CN111478266A - High-voltage power tower cable dry-type terminal sitting type supporting device - Google Patents
High-voltage power tower cable dry-type terminal sitting type supporting device Download PDFInfo
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- CN111478266A CN111478266A CN202010347564.8A CN202010347564A CN111478266A CN 111478266 A CN111478266 A CN 111478266A CN 202010347564 A CN202010347564 A CN 202010347564A CN 111478266 A CN111478266 A CN 111478266A
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- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000008602 contraction Effects 0.000 abstract description 6
- 230000015556 catabolic process Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/80—Discharge by conduction or dissipation, e.g. rods, arresters, spark gaps
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses a high-voltage power tower cable dry-type terminal sitting type supporting device which comprises a first supporting rod and a second supporting rod which are fixed on a cross arm of a high-voltage power tower, a vertical fixing rod fixedly connected to the side part of the second supporting rod, and a clamp assembly connected to the vertical fixing rod and used for clamping a high-voltage cable, wherein the first supporting rod and the second supporting rod are fixed on the cross arm of the high-voltage power tower; the first support rod is perpendicular to the cross arm, and the first support rod and the second support rod are parallel and arranged at intervals; the vertical fixing rod is perpendicular to the second supporting rod and extends downwards vertically. The invention adopts the flexible fixing device, reduces the damage of the thermal expansion and cold contraction stress to the cable terminal, and the single-core cable does not form a closed magnetic circuit, thereby avoiding the damage to the cable.
Description
Technical Field
The invention relates to a high-voltage power tower cable dry-type terminal sitting type supporting device, and belongs to the technical field of high voltage electricity.
Background
The application of high-voltage cables serving as electric energy transmission carriers in the field of power transmission is increased year by year, the high-voltage power transmission lines have cables and overhead mixed lines, and due to the fact that the appearance time of high-voltage power towers is short, after the erected cables run for a period of time, cable terminal supporting structures of the high-voltage power towers expose some technical problems.
Rigid support adopted by the cable terminal lacks thermal expansion elasticity, the weight of the cable is large, and the problems of cable terminal fracture, cable terminal joint oil leakage and the like are caused when the cable is deformed and shaken; the closed loop is rigidly supported at the cable terminal, and a single-core cable forms a closed magnetic circuit, so that electromagnetic eddy current is easily generated, the phenomena of cable burn, breakdown and the like are caused, the damage of facilities is caused, and great potential safety hazards exist.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-voltage power tower cable dry-type terminal sitting type supporting device, a flexible fixing device is adopted, the damage of thermal expansion and cold contraction stress to a cable terminal is reduced, a single-core cable does not form a closed magnetic circuit, and the damage to the cable is avoided.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a high-voltage power tower cable dry-type terminal sitting type supporting device comprises a first supporting rod and a second supporting rod which are fixed on a cross arm of a high-voltage power tower, a vertical fixing rod fixedly connected to the side part of the second supporting rod, and a clamp assembly connected to the vertical fixing rod and used for clamping a high-voltage cable;
the first support rod is perpendicular to the cross arm, and the first support rod and the second support rod are parallel and arranged at intervals;
the vertical fixing rod is perpendicular to the second supporting rod and extends downwards vertically.
As a further improvement of the invention, the first support rod and the second support rod are both made of channel steel; the vertical fixing rod is made of angle steel;
the first supporting rod and the second supporting rod are fixedly connected with the cross arm through welding or bolts.
As a further improvement of the invention, the first support rod and the second support rod are fixedly connected with a lightning arrester base; the lightning arrester base and the high-voltage cable are located on two sides of the cross arm.
As a further improvement of the invention, the upper part of the vertical fixing rod is fixedly connected with the side part of the second supporting rod through a fixing bolt.
As a further improvement of the invention, the clamp assembly comprises a first fixing clamp, a second fixing clamp and a corner clamp which are sequentially connected to the vertical fixing rod from top to bottom;
the first fixing clamp and the second fixing clamp are both fixedly connected with a vertical fixing rod, and the corner clamp is rotatably connected with the vertical fixing rod through a rotating shaft;
the first fixing clamp, the second fixing clamp and the corner clamp are all made of insulating resin materials.
