commonly ICPE status, requires a demonstrated risk basis before any protection design begins. The Étude Technique that follows translates that risk figure into an actual protection level and equipment specification.

The DOE, or Dossier des Ouvrages Exécutés, is where component-level proof lives: manufacturer declarations of conformity, product datasheets, and catalog extracts showing each part is marked to NF EN IEC 62561 where applicable. INERIS’s own guidance is explicit that these declarations are not optional paperwork; without them, the component acceptance criteria simply aren’t met, regardless of how the installation looks physically.

The Notice de vérification et de maintenance is the piece most sites get wrong. INERIS’s FAQ states plainly that this document must be standalone, not folded into the Étude Technique or buried inside a general maintenance manual. It has to specify verification methods and conformity criteria on its own terms.

For an inspection, the minimum file to have ready includes:

  1. The ARF or documented justification for why one wasn’t required.
  2. The Étude Technique specifying protection level and equipment.
  3. The complete DOE with component declarations and datasheets.
  4. The standalone Notice de vérification et de maintenance.
  5. The most recent verification report and any after-impact records.

Pro Tip:Keep a single physical or digital binder per site with these five items tabbed separately. Inspectors move faster, and faster inspections mean fewer follow-up visits.

How to Get From Zero to a Compliant, Inspection-Ready Site

Facility teams that treat this as one project instead of five disconnected tasks get through certification faster and with fewer callbacks.

  1. Commission the ARF. Hire a QUALIFOUDRE-certified company to run the risk analysis against IEC 62305-2 criteria. This step alone determines everything downstream, so don’t skip it even if a previous owner claims the site was “already protected.”
  2. Produce the Étude Technique. The same or a coordinated provider converts the ARF’s risk figure into a concrete design: protection level, air terminal placement, earthing network, surge protection needs.
  3. Specify and procure compliant components. Every lightning rod, down conductor, and connector should trace to a manufacturer declaration referencing NF EN IEC 62561. Buying generic hardware here creates DOE gaps later.
  4. Install with DOE traceability built in from day one. Don’t wait until the job is finished to assemble declarations. Collect them as components go in; retrofitting a DOE after installation is where most delays happen.
  5. Schedule the initial verification. A QUALIFOUDRE-certified verifier checks the completed installation against the Étude Technique and issues the first verification report.
  6. Receive the report and the standalone Notice. Confirm the Notice is delivered as its own document, not appended to another file, before signing off on the project as complete.

At each step, the deliverable you should demand in writing is different: a risk report at step 1, a technical design at step 2, declarations at step 3 and 4, and a signed verification report plus Notice at steps 5 and 6. Retain everything, because insurers and inspectors both request these records, often years apart. Indelec’s risk assessment, installation, and maintenance services cover this entire sequence under one coordinated process rather than passing the file between separate contractors at each stage.

Verification Schedules and What Keeps a Site Compliant Year to Year

A conformity file isn’t a one-time achievement. Three verification types apply: visual checks, complete verification, and after-impact verification following a confirmed strike.

  • Visual verification is commonly run annually, catching corrosion, loose connections, and physical damage before they become failures.
  • Complete verification typically runs on a two-year cycle for most sites, though ICPE status or insurer contracts can shorten that interval.
  • After-impact verification follows any confirmed or suspected strike, and timely reporting matters. Waiting months to document a strike undermines the credibility of the whole file.

Insurance requirements often push these intervals tighter than the regulatory minimum. Indelec has written specifically about how insurers apply their own two-year rule on ICPE sites, independent of what the Arrêté itself mandates.

Earthing resistance is a common technical checkpoint during these verifications. Industry risk tools built on IEC 62305 commonly reference a target of 10 ohms or less for many earth terminations, though the specific figure depends on soil conditions and system design. Every verification, of any type, should update the DOE with repair logs and be filed alongside the previous report rather than replacing it. Inspectors and insurers alike want the history, not just the latest snapshot.

