Piece of composite material including a means of protection against lightning

摘要

The present invention relates to a piece (11) made of composite material based on thermosetting resin, which includes means for protection against lightning, comprising, on an upper surface (12) of the part (11) capable of being exposed to impacts of lightning, a continuous layer of a metal sheet (1) having perforations (2) according to a degree of perforation of 0,005% and 20 %.