Patent ID: 7883321
Filing Date: 2011-02-08
Classification: F03D,Y02E,Y02P

Abstract:
1. A wind turbine rotor blade comprising a blade tip and a lightning protection system, said blade being at least partly made from a fibre-reinforced laminate, said lightning protection system including at least one metallic lightning receptor located at a surface of the blade, said at least one metallic lightning receptor positioned proximate to the distal end of the blade tip, and said blade comprising at least one electrically down-conducting element in the form of a metallic mesh, and at least one electrical conductor being provided for conducting an electrical current induced in the at least one metallic lightning receptor during a stroke of lightning, from the at least one metallic lightning receptor to the metallic mesh, where said at least one metallic lightning receptor at the surface of the blade is positioned in a first distance from the distal end of the blade tip, and said metallic mesh extending along a longitudinal axis of the blade from a second distance from the distal end of the tip of the blade and towards a root end of the blade, said second distance being larger than said first distance.