Self-clamping cable guard for an electric power cable clamping an electric power cable bundle of a cable support arrangement in a wind turbine, cable support arrangement, and wind turbine

Abstract

The present invention relates to a self-clamping cable protector (40) for clamping a power cable (30) of a power cable bundle (30B) of a cable support arrangement (1) in a wind turbine (5), wherein the self-clamping cable protector (40) comprises a central longitudinal axis (L) of the self-clamping cable protector (40). 40 ) for reliably clamping the power cable (30) of the power cable bundle (30B) inside each of the three recesses (46), and wherein the self-clamping cable guard (40) includes a central longitudinal axis (L 40 ) arranged in a manner similar to that of a cable support arrangement (1) and a wind turbine (5), wherein each of the three recesses (46) includes an open side (47) for inserting a corresponding power cable (30) of the power cable bundle (30B) therein, and each of the open sides (47) of one of the three recesses (46) is respectively limited by two of the three wear protection plates (45) to protect the power cable (30) clamped inside the recess (46) from wear. Further, the present invention relates to a cable support arrangement (1) for a wind turbine (5) and a wind turbine (5).

Description

Technical Field

[0001] The invention relates to a self-clamping cable guard for clamping a power cable of a power cable bundle of a cable support arrangement in a wind turbine, a cable support arrangement and a wind turbine. Background Art

[0002] The nacelle of a wind turbine is typically mounted to the tower with the aid of a yaw interface, allowing the nacelle to yaw. This allows the wind turbine's rotor blades to be optimally positioned into the wind. The electricity generated by the wind turbine's generator is transferred from the generator's windings to a transmission cable arrangement in the wind turbine's tower, typically using multiple power phase cable sets, depending on the wind turbine's power rating. For example, the power from a 4 MW generator can be transmitted via seven three-phase cables, requiring 21 power cables. The power cables extend from the generator into the tower and down through the tower to onshore or submarine power transmission lines. The power cables themselves are heavy and must be supported in the tower. Therefore, over most of the tower's height, the cables are secured in a substantially vertical, stationary transmission cable arrangement by suitable retainers.

[0003] However, the upper section of the power cable (i.e., some length of the power cable arrangement between the generator and the stationary, fixed transmission cable arrangement in the tower) must accommodate the yawing motion of the nacelle. The yaw drive is typically capable of rotating the nacelle through two complete revolutions in either direction. Therefore, this length of the power cable arrangement must be flexible enough to accommodate this rotational motion of the nacelle. To this end, known cable arrangements in the flexible section between the yaw drive level and the transmission cable arrangement (referred to as "power cable twisting arrangements" or "power cable loops") attempt to retain the cables in a manner that keeps the individual cables separate and ensures that rotational displacements of the nacelle are evenly distributed over the length of the flexible section. For example, in the prior art, the individual cables of the power cable twisting arrangement are threaded through holes in a plurality of cable guides. Several cable guides may be used, spaced apart at intervals. This arrangement ensures that the individual cables of the power cable twisting arrangement remain separated by a distance over the length of the power cable in this flexible section.

[0004] A problem associated with known cable guide arrangements is that the entire power cable loop is very large and cumbersome. Typically, a power cable loop is assembled by arranging a suitable number of cable guides along a group of interface power cables that connect the generator to a transmission cable secured to the tower wall. For example, eight cable guides, each with twelve through-openings, may be spaced apart along a group of twelve interface power cables. The position of the cable guides along the power cable loop is secured by, for example, securing them to one or more of the power cables using cable ties. However, such ties should not be too tight, as a certain degree of freedom is required to allow the power cables to twist relative to each other and to the cable guides during yaw motion. Consequently, the cable guides can slide down the power cable loop, ultimately causing them to no longer be positioned at regular intervals and failing to perform their intended function of keeping the power cables separate and distributing yaw motion along the length of the power cable loop.

[0005] The length of the flexible section or power cable loop can be approximately 10 to 12 meters or more. Once the wind turbine tower is erected, a crane is required to lift the power cable loop into position. The crane must be able to reach a height corresponding to the combined height of the tower and the length of the power cable loop. This requirement significantly increases the overall cost of installing a wind turbine, particularly in difficult locations such as offshore wind farms.

