Abstract: Lightning receptor for a wind turbine rotor blade, the lightning receptor being produced in one part in a casting process and having a receptor tip, a receptor suction side, a receptor pressure side, a receptor nose edge and a receptor end edge, defined by a fastening portion with two mutually opposite adhesive bonding surfaces which are formed by recesses in the receptor pressure side and in the receptor suction side, a receptor-nose-edge-side leg and a receptor-end-edge-side leg projecting beyond the fastening portion in a direction away from the receptor tip.

Abstract: A wind turbine rotor blade is provided. The wind turbine blade has a lightning receptor, a first electric line, and a potential equalization arrangement having a first electrode, which is connected to the lightning receptor, and a second electrode, which is connected to the first electric line, a spark gap being formed between the two electrodes, mutually facing sides of the two electrodes forming an air flow channel, which is arranged such that the ambient air that is incident when the wind turbine rotor blade is in operation flows through it.

Abstract: A spar cap assembly for a wind turbine rotor blade with a carbon fiber-reinforced spar cap, a lightning conductor, which extends along the spar cap, and an equipotential bonding element, which connects the spar cap and the lightning conductor together electrically conductively, wherein the spar cap includes a plurality of layers of pultruded semi-finished products and the equipotential bonding element comprises a sheet of a carbon fiber material, which rests against an end face of an end on the blade root side of one of the pultruded semi-finished products and against an end face of an end on the blade tip side of one of the pultruded semi-finished products.

Abstract: Lightning receptor for a wind turbine rotor blade, the lightning receptor being produced in one part in a casting process and having a receptor tip, a receptor suction side, a receptor pressure side, a receptor nose edge and a receptor end edge, defined by a fastening portion with two mutually opposite adhesive bonding surfaces which are formed by recesses in the receptor pressure side and in the receptor suction side, a receptor-nose-edge-side leg and a receptor-end-edge-side leg projecting beyond the fastening portion in a direction away from the receptor tip.

Abstract: A wind turbine rotor blade is provided. The wind turbine blade has a lightning receptor, a first electric line, and a potential equalization arrangement having a first electrode, which is connected to the lightning receptor, and a second electrode, which is connected to the first electric line, a spark gap being formed between the two electrodes, mutually facing sides of the two electrodes forming an air flow channel, which is arranged such that the ambient air that is incident when the wind turbine rotor blade is in operation flows through it.