As a further improvement of the present invention, the first fixing clip includes a left clip piece, a right clip piece, and a fastening bolt;
the fastening bolt penetrates through the side parts of the left clamping piece and the right clamping piece to butt the left clamping piece and the right clamping piece together; the tail end of the fastening bolt is fixedly connected to the vertical fixing rod;
the opposite sides of the left clamping piece and the right clamping piece are respectively provided with a semicircular groove, and the two semicircular grooves are butted to form a circular clamping hole for clamping a high-voltage cable; and a rubber pad is padded in the circular clamping hole.
As a further improvement of the present invention, the number of the fastening bolts on the first fixing clip is two;
the first fixing clamp and the second fixing clamp are identical in structure.
As a further improvement of the present invention, the corner clamp includes two clamping pieces fastened by a bolt, semicircular grooves provided on opposite sides of the two clamping pieces, a rubber pad padded between the clamping pieces and the high voltage cable, and a rotating shaft fixed at an outer side portion of one of the clamping pieces; the lower part of the vertical fixed rod is fixedly provided with a connecting lug; the rotating shaft is sleeved in the hole of the connecting lug to form rotating connection.
As a further improvement of the invention, the lightning arrester base comprises a lower fixing plate fixedly connected to the first supporting rod and the second supporting rod, a telescopic rod with the lower end fixedly connected to the lower fixing plate, and an upper fixing plate fixed at the upper end of the telescopic rod;
and the lightning arrester body is fixedly arranged on the upper fixing plate.
As a further improvement of the present invention, a high voltage cable terminal of the high voltage cable is located above the second support bar;
the upper end of the high-voltage cable terminal is connected with a cable core connector, and the upper end of the lightning arrester body is connected with an upper connector of the lightning arrester body;
and a copper bar is connected between the cable core joint and the upper joint of the lightning arrester body.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the invention provides a sitting type supporting device for a flexible cable terminal for erecting a high-voltage cable for a high-voltage power tower, which has the following characteristics: 1 the sitting type supporting device is connected with the lightning arrester base into a whole, the lightning arrester and the cable terminal have good integral stability, small occupied space and more stable electrical performance; 2 an open space is formed between the two flat support rods of the sitting type supporting device, namely the supporting device is a non-closed rigid device, a single-core cable does not form a closed magnetic circuit, and the phenomena of cable burn, breakdown and the like are avoided; 3 the sitting type supporting device is provided with a corner clamp for flexibly and fixedly supporting the high-voltage cable, when the high-voltage cable receives the thermal expansion and cold contraction force, the flexible fixed support can automatically adjust the component force, and the damage of the thermal expansion and cold contraction stress to the cable terminal is reduced; 4, the height of the lightning arrester base can be adjusted by a telescopic rod, and the lightning arrester base is applicable to equipment with different voltage grades and different models; the device is convenient to disassemble and is suitable for cable towers of different models.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic top view of the second embodiment of the present invention;
FIG. 3 is a schematic side view of the second embodiment of the present invention;
FIG. 4 is a schematic structural view of the clamp assembly of the present invention;
FIG. 5 is a schematic view of the construction of the retaining clip of the present invention;
fig. 6 is a schematic view of the structure of the present invention for mounting the arrester;
fig. 7 is a schematic structural view of a lightning arrester base according to the present invention;
fig. 8 is a schematic structural view of a connecting copper bar between the lightning arrester and the cable terminal according to the present invention.
Wherein:
10 high tension cable, 11 cross arms, 12 first bracing piece, 13 second bracing pieces, 14 vertical dead lever, 15 arrester bases, 16 fixing bolt, 17 arrester bodies, 18 high tension cable terminals, 21 first fixing clip, 22 second fixing clip, 23 corner clip, 24 axis of rotation, 51 copper bar, 52 cable core joint, 53 arrester body top connection, 61 left clamping piece, 62 right clamping piece, 63 fastening bolt, 64 semicircular groove, 65 cushion, 151 bottom fixing plate, 152 telescopic link, 153 top fixing plate.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting.
Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Example one
As shown in fig. 1, a high voltage power tower cable dry type terminal sitting type supporting device comprises a first supporting rod 12 and a second supporting rod 13 fixed on a cross arm 11 of a high voltage power tower, a vertical fixing rod 14 fixedly connected to the side of the second supporting rod 13, and a clamp assembly connected to the vertical fixing rod 14 for clamping a high voltage cable 10;
the first support rod 12 is perpendicular to the cross arm 11, and the first support rod 12 and the second support rod 13 are parallel and arranged at intervals;
the vertical fixing rod 14 is perpendicular to the second supporting rod 13, and the vertical fixing rod 14 extends vertically and downwards.