[0006] EP 2 918 828 A1 discloses an improved way of arranging power cables between a generator and a tower of a wind turbine that solves the aforementioned problems. Therein, a cable support arrangement is proposed that is implemented to support a plurality of power cable bundles in the upper region of the wind turbine tower, the cable support arrangement comprising a plurality of cable bundle guides, wherein the cable bundle guides comprise a plurality of through-openings, wherein each through-opening is implemented to enclose a power cable bundle comprising a plurality of power cables, and an offset fixture that is implemented to maintain an offset distance between consecutive cable bundle guides.

[0007] However, power cables are typically thick copper cables encased in an insulating sheath and have only a limited degree of flexibility. When a wind turbine is operating at or near its rated power output, the power cables heat up. When the flexible portion twists to follow the yawing motion of the nacelle, the power cable can press against the edges of the cable guide holes through which it passes with a certain force, causing the cable to be stressed. A hot power cable can thus become bent or otherwise twisted. For example, the cable's insulation can wear away, exposing the cable core (typically multiple copper wires twisted into a cable). The repeated stress can cause damage to the cable core, for example, individual copper strands can break or snap. Such damage can lead to cable fires. Summary of the Invention

[0008] The object of the present invention is therefore to minimize wear on power cables within a wind turbine. This object is achieved by the subject matter of the claims. Consequently, this object is achieved by a self-gripping cable guard according to independent claim 1, a cable support arrangement according to dependent claim 9, and a wind turbine according to dependent claim 13. Further details of the invention can be found in the other claims as well as in the description and the drawings. Thus, the features and details described in conjunction with the self-gripping cable guard of the invention apply to the cable support arrangement of the invention and the wind turbine of the invention, and vice versa, so that they constitute disclosure content related to separate aspects of the invention or can be referenced to one another.

[0009] According to a first aspect of the present invention, the object is solved by means of a self-clamping cable guard for clamping a power cable of a power cable bundle of a cable support arrangement structure in a wind turbine, wherein the self-clamping cable guard includes three recesses arranged around a central longitudinal axis of the self-clamping cable guard for reliably clamping the power cable of the power cable bundle inside each of the three recesses, and wherein the self-clamping cable guard includes three wear protection plates arranged around the central longitudinal axis, wherein each of the three recesses includes an open side for inserting a corresponding power cable of the power cable bundle therein, and each of the open sides of one of the three recesses is respectively restricted by two of the three wear protection plates to protect the power cable clamped inside the recess from wear.

[0010] The self-gripping cable guard grips the power cables of the power cable bundle so that they are arranged in a predefined position relative to each other and protects them from wear by means of the wear protection plates.

[0011] The cable guard is self-clamping in the sense that there are no external clamping means for interlocking the power cable in the recess of the self-clamping cable guard. Instead, the cable guard itself clamps the power cable. This can be achieved by means of an elastic and / or flexible design of the self-clamping cable guard and / or by reducing the size of the recess relative to the power cable. Reducing the size means in particular that the surface of the recess is made slightly smaller than the cross section of the power cable so that the recess widens when the power cable is inserted therein. In a circular design of the recess and a round power cable, the diameter of the recess can be smaller than the diameter of the power cable in order to provide a recess of reduced size relative to the power cable. Thereby, when the power cable is inserted into the recess, a clamping force acts on the power cable due to the widening of the recess due to the inserted power cable and / or due to the elastic and / or flexible design of the self-clamping cable guard.

[0012] The self-clamping cable guard may be used for any cable, in particular power cables, of a wind turbine. However, a preferred application of the self-clamping cable guard is clamping a power cable of a power cable bundle of a cable support arrangement in a wind turbine.

[0013] The self-clamping cable guard includes three recesses. However, the self-clamping cable guard may include more than three recesses. Preferably, however, the self-clamping cable guard includes exactly three recesses. Thus, a power cable of a power cable bundle having three power cables can be clamped in each of the recesses. Each of the three power cables can correspond to a phase of a three-phase generator of a wind turbine. The three recesses can be arranged in a triangular formation.

[0014] A central longitudinal axis extends through a center point of the self-retaining cable guard and along its length.

[0015] The recess inside the self-gripping cable guard can be round, in particular circular. The circular recess can have a tubular shape inside the self-gripping cable guard and along its length. Thus, a round, in particular round, power cable can be easily and reliably clamped inside the circular recess.

[0016] The wear protection plate can be arranged partially around the recess. Further, the wear protection plate cannot be a separate component, but only provides plate-like protection for the power cable to prevent wear. For this purpose, the wear protection plate can have a flat or substantially flat wear protection surface.