Technician measuring industrial earthing resistance

Nine Reasons Conformity Claims Get Rejected

Most rejections trace back to a handful of repeat offenders, not exotic technical failures.

  • A missing standalone Notice de vérification et de maintenance, or one folded into another document.
  • An incomplete DOE with no manufacturer declarations for key components.
  • Components installed without traceable NF EN IEC 62561 conformity evidence.
  • No ARF on file where the site’s ICPE status or other regulation required one.
  • An Étude Technique that skips existing protections already on site or lists vague conformity criteria instead of specific ones.
  • No documented after-strike inspection following a known event.
  • Repair records that exist informally, in emails or memory, but never made it into the DOE.
  • Personnel whose QUALIFOUDRE certification lapsed past the three-year recyclage window.
  • A verification report dated years past its expected interval with no explanation on file.

Pro Tip:Before any formal inspection, run this list against your own file as a five-minute audit. Most sites find at least one gap, and finding it yourself beats an inspector finding it for you.

What Fifteen Years of Certification Cycles Teach You About Compliance

What Fifteen Years of Certification Cycles Teach You About Compliance — overview diagram

Most conformity failures Indelec encounters on industrial sites aren’t technical. The hardware is usually fine. What breaks down is document control: an ARF commissioned by one contractor, an installation done by another, and a DOE nobody assembled properly in between. A full-lifecycle provider closes that gap by coordinating the Étude Technique and installation under one contract, so component traceability gets built in rather than reconstructed later under deadline pressure.

Indelec has operated in lightning protection since 1955, running ARF studies, installation, and maintenance contracts across industrial and infrastructure sites. That history shapes a specific bias: compliance documentation is a design output, not paperwork bolted on afterward. A site’s R&D-informed protection design and its DOE should be produced by the same coordinated process, because that’s when component declarations actually get captured instead of chased down months later.

— INDELEC

Get Your Site Inspection-Ready With One Coordinated Provider

Indelec is the alternative to piecing together your conformity file from separate contractors, one for the risk study, another for installation, a third for verification. That fragmented approach is exactly where DOE gaps and missing Notices come from. Indelec runs the risk analysis, Étude Technique, installation, and verification and maintenance under one coordinated process, so component declarations get captured at installation instead of chased down before an inspection.

Indelec

Some providers build their practice around the full lifecycle: ARF and ET, compliant lightning rods and grounding systems sourced with traceable declarations, installation, and ongoing verification and maintenance contracts. That range means ideally one point of contact carries the file from risk study to signed verification report rather than multiple contractors each holding a piece of it. If your site’s paperwork has gaps, or you’re not sure it does, start with a site audit through Indelec’s services page to find out before an inspector does.

Sources

FAQ

Is a lightning risk study mandatory in France?

Yes, for sites where regulation such as ICPE status requires it. The Arrêté du 15 janvier 2008 requires that a risk-based study justify the protection level chosen, and inspectors can request that documentation at any time.

Is a surge protective device mandatory according to Consuel?

Consuel checks compliance with electrical installation standards at the point of connection, not with the lightning protection Arrêtés specifically. Surge protection requirements for a given site come from the risk assessment and the IEC 62305-4 framework, not from a blanket Consuel rule.

Is a lightning protection circuit breaker mandatory?

There is no single “lightning circuit breaker” requirement. What matters is whether the Étude Technique specifies surge protective devices based on the site’s risk profile, and those devices must be installed and documented according to NF EN IEC 62561 component standards.

What is the 50 centimeter rule for surge protectors?

The guideline refers to the recommended maximum cable length between a surge protective device and the equipment it protects, minimizing induced voltage on the unprotected cable run. It’s a design detail addressed in the Étude Technique rather than a standalone legal threshold.

What does Indelec charge for a lightning risk analysis?

Pricing for the Analyse du Risque Foudre and Étude Technique depends on site size and complexity, so current rates are available directly through Indelec’s services page.