CN214786436U - 220kV cable terminal tower adopting horizontal cross arm to support wires - Google Patents

220kV cable terminal tower adopting horizontal cross arm to support wires Download PDF

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Publication number
CN214786436U
CN214786436U CN202023072099.6U CN202023072099U CN214786436U CN 214786436 U CN214786436 U CN 214786436U CN 202023072099 U CN202023072099 U CN 202023072099U CN 214786436 U CN214786436 U CN 214786436U
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China
Prior art keywords
tower
wire
cross arm
support
terminal
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CN202023072099.6U
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Chinese (zh)
Inventor
沈建国
张彤
潘峰
黄聪
郭勇
包玉南
李君斌
丁磊
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China Energy Engineering Group Zhejiang Eleteric Power Design Institute Co ltd
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China Energy Engineering Group Zhejiang Eleteric Power Design Institute Co ltd
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Abstract

The utility model discloses an adopt horizontal cross arm to support 220kV cable terminal tower of wire, include the cable terminal tower body that unites overhead line and cable terminal bracket as an organic whole, cable terminal tower body mainly includes the body of the tower and sets up tower head and tower leg in body of the tower upper and lower both sides respectively, the tower head includes ground wire support and wire cross arm that arrange from top to bottom in proper order, and be provided with the insulator chain that is used for connecting six-phase wire on the wire cross arm; the lightning arrester tower is characterized in that a lightning arrester support is transversely arranged on the lower side of the tower body, lightning arresters are respectively arranged on the left side and the right side of the lightning arrester support, a tower leg support is transversely arranged at the joint of the tower leg and the tower body, insulator strings for connecting six-phase wires are respectively arranged on the left side and the right side of the tower leg support, and a terminal is arranged in the middle of the tower leg support; the wire cross arm includes cross arm and wire down cross arm in the wire, the wire that sets gradually by last to down.

Description

220kV cable terminal tower adopting horizontal cross arm to support wires
Technical Field
The utility model relates to a transmission of electricity distribution technical field, concretely relates to adopt 220kV cable termination tower of horizontal cross arm supporting conductor.
Background
The cable terminal tower is a junction tower of an overhead line and a cable, integrates the overhead line and a cable terminal bracket into a whole, installs the cable terminal bracket on the terminal tower, and installs equipment such as a cable terminal, a lightning arrester and the like on a terminal platform. In the design of a cable terminal tower, attention needs to be paid to meeting electrical clearance (controlling wire windage yaw), reasonably arranging components to exert bearing potential, and meanwhile, facilitating installation, operation and maintenance and the like.
Traditional cable termination tower, the mode that supports the lead wire through horizontal insulator links together cable and overhead line, and the way that adopts horizontal insulator to support the wire has some problems in the in-service use: 1) the insulator is connected by bolts at one end, the wind vibration effect of the insulator is obvious, the flange is improved to be connected by a flange, the weight of the flange is larger, and meanwhile, the insulator is obvious in sagging; 2) the horizontal insulator is adopted, and because the bending rigidity of the insulator is small, people cannot be detected during transportation, otherwise, the deformation is too large; 3) the end wire clamp is easy to loosen under the action of wind, once the end wire clamp loosens, people cannot directly reach the loosened position to repair the end wire clamp, and therefore the operation risk of a line is high; 4) because the support needs to be connected out from the tower body and is not at the same angle, inconvenience can be brought to the operation and inspection personnel when going up the tower.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a make things convenient for fortune to examine personnel and reach the fixed point and overhaul, reduce the wire windage yaw, effectively reduce the 220kV cable termination tower of the horizontal cross arm supporting wire of adoption of occurence of failure probability.
The utility model aims at completing the technical scheme that a 220kV cable terminal tower adopting horizontal cross arms to support wires comprises a cable terminal tower body integrating overhead wires and a cable terminal bracket, wherein the cable terminal tower body mainly comprises a tower body, and tower heads and tower legs which are respectively arranged at the upper side and the lower side of the tower body, the tower heads comprise a ground wire bracket and a wire cross arm which are sequentially arranged from top to bottom, and the wire cross arm is provided with an insulator string for connecting six-phase wires; the lower side of the tower body is transversely provided with an arrester support, the left side and the right side of the arrester support are respectively provided with an arrester, the connecting part of the tower legs and the tower body is transversely provided with a tower leg support, the left side and the right side of the tower leg support are respectively provided with an insulator string used for connecting six-phase wires, and a terminal is arranged in the middle of the tower leg support.
Further, the wire cross arm includes cross arm, cross arm and wire down cross arm in the wire that sets gradually from top to bottom on the wire, just the length of cross arm is greater than the length of cross arm and wire down cross arm in the wire on the wire, the bottom of cross arm and wire down cross arm all is provided with the insulator chain that is used for connecting six looks wires on the wire.
Furthermore, a fixing bracket used for reinforcing the grounding wire of the terminal is arranged on the mounting position of the tower leg corresponding to the terminal.
The utility model has the advantages of: the utility model adopts the horizontal cross arm, the maintainers can directly reach the fixed point, and the transportation and the inspection are convenient; the hard cross arm can make the conducting wire belt tension, and prevent the wind deflection swing phenomenon; the new tower type can be applied to a windy area, the application range is expanded, and the method has great practical significance and technical innovation for developing related researches.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "lateral", "vertical", and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, the 220kV cable terminal tower using horizontal cross arm to support wires of the present invention comprises a cable terminal tower body integrating an overhead wire and a cable terminal bracket, wherein the cable terminal tower body mainly comprises a tower body 1, and a tower head 2 and tower legs 3 respectively arranged at the upper and lower sides of the tower body 1, the tower head 2 comprises a ground wire bracket 4 and a wire cross arm which are sequentially arranged from top to bottom, and the wire cross arm is provided with an insulator string 6 for connecting a six-phase wire 5; the lower side of the tower body 1 is transversely provided with an arrester support 7, the left side and the right side of the arrester support 7 are respectively provided with an arrester 8, the joint of the tower leg 3 and the tower body 1 is transversely provided with a tower leg support 9, the left side and the right side of the tower leg support 9 are respectively provided with an insulator string 6 used for connecting six-phase wires, and a terminal 10 is arranged in the middle of the tower leg support 9.
Referring to fig. 1, the wire cross arm comprises an upper wire cross arm 11, a middle wire cross arm 12 and a lower wire cross arm 13 which are sequentially arranged from top to bottom, the length of the upper wire cross arm 11 is greater than that of the middle wire cross arm 12 and the lower wire cross arm 13, and the bottoms of the upper wire cross arm 11 and the lower wire cross arm 13 are respectively provided with an insulator string 6 for connecting six-phase wires 5. The tower legs 3 are provided with fixing brackets 14 for reinforcing the grounding wire of the terminal at the mounting positions corresponding to the terminal 10.
Cable termination tower adopt horizontal cross arm supporting conductor, compare horizontal support insulator, horizontal cross arm belongs to lattice formula component, has great rigidity, can play hard support to the wire, warp less, conveniently transport and examine personnel and reach the fixed point and overhaul. Six looks wires all adopt insulator string to link to each other with tower leg and cross arm, compare in traditional support insulator, the tip fastener is difficult to not hard up, and wire itself can take tension, the windage yaw swing range of effective reduction to reduce accident and take place the probability, can be applied to big wind zone, thereby make the range of application of this cable termination tower expand.
The specific embodiments described herein are merely illustrative of the principles of the present invention and its efficacy, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.