[0017] Preferably, the self-clamping cable guard is made of an elastic and / or flexible material so that the recess can be elastically widened for receiving the power cable and elastically reset to clamp the power cable. For example, plastic, in particular hard plastic, can be used as the material of the self-clamping cable guard.

[0018] It is further preferred that the self-clamping cable protector include a central portion, wherein the central portion has a center point that coincides with the central longitudinal axis and has a circular arc triangle shape with concave circular arc sides. Furthermore, the concave portion may have the concave circular arc sides of the circular arc triangle shape as its edges. In such a design, the concave portions, and thus the power cable, are clamped in close proximity to each other, allowing the size of the self-clamping cable protector to be conveniently kept small.

[0019] Preferably, the self-clamping cable guard includes three outer portions extending outward from a central portion, wherein each of the outer portions is attached to a vertex portion of the central portion's arcuate triangular shape. The vertex portion should not have a vertex, but rather the portion of the central portion having the lowest thickness, or in other words, the location where the concave arcuate sides of its arcuate triangular shape coexist. A clamping force for the power cable can then be applied by means of the outer portions and the concave arcuate sides of the central portion's arcuate triangular shape. This allows for a particularly uniform distribution of the clamping force on the power cable.

[0020] Furthermore, each of the outer portions preferably has a circular arc triangle shape with two concave arcuate edges and one straight edge, wherein the straight edge serves as the wear protection surface of the three wear protection plates. Here, the two concave arcuate edges of the circular arc triangle shape of the outer portion, together with the concave arcuate edge of the circular arc triangle shape of the central portion, exert a clamping force. Furthermore, the wear protection surface is configured as a straight edge. Thus, the force applied to the wear protection plates provides further clamping force and ensures that the power cable is securely clamped within the self-clamping cable guard.

[0021] Likewise, it is preferred that the wear protection plate is aligned with an imaginary triangle having a center point aligned with the central longitudinal axis and circumscribing the self-gripping cable guard. Thus, the wear protection plate is arranged in a triangular shape and is capable of protecting the power cable from wear from three sides.

[0022] Furthermore, it is preferred that the self-clamping cable guard is of a monolithic design. Thus, the self-clamping cable guard can be produced from one single piece of material. This enables a particularly cost-effective production of the self-clamping cable guard.

[0023] Furthermore, it is preferred that the self-clamping cable protector is injection molded. Thus, the self-clamping cable protector can be produced at particularly low cost. A long self-clamping cable protector can be produced and then cut into self-clamping cable protectors of the desired length.

[0024] According to a second aspect of the invention, the object is solved by means of a cable support arrangement structure for a wind turbine, which comprises a plurality of self-clamping cable guards according to the first aspect of the invention, wherein the cable support arrangement structure comprises at least one cable bundle guide and a plurality of power cable bundles, each power cable bundle consisting of three power cables, and wherein each of the plurality of self-clamping cable guards clamps one of the three power cables of each of the plurality of power cable bundles in each of its three recesses, and wherein each of the plurality of self-clamping cable guards in the interior of which the power cable is clamped is arranged in one of a plurality of through-openings inside the at least one cable bundle guide.

[0025] Thereby, the three power cables of each of the power cable bundles are protected from wear when moving inside the pass-through opening due to the protection by means of the wear protection plate of the self-clamping cable guard which clamps the three power cables.

[0026] A plurality of cable bundle guides may be used to hold power cable bundles at a distance from one another. Adjacent pairs of cable bundle guides may be secured to one another by substantially equal lengths of wire or other means.

[0027] Preferably, the shape of the plurality of through-openings in the at least one cable bundle guide is based on the cross-sectional shape of the power cable bundle. The through-openings may be sized to allow some clearance between their edges and the self-clamping cable guard, or to allow the self-clamping cable guard to form-fit within the through-openings.

[0028] Preferably, the plurality of through-openings inside the at least one cable harness guide have a triangular shape with straight sides, and the wear protection plates of the self-clamping cable guard are arranged parallel to the straight sides of the triangular shape of the through-openings. Thus, the straight sides of the triangular shape of the through-openings are aligned with the wear protection plates, so that the wear protection plates are evenly subjected to wear, and the power cable is not subjected to wear at the open side of the recess of the self-clamping cable guard.

[0029] Furthermore, it is preferred that the at least one cable harness guide comprises a tilting mechanism for tilting the cable harness guide about a tilting axis perpendicular to the central longitudinal axis of the plurality of self-gripping cable guards. This allows for further flexibility in the movement of the power cable harness guide relative to the power cable harness and thus further reduces wear.

