Flashover voltage reduction by proximate conductors

An attempt was made to quantify the flashover voltage reduction observed when conducting bodies are adjacent to the flashover path, in order to more adequately protect aircraft radomes against lightning strikes. In the case of flashover voltage reduction in fiberglass-reinforced plastic panels by adjacent conductors, significant effects are found with conducting layers of resistance of less than 1 Megaohm/square, as well as with thin wires that are spaced up to 100 m apart. A combination of the two reduced flashover voltage, over 500 mm, from 300 to 50 kV.