Patent ID: 11867155
Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 8:
9. A wind turbine blade, comprising:
a blade body made of a fully cured fiber composite material;
a lightning protection cover attached to the blade body, wherein the lightning protection cover includes a non-conductive medium and a conductive medium embedded in the non-conductive medium, and wherein the lightning protection cover encases a tip of the blade body; and
a further lightning protection cover attached to the blade body at a distance from the lightning protection cover, wherein the further lightning protection cover includes a second non-conductive medium and a second conductive medium embedded in the second non-conductive medium, wherein the further lightning protection cover fully surrounds the blade body when seen in a cross section taken at right angles to a longitudinal axis of the blade body;
wherein the conductive medium of the lightning protection cover is electrically connected to the second conductive medium of the further lighting protection cover and the second conductive medium of the further lightning protective cover is electrically connected to a lightning protection system of a wind turbine, wherein the lightning protection system of the wind turbine is electrically connected to ground;
wherein the lightning protection cover and/or the further lightning protection cover are attached to the blade body with an adhesive medium, and
wherein the lightning protection cover or the further lightning protection cover is attached on top of a defective area on or within the blade body, wherein the defective area comprises an air pocket or a metallic object casted in during manufacturing of the blade body.