A rod - type lightning conductor, connected to earth, efficiently works by altering, at its level, the equipotentials which match the structures of the building it protects. The emergence of the lightning conductor is an important factor in increasing the local electric field. The principle of the piezoelectric lightning conductor designed by Franklin France relies on several factors: the reinforcement of the local electric field and the early creation of a preferential discharge channel.

Surge voltage often destroys electronic equipment and systems to a large extent. Damage is not just restricted to industrial and commercial system. Building automation and every day household appliances are also affected. Without effective protective measures against surge voltages, one must expect high cost for repairing or replacing the facilities affected..