According to NF C17 102 standard related to “Lightning Protection – Protection of Structures and Open Areas against lightning using Early Streamer Emission air terminals – July 1995“the ESE air terminals must be submitted to an Assessment Procedure (Annex C – Normative). It allows to calculate for each air terminal its “advance triggering” value ?t that is then use for the calculation of the protection radius of the air terminal:

– http://www.indelec.com/foudre/La_foudre_apprivoisee/Prevectron_2.aspx

http://www.indelec.com/Recherche_developpement/Default.aspx

In addition, INDELEC is conducting other tests on its air terminals in order to ensure their perfect reliability and highest standard of safety for its Clients. Recently, two models of Prevectron® air terminals have been successfully tested in China at the Beijing Testing Center of Surge Protective Devices with massive 100kA impulse current (10/350µ wave form).

This confirms the test results obtained in two other independent laboratories in Czech Republic (EGU Laboratory – Praha – 1999) and India (CPRI – Bangalore – 2006) as well as the results obtained under real lightning conditions in Japan (Nadachi  – Peak current = 240 kA see http://www.indelec.com/Recherche_developpement/Resultats.aspx).

For further inquiries, please contact INDELEC or its local representative.