Spark resistant structure, in particular for aircraft

Abstract

Spark-resistant structure for use with aircraft, including a sheet-shaped external element made of a composite material with an exterior face bearing an electrically conducting surface layer for dissipating lightning energy. The external element also has an interior face. The structure further includes a sheet-shaped internal element with exterior and interior faces. The interior face of the external element is least partially superimposed on the exterior face of said internal element. Each element has holes which are aligned with each other. The structure also includes a fixing structure for holding the elements together in a fixed position passing through the aligned holes and forming an alignment. The fixing structure electrically contacts the conducting surface layer. Additionally, a first electrically conducting strip is positioned under the conducting surface layer of the external element, and it extends longitudinally in a direction of the alignment of the fixing structure. Moreover, the fixing structure passes through and makes an electrical contact with the first electrically conducting strip. The electrical contact between the fixing structure, as well as the electrical contact between the conducting surface layer and the conducting strip are both obtained by electrically conducting paste introduced into the holes in the external element.