CN219535583U - 110kV single-circuit flat-bed-free type cable terminal tower - Google Patents
110kV single-circuit flat-bed-free type cable terminal tower Download PDFInfo
- Publication number
- CN219535583U CN219535583U CN202320520554.9U CN202320520554U CN219535583U CN 219535583 U CN219535583 U CN 219535583U CN 202320520554 U CN202320520554 U CN 202320520554U CN 219535583 U CN219535583 U CN 219535583U
- Authority
- CN
- China
- Prior art keywords
- cable
- tower
- seat
- bed
- wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model discloses a 110kV single-circuit flat-bed-free type cable terminal tower, and relates to the field of single-circuit cable winding towers. This seat formula cable termination tower includes body of the tower, its characterized in that: a plurality of supporting seats are arranged on the side face of the tower body, each supporting seat is provided with a pillar insulator, a connecting component and a seat type cable head, each supporting seat is arranged between every two adjacent supporting seats with a height difference, the top of each pillar insulator is connected with the supporting seat above, the bottom of each seat type cable head is connected with the supporting seat below, and the pillar insulator is connected with each seat type cable head through the connecting component. According to the utility model, the set supporting seat is arranged on the side face of the tower body, and the cable and the mechanism to be connected are fixed on the supporting seat in a set mode, so that the floor area of the cable terminal tower of the seat type is smaller, and the cable terminal tower is applicable to a narrow-position area.
Description
Technical Field
The utility model relates to the field of single-circuit cable winding towers, in particular to a 110kV (kilovolt) single-circuit flat-bed-free type cable terminal tower.
Background
The cable terminal support is a supporting platform for installing the cable terminal and the lightning arrester, the cable terminal support needs to be designed and constructed, and other facilities such as a working room for operation maintenance personnel are needed to be considered, so that land characterization is needed. The design of the cable terminal tower is to integrate an overhead wire with a cable terminal bracket, install the cable terminal bracket on the terminal tower, install equipment such as a lightning arrester on a terminal bracket (platform), arrange the electrical equipment on the platform according to the safe distance of an outdoor distribution device of a transformer substation, and then connect the cable with the overhead wire in a mode of insulating supporting leads.
At present, the existing seat type cable terminal tower has a large occupied area due to the cable platform, and when the tower is used in a city, if a crosswalk is occupied, the coordination difficulty is large. Therefore, in a narrow-positioned area, a dry-type flexible cable terminal tower is generally adopted at present, but because the failure rate of the outdoor dry-type flexible terminal of a 110kV and above cable is high, the outdoor dry-type flexible terminal of the 110kV and above cable of a national grid company system fails for 32 times only in 2015. The main reason for the failure is that the dry flexible terminal has the following disadvantages:
(1) The outdoor terminal installation regulation of the crosslinked polyethylene insulated power cable with rated voltage of 66kV-220kV (DL/T344-2010) 6.2 specifies that the cable is fixed in a cable terminal bracket and then the terminal is installed, but most of the current fully prefabricated dry type flexible terminals are hoisted to a terminal tower to be fixed after being installed below the terminal tower, and part of the terminal installation positions are higher, so that stress cones are easy to displace in the hoisting process;
(2) In order to reduce the power failure time or the connection is convenient during the voltage withstand test, part of terminals are directly subjected to the handover voltage withstand test after being installed on the ground, and then are hoisted to be on the tower, so that the voltage withstand test is lack of assessment due to the problems generated in the tower loading process;
(3) The problem of unstable fixation on the tower exists when the design of full prefabricated dry-type flexible terminal is under construction, and the fixed angle at terminal is different, exists terminal inclination and is close 90 degrees when extreme, and the terminal is easy to swing along with wind under this kind of circumstances, makes stress cone produce the displacement, further leads to breaking down.
Thus, the current state has set forth the requirement that "110kV and above voltage class cabling should not be selected for outdoor dry flex terminals".
Disclosure of Invention
Aiming at the defects in the prior art, the utility model solves the technical problems as follows: how to adapt the terminal tower to a confined area.