Further, the first support rod 12 and the second support rod 13 are both made of channel steel; the vertical fixing rod 14 is made of angle steel;
the first support rod 12 and the second support rod 13 are fixedly connected with the cross arm 11 through welding or bolts.
This embodiment is applicable to high voltage power tower and uses, is open space between the bracing piece of two platykurtics, and this strutting arrangement is non-closed rigid device promptly, and single core cable does not form closed magnetic circuit, can not cause phenomenons such as cable burn puncture to produce.
Example two
As shown in fig. 2-8, a high voltage power tower cable dry type terminal sitting type supporting device comprises a first supporting rod 12 and a second supporting rod 13 fixed on a cross arm 11 of a high voltage power tower, a vertical fixing rod 14 fixedly connected to the side of the second supporting rod 13, and a clamp assembly connected to the vertical fixing rod 14 for clamping a high voltage cable 10;
the first support rod 12 is perpendicular to the cross arm 11, and the first support rod 12 and the second support rod 13 are parallel and arranged at intervals;
the vertical fixing rod 14 is perpendicular to the second supporting rod 13, and the vertical fixing rod 14 extends vertically and downwards.
Further, the first support rod 12 and the second support rod 13 are both made of channel steel; the vertical fixing rod 14 is made of angle steel;
the first support rod 12 and the second support rod 13 are fixedly connected with the cross arm 11 through welding or bolts.
The first support rod 12 and the second support rod 13 are fixedly connected with a lightning arrester base 15; the lightning arrester base 15 and the high-voltage cable 10 are located on two sides of the cross arm 11.
Further, the upper part of the vertical fixing rod 14 is fixedly connected with the side part of the second supporting rod 13 through a fixing bolt 16.
Further, the clamp assembly comprises a first fixing clamp 21, a second fixing clamp 22 and a corner clamp 23 which are sequentially connected to the vertical fixing rod 14 from top to bottom;
the first fixing clamp 21 and the second fixing clamp 22 are both fixedly connected with the vertical fixing rod 14, and the corner clamp 23 is rotatably connected with the vertical fixing rod 14 through a rotating shaft 24;
the first fixing clamp 21, the second fixing clamp 22 and the corner clamp 23 are all made of insulating resin materials, and the phenomenon that a single-core cable and a metal clamp form a closed magnetic circuit to cause cable burn and breakdown is avoided.
Further, the first fixing clip 21 includes a left jaw 61, a right jaw 62, and a fastening bolt 63;
the fastening bolt 63 penetrates through the side parts of the left clamping piece 61 and the right clamping piece 62 to butt the left clamping piece 61 and the right clamping piece 62 together; the tail end of the fastening bolt 63 is fixedly connected to the vertical fixing rod 14;
all be provided with semi-circular groove 64 on the offside of left clamping piece 61 and right clamping piece 62, two semi-circular groove 64 docks and forms the circular double-layered hole of centre gripping high tension cable 10, the downthehole pad of circular double-layered is equipped with cushion 65.
Further, the number of the fastening bolts 63 on the first fixing clip 21 is two;
the first fixing clip 21 and the second fixing clip 22 have the same structure.
Further, the corner clamp 23 includes two clamping pieces fastened by bolts, semicircular grooves provided on opposite sides of the two clamping pieces, a rubber pad 65 padded between the clamping pieces and the high voltage cable 10, and a rotating shaft 24 fixed to an outer side portion of one of the clamping pieces; the lower part of the vertical fixing rod 14 is fixedly provided with a connecting lug; the rotating shaft 24 is sleeved in the hole of the connecting lug to form rotating connection.
All the rubber mats 65 are clamped between the first fixing clamp 21, the second fixing clamp 22, the corner clamp 23 and the high-voltage cable, so that the cable outer sheath can be protected from being scratched and damaged, and the situation that the cable core is grounded and burned due to the damage of the cable outer sheath is avoided.
Further, the lightning arrester base 15 includes a lower fixing plate 151 fixedly connected to the first support rod 12 and the second support rod 13, an expansion link 152 fixedly connected to the lower fixing plate 151 at a lower end, and an upper fixing plate 153 fixed to an upper end of the expansion link 152;
the arrester body 17 is fixedly mounted on the upper fixing plate 153.
