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

Claim 0:
1. A method for providing a wind turbine blade with lightning protection, the method comprising the steps of:
providing a lightning protection cover comprising a non-conductive medium and a conductive medium embedded in the non-conductive medium,
providing a blade body comprising a fiber composite material which is fully cured,
providing a further lightning protection cover comprising a second non-conductive medium and a second conductive medium embedded in the second non-conductive medium,
identifying a defective area on or within the blade body, wherein the defective area includes a defect that makes the defective area prone to being hit by lightning, wherein the defect comprises an air pocket or a metallic object,
attaching the lightning protection cover to the blade body, wherein attaching the lightning protection cover comprises encasing, with the lightning protection cover, a tip of the blade body,
attaching the further lightning protection cover to the blade body of the wind turbine blade and connecting the conductive medium of the lightning protection cover to the second conductive medium of the further lightning protection cover, wherein attaching the further lightning protection cover comprises fully surrounding, with the further lightning protection cover, the blade body when seen in a cross section taken at right angles to a longitudinal axis of the blade body, wherein the further lighting protection cover is attached at a distance from the lightning protection cover,
connecting the second conductive medium of the further lightning protective cover to an existing lightning protection system of a wind turbine, wherein the existing 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 the defective area on or within the blade body.