In order to achieve the purpose, the 110kV single-circuit flat-bed-free cable terminal tower comprises a tower body, wherein a plurality of supporting seats are arranged on the side face of the tower body, a pillar insulator, a connecting assembly and a seat type cable head are arranged between every two adjacent supporting seats with height difference, the top end of the pillar insulator is connected with one supporting seat, the bottom end of the seat type cable head is connected with the other supporting seat, and the pillar insulator is connected with the seat type cable head through the connecting assembly; a plurality of main cables are fixed on the tower body, one end of each main cable is connected with the ground, and the other end is connected with the seat type cable head; one end of the supporting seat far away from the tower body is provided with a wire tension string, and the bottom of the end is provided with a lightning arrester, and the wire tension string and the lightning arrester are respectively connected with the connecting component.
On the basis of the technical scheme, the connecting assembly is sequentially connected with the C-shaped equipment wire clamp, the T-shaped wire clamp and the copper-aluminum transition equipment wire clamp, one end of the C-shaped equipment wire clamp is connected with the post insulator, and one end of the copper-aluminum transition equipment wire clamp is connected with the seat-type cable head.
On the basis of the technical scheme, the wire tension string and the connecting assembly are connected through the jumper, one end of the jumper is connected with the wire tension string, and the other end of the jumper is connected with the T-shaped line clamp.
On the basis of the technical scheme, the lightning arrester is connected with the connecting assembly through the A-shaped equipment wire clamp and the lightning arrester lead wire, one end of the A-shaped equipment wire clamp is connected with the lightning arrester, and one end of the lightning arrester lead wire is connected with the T-shaped wire clamp.
On the basis of the technical scheme, each main cable is bound with a coaxial cable through a glass fiber adhesive tape.
On the basis of the technical scheme, the counting assembly is arranged on the tower body and comprises a counter support, a copper terminal and a lightning arrester counter are fixed on the counter support, a lightning arrester counter lead is connected between the copper terminal and the lightning arrester counter and the tower body respectively, and the lightning arrester counter lead is fixed on the counter support through a glass fiber tape.
On the basis of the technical scheme, the grounding box is arranged on the tower body, a grounding cable is connected between the grounding box and the seat type cable head along the main cable, and the grounding box is connected with a grounding piece at the bottom of the tower body through the grounding cable.
On the basis of the technical scheme, the main cable and the tower body are fixed through the cable anchor ear.
On the basis of the technical scheme, a cable protection tube is sleeved outside the main cable at the bottom of the tower body, the cable protection tube is fixed on the tower body through a cable protection tube hoop, and the cable protection tube is inserted into the ground.
On the basis of the technical scheme, the rear side of the tower body is provided with the crawling ladder, and the crawling ladder extends to the top of the tower body from the bottom of the tower body.
Compared with the prior art, the utility model has the advantages that:
according to the utility model, the set supporting seat is arranged on the side surface of the tower body, and the cable and the mechanism to be connected are fixed on the supporting seat in a set mode.
Further, compared with the existing dry-type flexible cable terminal tower, when the voltage of the cable is 110kV, the base-type cable terminal tower adopts a base-type terminal instead of a dry-type flexible terminal, so that the applicable voltage range of the base-type cable terminal tower is wider, and the problem of the dry-type flexible terminal at 110kV voltage is avoided.
Drawings
Fig. 1 is a schematic structural view of a seated cable termination tower according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view of FIG. 1 at B;
FIG. 4 is an enlarged view of FIG. 1 at C;
fig. 5 is a right side view of fig. 1.
In the figure: the lightning protector comprises a 1-pillar insulator, a 2-lightning arrester, a 3-seat type cable head, a 4-wire tension string, a 5-main cable, a 6-coaxial cable, a 7-cable anchor, an 8-grounding box, a 9-grounding cable, a 10-glass fiber tape, an 11-cable protection tube anchor, a 12-grounding piece, a 13-cable protection tube, a 14-ladder, a 15-C type equipment wire clamp, a 16-T type wire clamp, a 17-jumper wire, a 18-copper aluminum transition equipment wire clamp, a 19-A type equipment wire clamp, a 20-lightning arrester lead, a 21-copper terminal, a 22-lightning arrester counter, a 23-counter support, a 24-lightning arrester counter lead, a 25-support seat and a 26-tower body.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, the 110kV single-circuit flat-bed-free cable terminal tower in the embodiment of the utility model comprises a tower body 26 which is basically vertical in design, a plurality of basically transverse supporting seats 25 are arranged on the upper half part of the tower body 26, a pillar insulator 1, a connecting component and a seat-type cable head 3 are arranged between the adjacent supporting seats 25 with height difference, the top end of the pillar insulator 1 is connected with one supporting seat 25, the bottom end of the seat-type cable head 3 is connected with the other supporting seat 25, and the pillar insulator 1 and the seat-type cable head 3 are connected through the connecting component. A plurality of main cables 5 are fixed on the tower body 26, one end of each main cable 5 is connected with the ground, and the other end is connected with the seat type cable head 3. The support seat 25 is provided with wire strain insulator-string 4 far away from the one end of body of a tower 26, and this end bottom mounting has arrester 2, and wire strain insulator-string 4 and arrester 2 are connected with coupling assembling respectively.