Claims (3)

1. The utility model provides an adopt 220kV cable termination tower of horizontal cross arm supporting wire, includes the cable termination tower body that closes overhead line and cable termination support as an organic whole, its characterized in that: the cable terminal tower body comprises a tower body, and a tower head and tower legs which are respectively arranged on the upper side and the lower side of the tower body, wherein the tower head comprises a ground wire support and a lead cross arm which are sequentially arranged from top to bottom, and an insulator string used for connecting six-phase leads is arranged on the lead cross arm; the lower side of the tower body is transversely provided with an arrester support, the left side and the right side of the arrester support are respectively provided with an arrester, the connecting part of the tower legs and the tower body is transversely provided with a tower leg support, the left side and the right side of the tower leg support are respectively provided with an insulator string used for connecting six-phase wires, and a terminal is arranged in the middle of the tower leg support.
2. The 220kV cable termination tower with horizontal cross-arm support conductors of claim 1, wherein: the wire cross arm includes cross arm and cross arm under the wire in cross arm, the wire in the wire that sets gradually by last to down, just the length of cross arm is greater than cross arm and wire under the wire in the wire length, the bottom of cross arm all is provided with the insulator chain that is used for connecting six looks wires under cross arm and the wire on the wire.
3. The 220kV cable termination tower with horizontal cross-arm support wires of claim 1 or 2, wherein: and the tower legs are provided with fixing supports for reinforcing the grounding wire of the terminal at the mounting positions corresponding to the terminal.
CN202023072099.6U 2020-12-18 2020-12-18 220kV cable terminal tower adopting horizontal cross arm to support wires Active CN214786436U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023072099.6U CN214786436U (en) 2020-12-18 2020-12-18 220kV cable terminal tower adopting horizontal cross arm to support wires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023072099.6U CN214786436U (en) 2020-12-18 2020-12-18 220kV cable terminal tower adopting horizontal cross arm to support wires

Publications (1)

Publication Number Publication Date
CN214786436U true CN214786436U (en) 2021-11-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023072099.6U Active CN214786436U (en) 2020-12-18 2020-12-18 220kV cable terminal tower adopting horizontal cross arm to support wires

Country Status (1)

Country Link
CN (1) CN214786436U (en)

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