[0030] Likewise, it is preferred that the cable harness guide is a circular plate, and the plurality of through openings are arranged around a center point of the circular flat plate, thereby achieving a compact configuration of the cable harness guide.

[0031] The cable support arrangement can be arranged to support multiple power cable bundles in an upper region of a wind turbine tower. Furthermore, the cable support arrangement can include an offset fixture configured to maintain an offset distance between consecutive cable bundle guides. The offset fixture ensures that the cable bundle guides are positioned at regular intervals, so that they consistently perform their intended function of keeping the power cable bundles separate and distributing yaw motion along their length. In the cable support arrangement, adjacent cable bundle guides can be connected via the offset fixture, such that fixing the position of only one upper cable bundle guide at a given point is sufficient to secure the positions of the remaining cable bundle guides.

[0032] According to a third aspect of the invention, the object is solved by means of a wind turbine comprising a nacelle mounted on top of a tower of the wind turbine, a generator arranged inside the nacelle for generating electricity and at least one self-clamping cable guard according to the first aspect of the invention or a cable support arrangement according to the second aspect of the invention.

[0033] In the wind turbine, a plurality of power cable bundles may extend from the generator to a stationary transmission cable arrangement in an upper region of the tower. The wind turbine may further be arranged to allow for yaw displacement of the nacelle. The cable support arrangement according to the second aspect of the present invention may be arranged to support the plurality of power cable bundles in the upper region of the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Further advantages, features and details of the present invention are revealed from the following description, in which the present invention is described in detail with reference to the accompanying drawings. Figures 1 to 6 Thus, the features from the claims and the features mentioned in the description may be essential to the invention alone or in any combination. In the drawings, schematically shown:

[0035] Figure 1 is an embodiment of a wind turbine according to the present invention,

[0036] Figure 2 is a cable support arrangement in a first position according to the prior art,

[0037] Figure 3 yes Figure 2 the cable support arrangement being in a second position,

[0038] Figure 4 yes Figure 2 and Figure 3 A cable support arrangement according to the prior art cable harness guide,

[0039] Figure 5is an embodiment of a self-retaining cable guard according to the present invention, and

[0040] Figure 6 is included Figure 5 Embodiments of a cable support arrangement according to the invention of a self-gripping cable guard.

[0041] In the drawings, like reference numerals refer to like objects throughout. Objects in the drawings are not necessarily drawn to scale. DETAILED DESCRIPTION

[0042] Figure 1 An embodiment of a wind turbine 5 according to the present invention is shown. Wind turbine 5 includes a generator 3 housed in a nacelle 4, which is mounted atop a tower 2. As the rotor blades 50 of wind turbine 5 rotate, generator 3 generates power. Nacelle 4 can yaw so that rotor blades 50 are always optimally positioned into the wind. Power is transmitted via a power cable loop 30L to a fixed transmission cable arrangement 31. Fixed transmission cable arrangement 31 can be fixed, for example, to the wall of tower 2. The function of power cable loop 30L is to accommodate rotation of nacelle 3 about a vertical axis. The nacelle can yaw up to 720° in one direction before reversing the direction of rotation. Power cable loop 30L typically includes multiple power cables 30, depending on the number of generator poles and power phases. A five-pole, three-phase generator would have 15 power cables 30 in the power cable loop 30L leading from generator 3 to transmission cable arrangement 31. The power cable loop 30L is fixed only at the generator 3 and is fixed to a vertical displacement device 32 that can move up or down when the length of the power cable loop 30L changes in response to yaw motion. The fixing of the power cable loop 30L according to the present invention will be explained below.

[0043] Figure 2 An embodiment of a cable support arrangement 1 according to the prior art is shown, viewed from below inside a tower 2, looking upward toward an entry point 21 at the top level 20 of the tower 2. Here, the nacelle is in the "empty" position, and the power cables 30 of a power cable loop 30L hang directly downward from the top level 20 of the tower 2. The power cables are arranged into bundles 30B of three power cables 30 for a three-phase generator. Multiple cable bundle guides 10 are used to maintain the power cable bundles 30B at a distance from one another. Adjacent pairs of cable bundle guides 10 are secured to one another by wires 11 of substantially equal length. The wires 11 ensure that the cable bundle guides 10 cannot slide downward along the power cable loop 30L. As long as the uppermost cable bundle guide 10 is secured near the upper level 20 (e.g., near the entry point 21), the position of the remaining cable bundle guides 10 is fixed.

[0044] Figure 3Shown in the second position Figure 2 Cable support arrangement 1 . Here, the nacelle has yawed a certain amount, causing the power cable loop 30L to twist and the torque arm 32 to move upward by a corresponding amount. Cable bundle guide 10 ensures that the power cable bundle 30B maintains its relative orientation. The shape of through-opening 100 prevents damage to the cables 30 of power cable bundle 30B.

[0045] This is shown in Figure 4 middle, Figure 4 The diagram shows a cable harness guide 10 according to the prior art having seven through-openings 100, each of which is sized to easily accommodate three cable harnesses 30B. The edges of the through-openings 100 are rounded to avoid pressure points on the power cables when the power cable loop 30L is twisted. Since the power cables are arranged in bundles 30B, the diameter d of the cable harness guide 10 is 10 Smaller than a separate arrangement of the power cables in the through-opening of the cable harness guide 10 .

[0046] Figure 5 An embodiment of a self-retaining cable guard 40 according to the present invention is shown. Figure 1 The wind turbine 5 is included in Figure 2 and Figure 3 The cable support arrangement structure 1 and Figure 4 The cable harness guide 10 of the embodiment of the present invention is shown in FIG. The self-clamping cable guard 40 comprises a central portion 41 and three outer portions 43.1, 43.2, 43.3. The self-clamping cable guard 40 is designed from a single piece of elastic material (such as hard plastic) and is injection molded.

[0047] The central portion 41 has a central longitudinal axis L aligned with the central longitudinal axis L of the self-retaining cable guard 40. 40 Furthermore, the central portion 41 has a circular arc triangle shape with concave circular arc sides 42.1, 42.2, 42.3. The concave circular arc sides 42.1, 42.2, 42.3 extend between the apex portions 48.1, 48.2, 48.3 of the circular arc triangle shape of the central portion 41.

[0048] The three outer sections 43.1, 43.2, 43.3 of the self-gripping cable guard 40 are arranged at apex sections 48.1, 48.2, 48.3. Each of the three outer sections 43.1, 43.2, 43.3 has the shape of a circular arc triangle with two concave circular arc sides 44.1, 44.2, 44.3, 44.4, 44.5, 44.6 and one straight side 49.1, 49.2, 49.3. The straight sides 49.1, 49.2, 49.3 of the outer sections 43.1, 43.2, 43.3 are the wear protection surfaces 49.1, 49.2, 49.3 of the wear protection plates 45.1, 45.2, 45.3 formed by the outer sections 43.1, 43.2, 43.3.

[0049] The concave arcuate edges 42.1, 42.2, 42.3 of the central portion 41 and the concave arcuate edges 44.1, 44.2, 44.3, 44.4, 44.5, 44.6 of the outer portions 43.1, 43.2, 43.3 form circular recesses 46.1, 46.2, 46.3 for inserting the power cable 30 therein. To this end, the recesses 46.1, 46.2, 46.3 are elastically widened, and the power cable 30 is inserted therein through the open sides 47.1, 47.2, 47.3 of the recesses 46.1, 46.2, 46.3. The open sides 47.1, 47.2, 47.3 are each limited by two of the three wear protection plates 45.1, 45.2, 45.3 to protect the power cable 30 held within the recesses 46.1, 46.2, 46.3 from wear.

[0050] Figure 6 Show including according to Figure 5 An embodiment of a cable support arrangement 1 according to the invention of a plurality of self-gripping cable guards 40 .

[0051] The cable support arrangement 1 is shown with a cable bundle guide 10 having a plurality of, in this case eight, through-openings 100. The cable bundle guide 10 is configured as a circular plate with through-openings 100 arranged around its center point. The through-openings 100 have a triangular shape corresponding to the triangular shape of the power cable bundle 30B. The cable support arrangement 1 can include multiple cable bundle guides 10 arranged at a distance from each other, although only one is shown.

[0052] The cable harness guide 10 is tilted relative to a central longitudinal axis L perpendicular to the plurality of self-gripping cable guards 40 by means of a tilting mechanism 14 . 40 The tilt axis T 10 tilt.

[0053] Each of the plurality of self-retaining cable guards 40 is shown inserted into each of the plurality of pass-through openings 100. For clarity, the power cable 30 is omitted from this illustration.