As can be seen from the above, according to the present utility model, the main cable 5 and the mechanism to be connected are fixed to the support base 25 by the design method by providing the support base 25 on the side surface of the tower body 26, and the fixing work of the main cable 5 and the mechanism to be connected can be completed without constructing a cable platform having a large floor space, compared with the conventional seat-type cable terminal tower, so that the floor space of the seat-type cable terminal tower is smaller, and the seat-type cable terminal tower can be applied to a region having a narrow position.
Compared with the existing dry type flexible cable terminal tower, when the voltage of the cable is 110kV, the base type cable terminal tower adopts the base type terminal instead of the dry type flexible terminal, so that the applicable voltage range of the base type cable terminal tower is wider, and the problem of the dry type flexible terminal at 110kV voltage is avoided.
Preferably, as shown in fig. 2, the connecting assembly is sequentially connected with a C-shaped equipment wire clamp 15, a T-shaped wire clamp 16 and a copper-aluminum transition equipment wire clamp 18 from top to bottom, one end of the C-shaped equipment wire clamp 15 is connected with the post insulator 1, and one end of the copper-aluminum transition equipment wire clamp 18 is connected with the seat-type cable head 3.
The design has the advantages that: the post insulator 1 can be connected with the seat type cable head 3 through the C-shaped equipment wire clamp 15, the T-shaped wire clamp 16 and the copper-aluminum transition equipment wire clamp 18, and the insulation effect of the seat type cable head 3 is achieved.
Preferably, referring to fig. 2, the wire tension string 4 is connected with the connecting assembly through a jumper 17, one end of the jumper 17 is connected with the wire tension string 4, and the other end is connected with the T-shaped wire clamp 16.
The design has the advantages that: the connection between the wire tension string 4 and the seat type cable head 3 can be realized, and the wire tension string 4 effectively isolates the electrified wire from the ground and enables each wire to keep its own position.
Preferably, referring to fig. 2, the lightning arrester 2 is connected with the connecting assembly through an a-type equipment wire clamp 19 and an arrester lead 20, one end of the a-type equipment wire clamp 19 is connected with the lightning arrester 2, and one end of the arrester lead 20 is connected with the T-type wire clamp 16.
The design has the advantages that: can realize that arrester 2 and the connection of seat formula cable head 3, terminal tower self is higher, and arrester 2 can play the effect of lightning-arrest.
Preferably, as shown in fig. 3, each main cable 5 is bound with a coaxial cable 6 by means of a fiberglass tape 10.
The design has the advantages that: the main cable 5 is bound to the coaxial cable 6 because the main cable 5 needs to be connected up to a higher position along the bottom of the terminal tower, in order to avoid the potential for poor operation of the terminal tower due to too many and mess of wires.
Preferably, as shown in fig. 4, the lower half part of the tower body 26 is provided with a counting assembly, the counting assembly comprises a basically transverse counter support 23, the counter support 23 is fixedly provided with a copper terminal 21 and a lightning arrester counter 22, a lightning arrester counter lead 24 is connected between the copper terminal 21 and the lightning arrester counter 22 and the tower body 26 respectively, and the lightning arrester counter lead 24 is fixed on the counter support 23 through a glass fiber tape 10.
The design has the advantages that: in order to record the number of lightning strokes performed on the lightning arrester 2 of the terminal tower, which is an important basis for the person skilled in the art to check the lightning arrester 2, a counting assembly is mounted on the tower body 26.
