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INDELEC’s reputation in the field of lightning protectiondates back almost fifty years. Since 1986, the company has invested heavily in the manufacture of its PREVECTRON
® Early StreamerEmission Lightning Conductor. This has involved both fundamental research into the physical phenomena associated with lightning, as well as extensive product development. The latest PREVECTRON
® 2 series provides optimalprotection against the direct effects of lightning.

PREVECTRON BROCHURE - 18716 Operation

The PREVECTRON • The ionization device is charged
® 2is operating in three stages: via the lower electrodes using theambient electrical field (several million volts/meter when storms are prevalent). This means the PREVECTRON
® 2 is a fully autonomous sys-tem requiring no external power supply. • The ionization phenomenon is controlled by a device which detectsthe appearance of a downward leader: the local electrical field increa- ses rapidly when a discharge is imminent. The PREVECTRON
® 2 detects changes within the field, making it theonly E.S.E. air terminal to react at the precise moment the downward leader develops from the cloud to the ground. • Early triggering of the upward leader using a system of spark ionization between the upper electrodes and the central tip. The PREVECTRON
® 2’s ability to trigger an upward leader ahead of anyother protruding point within the protected area ensures it will be the preferential point of impact for the lightning discharge.