[0054] The wear protection surfaces 49.1, 49.2, 49.3 are arranged parallel to the straight sides 12.1, 12.2, 12.3 of the through-opening 100. The corners 13.1, 13.2, 13.3 of the triangular shape of the through-opening 100 are provided with clearance relative to the power cable 30 so that it is not subject to wear.

Claims

1. A cable support arrangement (1) for a wind turbine (5), comprising: A plurality of self-clamping cable guards (40) for clamping power cables (30) of a power cable bundle (30B) of a cable support arrangement (1) in a wind turbine (5), wherein each self-clamping cable guard (40) comprises a central longitudinal axis (L) of the self-clamping cable guard (40) 40 ) are arranged to securely clamp the power cable (30) of the power cable bundle (30B) inside each of the three recesses (46), and wherein each self-clamping cable guard (40) includes a central longitudinal axis (L) around the central longitudinal axis (L 40 ), wherein each of the three recesses (46) includes an open side (47) for inserting a corresponding power cable (30) of the power cable bundle (30B) therein, and each of the open sides (47) of one of the three recesses (46) is respectively limited by two of the three wear protection plates (45) to protect the power cable (30) clamped inside the recess (46) from wear, The cable support arrangement (1) comprises at least one cable bundle guide (10) and a plurality of power cable bundles (30B), each power cable bundle (30B) consisting of three power cables (30), and wherein each of the plurality of self-clamping cable protectors (40) clamps one of the three power cables (30) of each of the plurality of power cable bundles (30B) in each of its three recesses (46), and wherein each of the plurality of self-clamping cable protectors (40) in which the power cable (30) is clamped is arranged in one of the plurality of through-openings (100) of the at least one cable bundle guide (10). wherein the at least one cable harness guide (10) comprises a plurality of self-retaining cable guards (40) arranged around a central longitudinal axis (L 40 ) of the tilt axis (T 10 ) a tilting mechanism (14) for tilting the cable bundle guide (10), wherein, by means of the protection of the wear protection plate (45), the three power cables (30) of each of the power cable bundles (30B) are protected from wear when moving inside the through opening (100).

2. The cable support arrangement (1) according to claim 1, It is characterized by The self-clamping cable guard (40) is made of an elastic and / or flexible material, so that the recess (46) elastically widens to receive the power cable (30) and elastically returns to clamp the power cable (30).

3. The cable support arrangement (1) according to claim 1 or 2, It is characterized by The self-retaining cable guard (40) comprises a central portion (41), wherein the central portion (41) has a longitudinal axis (L 40 ) are aligned with the center point, and the center portion (41) has the shape of an arc triangle with concave arc sides.

4. The cable support arrangement (1) according to claim 3, It is characterized by The self-gripping cable guard (40) includes three outer portions (43) extending outwardly from the central portion (41), wherein each of the outer portions (43) is attached to a vertex portion (48) of the arcuate triangular shape of the central portion (41).

5. The cable support arrangement (1) according to claim 4, It is characterized by Each of the outer parts (43) has the shape of a circular arc triangle with two concave circular arc sides (44) and one straight side, wherein the straight side is the wear protection surface (49) of one of the three wear protection plates (45).

6. The cable support arrangement (1) according to claim 1 or 2, It is characterized by The wear protection plate (45) is consistent with an imaginary triangle having a longitudinal axis (L 40 ) and circumscribes the self-clamping cable guard (40).

7. The cable support arrangement (1) according to claim 1 or 2, It is characterized by The self-retaining cable guard (40) is designed as a single piece.

8. The cable support arrangement (1) according to claim 1 or 2, It is characterized by The self-retaining cable guard (40) is injection molded.

9. The cable support arrangement (1) according to claim 1, It is characterized by A plurality of through-openings (100) inside the at least one cable harness guide (10) have a triangular shape with straight sides (12), and the wear protection plates (45) of the self-clamping cable guard (40) are arranged parallel to the straight sides (12) of the triangular shape of the through-openings (100).

10. The cable support arrangement (1) according to claim 1, It is characterized by The at least one cable harness guide (10) is a circular plate, and the plurality of through openings (100) are arranged around a center point of the circular plate.

11. A wind turbine (5) comprising a nacelle (4) mounted on top of a tower (2) of the wind turbine (5), a generator (3) arranged inside the nacelle (4) for generating electricity, and a cable support arrangement (1) according to any one of the preceding claims.

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