Preferably, as shown in fig. 1, the lower half part of the tower body 26 is provided with a grounding box 8, a grounding cable 9 is connected between the grounding box 8 and the seat type cable head 3 along the main cable 5, and the grounding box 8 is connected with a grounding piece 12 at the bottom of the tower body 26 through the grounding cable 9.
The design has the advantages that: the terminal tower needs to be connected with a grounding cable 9 because of high voltage. To protect the ground cable 9, a ground box 8 is therefore provided on the tower 26.
Preferably, as shown in fig. 1, the main cable 5 and the tower body 26 are fixed by a cable anchor 7.
The design has the advantages that: the height of the terminal tower is higher, and the main cable 5 needs to be straightened from the ground to the height of the terminal tower, so as to avoid the main cable 5 from being displaced by natural environment, which leads to the main cable 5 to be failed, and therefore, the main cable 5 is fixed with the tower body 26 through the cable anchor ear 7.
Preferably, as shown in fig. 1, the main cable 5 at the bottom of the tower body 26 is sleeved with a cable protection tube 13, the cable protection tube 13 is fixed on the tower body 26 through a cable protection tube hoop 11, and the cable protection tube 13 is inserted into the ground.
The design has the advantages that: the ground is moist, and the ground can ponding in rainy days, in order to avoid cable and water contact for a long time, lead to the damage of cable, consequently be provided with cable protection tube 13 for the protection cable.
Preferably, as shown in fig. 5, a ladder 14 is mounted on the rear side of the tower 26, the ladder 14 extending from the bottom of the tower 26 to the top of the tower 26.
The design has the advantages that: to facilitate later maintenance of the terminal tower by those skilled in the art, a ladder stand 14 is mounted on the tower body 26.
The utility model is not limited to the above-mentioned best mode, any person can obtain other various products under the teaching of the utility model, but any change in shape or structure is within the scope of protection of the utility model, and all the technical schemes are the same or similar to the utility model.
Claims (10)
1. 110kV single-circuit does not have platform seat formula cable terminal tower, including body of a tower (26), its characterized in that: a plurality of supporting seats (25) are arranged on the side face of the tower body (26), each supporting seat (25) with a height difference is provided with a pillar insulator (1), a connecting component and a seat type cable head (3), the top end of the pillar insulator (1) is connected with one supporting seat (25), the bottom end of the seat type cable head (3) is connected with the other supporting seat (25), and the pillar insulator (1) is connected with the seat type cable head (3) through the connecting component; a plurality of main cables (5) are fixed on the tower body (26), one end of each main cable (5) is connected with the ground, and the other end is connected with the seat type cable head (3); one end of the supporting seat (25) far away from the tower body (26) is provided with a wire tension string (4), and the bottom of the end is provided with a lightning arrester (2), and the wire tension string (4) and the lightning arrester (2) are respectively connected with the connecting component.
2. The 110kV single-turn flat-bed-free cable termination tower of claim 1, wherein: the connecting assembly is sequentially connected with a C-shaped equipment wire clamp (15), a T-shaped wire clamp (16) and a copper-aluminum transition equipment wire clamp (18), one end of the C-shaped equipment wire clamp (15) is connected with the post insulator (1), and one end of the copper-aluminum transition equipment wire clamp (18) is connected with the seat type cable head (3).
3. The 110kV single-turn flat-bed-free cable termination tower of claim 2, wherein: the wire tension string (4) is connected with the connecting component through a jumper wire (17), one end of the jumper wire (17) is connected with the wire tension string (4), and the other end of the jumper wire is connected with the T-shaped wire clamp (16).
4. The 110kV single-turn flat-bed-free cable termination tower of claim 2, wherein: the lightning arrester is characterized in that the lightning arrester (2) is connected with the connecting assembly through an A-shaped equipment wire clamp (19) and a lightning arrester lead wire (20), one end of the A-shaped equipment wire clamp (19) is connected with the lightning arrester (2), and one end of the lightning arrester lead wire (20) is connected with the T-shaped wire clamp (16).
5. The 110kV single-turn flat-bed-free cable termination tower of claim 1, wherein: each main cable (5) is bound with a coaxial cable (6) through a glass fiber adhesive tape (10).
