SYSTEM FOR DRAINING A LIGHTNING CURRENT GENERATED BY A STORM DISCHARGE ON AN AIRCRAFT

摘要

The invention relates to a system for draining a lightning current produced by a thunderstorm discharge on avionic equipment (2) installed on an outer skin (20) of an aircraft, said outer skin being made of a composite material (21). ) covered with a layer of expanded metal (22) and having an orifice (6) in which is placed an aerodynamic plate (7) covering the avionic equipment (2), said aerodynamic plate being fixed on the outer skin by means of a doubler (3), the system comprising at least one metal plate (23, 30, 34) at least partially surrounding the aerodynamic plate and mounted to provide electrical continuity between the doubler (3) and the expanded metal layer (22) to ensure drainage of the lightning current in the expanded metal layer.