NF C 17-102 Lightning Protection Management — LPS Manager

Lightning protection engineering encompasses two complementary technology families: conventional systems governed by IEC 62305, and active air terminal systems (ESE — Early Streamer Emission) covered by NF C 17-102. LPS Manager supports both, enabling engineers and maintenance companies to manage all types of installations within a single platform.

What is NF C 17-102?

NF C 17-102 is the French standard governing lightning protection systems that use Active Air Terminals (AAT), also known as Paratonnerres à Dispositif d’Amorçage (PDA) in French, or ESE (Early Streamer Emission) devices internationally. Specifically, this standard defines the design, installation, and maintenance requirements for this technology.

Importantly, NF C 17-102 and IEC 62305 are not competing standards — they cover different technologies. NF C 17-102 addresses PDA/ESE air terminals; IEC 62305 addresses conventional systems (simple rods, mesh conductors, Faraday cages). Both coexist and may even be found on the same large site.

IEC 62305 vs NF C 17-102 — Complementary, Not Competing

A common misconception is that choosing NF C 17-102 means rejecting IEC 62305, or vice versa. In reality, the two standards address different air-termination technologies.

Therefore, LPS Manager was designed from the outset to handle both technology families without distinction.

Managing PDA/ESE Installations in LPS Manager

LPS Manager provides a dedicated module for NF C 17-102 installations. Consequently, field technicians and back-office teams can manage the entire PDA lifecycle from a single tool.

NF C 17-102 Inspection Protocol — Specific Verification Steps

PDA inspections follow a specific protocol distinct from conventional IEC 62305 system checks. In particular, the functionality of the triggering device (dispositif d’amorçage) must be verified.

Furthermore, LPS Manager records every inspection step and generates a compliant maintenance report that satisfies NF C 17-102 documentation requirements.

Reception Report and Annual Maintenance

NF C 17-102 requires a formal reception report (procès-verbal de réception) upon installation completion. LPS Manager generates this document automatically from the installation data entered by the technician.

Linking PDA Products from lpsfr.com

For professionals sourcing PDA components and accessories, lpsfr.com offers a range of lightning protection equipment. Down-conductors and earth electrodes from the accessories catalogue are fully compatible with NF C 17-102 installations. The Strike Radar detection service complements PDA installations by providing post-strike notifications.

Frequently Asked Questions

What is NF C 17-102?

NF C 17-102 is the French standard for lightning protection systems using Active Air Terminals (AAT/ESE/PDA). It defines design, installation, and maintenance requirements for this specific technology, including protection radius calculation and annual inspection protocols.

Is NF C 17-102 compatible with IEC 62305?

Yes. The two standards cover different air-termination technologies and can coexist on the same site. Down-conductors and earth-termination systems follow IEC 62305-3 requirements regardless of whether the air terminal is a PDA (NF C 17-102) or a conventional rod (IEC 62305).

How does LPS Manager handle PDA inspections?

LPS Manager includes a dedicated inspection module for NF C 17-102 installations. Technicians follow a guided checklist specific to PDA systems, record earth resistance measurements, test the triggering device functionality, and generate a compliant maintenance report — all from the mobile app.

What is the protection radius of a PDA under NF C 17-102?

The protection radius Rp of a PDA is calculated using the formula: Rp = √(h(2D−h) + ΔL(2D+ΔL)), where h is the height of the PDA tip above the structure, D is the rolling sphere radius for the applicable protection level, and ΔL = v × ΔT (with v = 1 m/µs and ΔT the advance time of the device in µs). LPS Manager stores all these parameters in the installation file.

How often must a PDA be inspected per NF C 17-102?

NF C 17-102 requires annual maintenance of PDA installations. In addition, inspection after any recorded lightning strike is strongly recommended. LPS Manager sends automatic reminders when the annual inspection deadline approaches.

Can LPS Manager manage both NF C 17-102 and IEC 62305 systems on the same site?

Yes. LPS Manager is designed to handle mixed installations. A single site can contain PDA-protected buildings (NF C 17-102) and conventional mesh- or rod-protected structures (IEC 62305), all managed within the same project file.

Is LPS Manager suitable for installers who work in multiple countries?

Absolutely. LPS Manager supports multi-language and multi-country operations. The platform is available in English, French, Spanish, and Portuguese, making it suitable for international lightning protection companies working across different regulatory environments.