6. The 110kV single-turn flat-bed-free cable termination tower of claim 1, wherein: install the counting assembly on body of a tower (26), the counting assembly includes counter support (23), is fixed with copper terminal (21) and arrester counter (22) on it, is connected with arrester counter lead wire (24) between copper terminal (21) and arrester counter (22) and body of a tower (26) respectively, and arrester counter lead wire (24) are fixed in on counter support (23) through glass adhesive tape (10).
7. The 110kV single-turn flat-bed-free cable termination tower of claim 1, wherein: install earthing box (8) on body of a tower (26), be connected with earthing cable (9) along main cable (5) between earthing box (8) and seat formula cable head (3), earthing box (8) link to each other with ground connection spare (12) of body of a tower (26) bottom through earthing cable (9).
8. The 110kV single-turn flat-bed-free cable termination tower of claim 1, wherein: the main cable (5) and the tower body (26) are fixed through a cable hoop (7).
9. The 110kV single-turn flat-bed-free cable termination tower of claim 1, wherein: the main cable (5) at the bottom of the tower body (26) is sleeved with a cable protection tube (13), the cable protection tube (13) is fixed on the tower body (26) through a cable protection tube hoop (11), and the cable protection tube (13) is inserted into the ground.
10. The 110kV single-turn flat-bed-free cable termination tower of claim 1, wherein: a ladder stand (14) is mounted on the rear side of the tower body (26), and the ladder stand (14) extends from the bottom of the tower body (26) to the top of the tower body (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320520554.9U CN219535583U (en) | 2023-03-14 | 2023-03-14 | 110kV single-circuit flat-bed-free type cable terminal tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320520554.9U CN219535583U (en) | 2023-03-14 | 2023-03-14 | 110kV single-circuit flat-bed-free type cable terminal tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219535583U true CN219535583U (en) | 2023-08-15 |
Family
ID=87632436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320520554.9U Active CN219535583U (en) | 2023-03-14 | 2023-03-14 | 110kV single-circuit flat-bed-free type cable terminal tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219535583U (en) |
-
2023
- 2023-03-14 CN CN202320520554.9U patent/CN219535583U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100913253B1 (en) | Power transmission rail track installation method that use catenary fixing device that fix electric wire so that miniaturization of straight tower may be available and catenary fixing device of polymer arm insulators | |
| CN209924551U (en) | Double-loop cable terminal tower | |
| CN104242208B (en) | A kind of overhead transmission line double back cable terminal steel pipe pole | |
| CN204089116U (en) | A kind of overhead transmission line double back cable terminal steel pipe pole | |
| CN219535583U (en) | 110kV single-circuit flat-bed-free type cable terminal tower | |
| CN212478731U (en) | Three-loop cable terminal iron tower with high-altitude area maintenance platform | |
| CN217282133U (en) | Tower arrangement structure on high tension cable | |
| CN215580282U (en) | Three-link device for leading overhead line to ground | |
| CN221031765U (en) | 220KV double-circuit short type cable terminal rod | |
| CN111864546A (en) | Power transformation framework | |
| CN219138564U (en) | Cable terminal pole | |
| CN206400166U (en) | Cable fitting more than a kind of double cable OPGW of transformer station's single pole | |
| CN205863857U (en) | A kind of stand alone type cable platform | |
| CN215889532U (en) | Cable changes built on stilts two feedback pole towers | |
| CN115967017B (en) | Compact distribution outgoing line arrangement structure | |
| CN215185797U (en) | Ground connection downlead device of lightning conductor | |
| CN108418167B (en) | Same-tower four-loop single-wire cable terminal tower | |
| CN216599019U (en) | High-voltage reactive compensation composite device | |
| CN216157294U (en) | Cable terminal tower and power transmission and transformation system | |
| CN210404682U (en) | Lightning conductor mounting rack | |
| CN216109990U (en) | Cable terminal tower and power transmission and transformation system | |
| CN216649176U (en) | Supplementary installation device of cable terminal platform on transmission line | |
| CN115296242B (en) | Suspension type mounting structure for connecting cable of cable terminal tower and overhead wire | |
| CN217590185U (en) | Gantry structure of single-loop overhead outbound cable | |
| CN215419539U (en) | 110kV cable oil type outdoor terminal pole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |