Provided is a wind turbine including a generator enclosed in a generator housing, the generator housing including a rotating housing and a stationary housing, whereby the rotating housing is separated from the stationary housing by a first gap; a canopy mounted on a tower and including an electrical connection to a down conductor of the tower, wherein the canopy is separated from the generator housing by a second gap; a lightning current path provided by a plurality of brush assemblies mounted on the stationary housing, wherein a brush assembly includes a brush holder mounted on the stationary housing such that a carbon brush extends across the first gap to make electrical contact with the rotating housing; and an electrical connector extending across the second gap to electrically connect the brush holder to the canopy. Also provided is a method of providing a lightning current path for such a wind turbine.

An apparatus for fastening lines, in particular power cables, pipes or hoses, includes at least two interconnectible fastening parts which form a feedthrough when assembled. The fastening parts include two clamp parts which are hinged together via at least one hinge and which each receive at least one clamping block having a groove in its outer lateral surface, in which groove a portion of a clamp part is positioned, and which clamping block has, on its inner face opposite the groove, a channel, which has the shape of a cylinder-barrel portion and extends axially at a right angle to the groove, for receiving a line. A fastener is arranged at the end of a clamp part opposite the hinged connection, the fastener hook of which fastener can be brought into engagement with a mating fastener hook arranged at the end of the other clamp part opposite the hinged connection.

A method of installing a wind turbine (10) at an offshore location. The wind turbine (10) includes a tower (18) and an energy generating unit (16). The tower (18) is configured to be secured to a transition piece (12, 42). Prior to shipping, the method includes electrically coupling electrical devices and/or systems (52) by cables (54) to energy generating unit (16) or wind turbine tower (18) or a test dummy therefor. The electrical devices and/or systems (52) are configured to be attached to transition piece (12, 42) once the tower (18) is installed. The method includes testing and commissioning the electrical devices and/or systems (52) while electrically coupled to the cables (54). Prior to shipping and after testing and commissioning, the method includes storing the electrical devices and/or systems (52) and attached cables (54) inside the tower (18). The cables (54) are long enough to permit the electrical devices and/or systems (52) to be attached to the transition piece (12, 42) without disconnecting the electrical devices and/or systems (52) from the cables (54).

A cable guiding structure (200) for a tower (108) of a wind turbine (10) is described. The tower has a height in substantially vertical direction (110) and a width in substantially horizontal direction (112). The cable guiding structure (200) is adapted for guiding a cable (160) within the tower of the wind turbine. The cable guiding structure includes a horizontal movement element (300) at least partially movable in the width direction (112) of the tower (108). The horizontal movement element (300) includes a receiving part (301) for receiving the at least one cable (160) of the wind turbine and wherein the horizontal movement element allows a movement of the at least one cable (160) in the width direction (112) of the tower (100). Further, a method for mounting a cable guiding structure is described.

Protection for a cable, piping or tubing comprises a bend stiffener. This includes at least one element comprising a tubular wall having a substantially smooth inner surface, which defines circumferential recesses along at least part of its length. Each recess has an open end at the circumference of the wall, a base, and sloping sides that are closer to each other at the base than at the open end. Each recess has a depth of no more than 50% of the thickness of the tubular wall. The bend stiffener may include a number of such elements connected together. The cable protection may also include a clamp attached to the bend stiffener.

A new method for installing one or more electric cables (60) in a wind turbine tower section (100) is provided. The method comprises providing the wind turbine tower section (100) in a substantially horizontal orientation and installing a zip line (20) inside the wind turbine tower section (100), between a first end (120) and a second end (130) of the wind turbine tower section (100). The method further comprises coupling a second end of the electric cables (60) to the zip line (20) at a location near the first end of the wind turbine tower section (100), drawing the second end of the electric cables (60) through the wind turbine tower section (100) along the zip line (20), decoupling the second end of the electric cables (60) from the zip line (20), and removing the zip line (20) from the wind turbine tower section (100). The method further comprises anchoring a first end of the electric cables (60) to the wind turbine tower section (100), at a location adjacent the first end of the wind turbine tower section (100), and anchoring the second end of the electric cables (60) to the wind turbine tower section (100), at a location adjacent the second end of the wind turbine tower section (100).

A stiffening member for a protective housing assembly which defines a bore for receiving a utility line. The housing assembly includes a first body member, and a second body member arranged adjacent to one another to define immediately adjacent sections of the bore which surrounds the utility line. The stiffening member includes a first side for engagement with the first body member, and a second side for engagement with the second body member wherein pedestals extend from the first side of the stiffening member in a first direction away from the second side.

The present disclosure relates to towers for wind turbines comprising a top section supporting a nacelle about a yaw axis, wherein the nacelle comprises an electric power component and a power cable for electrically connecting the electric power component to an electrical connection point in a lower section of the tower. The power cable extends downwards from the nacelle to a first height along a substantially central area of the tower, and at a first height the power cable comprises a power cable loop. The power cable loop includes an upwards curve, and a downwards curve. The power cable loop comprises a movable cable part, and a fixed cable part, and the fixed cable part comprises at least a portion of the downwards curve. The present disclosure further relates to wind turbines and to methods for arranging cables in wind turbine towers.

A hollow structural element of a wind energy plant, in particular an offshore wind energy plant which includes a hollow structural element, and a cable arrangement extending along the hollow structural element. A shading element is arranged on the hollow structural element at a distance from the cable arrangement.

An annular seal member comprising a seal body comprising a locating portion locatable against a wall element of an offshore structure, an inner surface, an outer surface and a lip portion that defines an open mouth of the seal member for receiving an elongate element therethrough; wherein the seal body is locatable against the wall element such that when a static pressure acting on the outer surface of the seal body exceeds a static pressure acting on the inner surface of the seal body a net positive pressure is exerted on the outer surface which at least partly deforms inwardly to provide a portion of the seal body for sealing against an outer surface of the elongate element. An offshore structure.