Lightning diverter strip

Details Lightning diverter strip Lightning diverter strip

H - Electricity

01

C

317/3.4

H01C 8/04 (2006.01) B64D 45/02 (2006.01)

Patent

CA 1106438

ABSTRACT OF THE DISCLOSURE A lightning diverter strip for use on aircraft components has a polyester tape base onto which is bonded by an epoxy a coating or layer of uniformly dispersed powdered aluminum. A preferred embodiment of the invention includes a light polyester substrate and a uniformly dispersed powdered metal applied to the upper surface thereof and bonded thereto by a suitable flexible epoxy. Finely powdered aluminum is used as the condcutor metal and is distributed uniformly along the surface of the substrate, in such a manner that a direct current conductive path is not formed. Thus, the finished strip will have a very high resistance so that it will read essentially as an open circuit to DC voltage. The particles are dispersed in sufficiently close fashion that the strip is essentially a short circuit to lightning currents and is also transparent to rf energy. Since the aluminum particles are of small size, very little energy is absorbed in the particles and physical damage due to lightning attachments is held to a minimum. The particles themselves, since they are very close together, appear to the lightning as a large number of series-connected tiny capacitors which guide the lightning strike to the fuselage.

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