The PREVECTRON® lightning conductor is an INDELEC world patent, registered in 1986. The remarkable performance of the PREVECTRON® system is due to INDELEC’s threefold strategy to carry out:

- continuous research of the lightning phenomenology
- extensive product development
- performance validation and continuous follow-up of the PREVECTRON® systems’ good behaviour, by conducting real lighting tests.

The PREVECTRON® 2 E.S.E. lightning conductor
PREVECTRON®2 is different form the simple rod in that it artificially creates an ionisation around its tip. When a lightning discharge becomes imminent, PREVECTRON®2 is the first to react, ahead of any neighbouring tips, thus ensuring a protection area far superior to that of the single rod.


Laboratory tests: measuring effectiveness
The French standard NF C17–102 states that all lightning conductors with an early streamer emission (E.S.E.) must be subject to testing in high-voltage laboratories, in order to determine the gain in triggering time as compared to a single rod. The value obtained ∆T is the average for a series of 100 discharges, weighted by a security coefficient of 35%. Next, the ∆T thus calculated will be used to determine the protection area of each lightning conductor, with the help of the formula provided by the standard. From the beginning, the PREVECTRON®2 lightning conductor has been tested in the best high-voltage laboratories in France (EDF’s “Les Renardiéres” and “Cediver” of Bazet laboratories) and in the world (Louvain in Belgium, IREQ in Canada, and KERI in South Koreea). The tests have demonstrated that the triggering time of the PREVECTRON®2 system was shorter by a few tens of microseconds as compared to the triggering time of the single rod, tested under identical conditions.