Abstract: A method for manufacturing a wind turbine blade, includes the steps of: arranging an upper mould including a pre-casted fibre lay-up on a lower mould comprising a dry fibre lay-up and a mould core, applying vacuum to a space between the upper and lower moulds and the mould core, infusing at least the dry fibre lay-up and a connection region between the dry fibre lay-up and the pre-casted fibre lay-up with a resin, and curing the resin. By having the pre-casted fibre lay-up in the upper mould, the packing and positioning of dry composite materials on top of the mould core is avoided.

Abstract: Provided is a stepped conductivity arrangement between a carbon-based element and a down conductor of a wind turbine rotor blade, which stepped conductivity arrangement includes a transition interface arranged to electrically connect a first electrically conductive part and a second electrically conductive part, wherein the first electrically conductive part extends from the down conductor, the second electrically conductive part extends from the carbon-based element, and wherein the electrical conductivity of the transition interface decreases in the direction of the second electrically conductive part. The embodiments further describe a wind turbine rotor blade comprising such a stepped conductivity arrangement and a method of providing such a stepped conductivity arrangement.

Abstract: Provided is a rotor blade of a wind turbine including a leading edge section with a leading edge and a trailing edge section with a trailing edge, wherein the leading edge and the trailing edge divide the surface of the rotor blade into a suction side and a pressure side. The rotor blade further includes a blade shell for defining the outer shape of the rotor blade and a heating mat for anti-icing and/or deicing purposes which is arranged upon the blade shell. In the outboard region of the rotor blade, the heating mat is substantially or completely covered by a protective shield made of an electrically insulating polymer material. Use of a protective shield made of electrically insulating polymer material for electrical insulation of a heating mat in particular, against lightning strikes is also provided.

Abstract: Provided is a rotor blade of a wind turbine, the rotor blade including a lightning protection system with at least one lightning receptor, wherein the lightning receptor includes a receptor part which protrudes from the surface of the rotor blade. Furthermore, the section of the receptor part with the maximum lateral extension is spaced apart from the surface of the rotor blade. Additionally, a lightning receptor for such a rotor blade and to a wind turbine for generating electricity comprising at least one such rotor blade, is also provided.

Abstract: Provided is a rotor blade of a wind turbine including a leading edge section with a leading edge and a trailing edge section with a trailing edge, wherein the leading edge and the trailing edge divide the surface of the rotor blade into a suction side and a pressure side. The rotor blade further includes a blade shell for defining the outer shape of the rotor blade and a heating mat for anti-icing and/or deicing purposes which is arranged upon the blade shell. In the outboard region of the rotor blade, the heating mat is substantially or completely covered by a protective shield made of an electrically insulating polymer material. Use of a protective shield made of electrically insulating polymer material for electrical insulation of a heating mat in particular, against lightning strikes is also provided.

Abstract: Provided is a stepped conductivity arrangement between a carbon-based element and a down conductor of a wind turbine rotor blade, which stepped conductivity arrangement includes a transition interface arranged to electrically connect a first electrically conductive part and a second electrically conductive part, wherein the first electrically conductive part extends from the down conductor, the second electrically conductive part extends from the carbon-based element, and wherein the electrical conductivity of the transition interface decreases in the direction of the second electrically conductive part. The embodiments further describe a wind turbine rotor blade comprising such a stepped conductivity arrangement and a method of providing such a stepped conductivity arrangement.

Abstract: Provided is a rotor blade of a wind turbine, the rotor blade including a lightning protection system with at least one lightning receptor, wherein the lightning receptor includes a receptor part which protrudes from the surface of the rotor blade. Furthermore, the section of the receptor part with the maximum lateral extension is spaced apart from the surface of the rotor blade. Additionally, a lightning receptor for such a rotor blade and to a wind turbine for generating electricity comprising at least one such rotor blade, is also provided.