Tower for a wind turbine
The invention relates to a tower for a wind turbine and to a cable guide therefor, wherein a nacelle for the wind turbine is arranged on the tower such that it can rotate by means of the azimuth bearing about a vertical axis which runs in the longitudinal direction of the tower. Current-conducting cables are routed in the tower of the wind turbine out of the nacelle from electrical components to the ground. The tower has at least two bundling devices which are suitable for joining the individual cables which run longitudinally in the tower together to form a cable bundle with the cables fixed with respect to one another. The bundling devices are attached to the cables between an upper and a lower area of the cable bundle. In this case, geometric configuration of the bundling device ensures that at least between three cables it is not below a specific minimum distance.
1. A tower for a wind turbine comprising,
an upper end, on which a nacelle is rotatably arranged,
wherein at least three cables are arranged longitudinally in the tower and form a cable bundle with a longitudinal axis,
and an upper end of the cable bundle is non-rotatably connectable to the nacelle,
and a lower region of the cable bundle is non-rotatably connected to the tower, wherein
at least two bundling devices comprising fastening devices for attachment of each bundling device to the at least three cables are provided,
wherein the bundling devices are arranged to the at least three cables between the upper end of the cable bundle and a lower portion of the cable bundle such that the at least three cables in the cable bundle have a minimum distance (D) with respect to each other, and
further wherein the fastening devices are rotatably arranged on a carrier such that an oblique position of the at least three cables with respect to the longitudinal axis of the cable bundle is automatically compensatable for by means of the fastening devices.
2. The tower according to claim 1 , wherein a number of the fastening devices at least corresponds to a number of the at least three cables.
3. The tower according to claim 1 , wherein the fastening devices are formed as clamping clips, that are fastened onto the carrier, wherein each clamping clip comprises a receptacle for a cable.
4. The tower according to claims 3 , wherein the receptacle has a substantially triangular cross-section.
5. The tower according to claim 1 , wherein each bundling device comprises at least three fastening devices.
6. The tower according to claim 3 , wherein at least one fastening device comprises one insert, wherein a cross-section of the receptacle is reduced through the insert.
7. The tower according to claim 1 , wherein ring guides are arranged in the tower, whereby a possibility of radial movement of the cable bundle is limited.
8. The tower according to claim 1 , wherein the bundling devices have a distance with respect to each other, wherein the distance is chosen so that a free twist of the cables is admitted, and further wherein the cables are not twistable so that the bundling devices are in contact with each other.
9. The tower according to claim 8 , wherein the bundling devices are arranged at a distance of 500-600 mm from each other.
10. The tower according to claim 7 , wherein one or more of the bundling devices comprises a radial support, wherein the support is slidably locatable in a ring guide.
11. The tower according to claim 9 , wherein the radial support is U-shaped and is connected to two bundling devices.