Further, the high voltage cable terminal 18 of the high voltage cable 10 is located above the second support bar 13;
the upper end of the high-voltage cable terminal 18 is connected with a cable core connector 52, and the upper end of the arrester body 17 is connected with an arrester body upper connector 53;
and a copper bar 51 is connected between the cable core connector 52 and the lightning arrester body upper connector 53.
The embodiment has the following characteristics: the sitting type supporting device is connected with the lightning arrester base into a whole, the lightning arrester and the cable terminal are good in overall stability, small in occupied space and more stable in electrical performance; an open space is formed between the two flat support rods of the sitting type supporting device, namely the supporting device is a non-closed rigid device, a single-core cable does not form a closed magnetic circuit, and the phenomena of cable burn, breakdown and the like are avoided; the sitting type supporting device is provided with a corner clamp for flexibly and fixedly supporting the high-voltage cable, when the high-voltage cable receives expansion with heat and contraction with cold, the flexible fixing support can automatically adjust component force, and damage of the expansion with heat and contraction with cold to a cable terminal is reduced; the height of the lightning arrester base can be adjusted through the telescopic rod, and the lightning arrester base is applicable to equipment with different voltage levels and different models; the device is convenient to disassemble and is suitable for cable towers of different models.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious as a person skilled in the art to combine several aspects of the invention. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a high voltage electricity tower cable dry-type terminal sitting posture strutting arrangement which characterized in that: the device comprises a first supporting rod (12) and a second supporting rod (13) which are fixed on a cross arm (11) of a high-voltage power tower, a vertical fixing rod (14) which is fixedly connected to the side part of the second supporting rod (13), and a clamp assembly which is connected to the vertical fixing rod (14) and used for clamping a high-voltage cable (10);
the first supporting rod (12) is perpendicular to the cross arm (11), and the first supporting rod (12) and the second supporting rod (13) are arranged in parallel at intervals;
the vertical fixing rod (14) is perpendicular to the second supporting rod (13), and the vertical fixing rod (14) extends vertically downwards.
2. The high voltage power tower cable dry termination sitting support of claim 1, wherein: the first supporting rod (12) and the second supporting rod (13) both adopt channel steel; the vertical fixing rod (14) adopts angle steel;
the first supporting rod (12) and the second supporting rod (13) are fixedly connected with the cross arm (11) through welding or bolts.
3. The high voltage power tower cable dry termination sitting support of claim 2, wherein: the first support rod (12) and the second support rod (13) are fixedly connected with a lightning arrester base (15); the lightning arrester base (15) and the high-voltage cable (10) are located on two sides of the cross arm (11).
4. The high voltage power tower cable dry termination sitting support of claim 3, wherein: the upper part of the vertical fixing rod (14) is fixedly connected with the side part of the second supporting rod (13) through a fixing bolt (16).
5. The high voltage power tower cable dry termination sitting support of claim 4, wherein: the clamp assembly comprises a first fixing clamp (21), a second fixing clamp (22) and a corner clamp (23) which are sequentially connected to the vertical fixing rod (14) from top to bottom;
the first fixing clamp (21) and the second fixing clamp (22) are both fixedly connected with a vertical fixing rod (14), and the corner clamp (23) is rotatably connected with the vertical fixing rod (14) through a rotating shaft (24);
the first fixing clamp (21), the second fixing clamp (22) and the corner clamp (23) are all made of insulating resin materials.
6. The high voltage power tower cable dry termination sitting support of claim 5, wherein: the first fixing clamp (21) comprises a left clamping piece (61), a right clamping piece (62) and a fastening bolt (63);
the fastening bolt (63) penetrates through the side parts of the left clamping piece (61) and the right clamping piece (62) to butt the left clamping piece (61) and the right clamping piece (62) together; the tail end of the fastening bolt (63) is fixedly connected to the vertical fixing rod (14);
the opposite sides of the left clamping piece (61) and the right clamping piece (62) are respectively provided with a semi-circular groove (64), and the two semi-circular grooves (64) are butted to form a circular clamping hole for clamping the high-voltage cable (10); and a rubber pad (65) is padded in the circular clamp hole.
7. The high voltage power tower cable dry termination sitting support of claim 6, wherein: the number of the fastening bolts (63) on the first fixing clamp (21) is two;
the first fixing clamp (21) and the second fixing clamp (22) are identical in structure.
8. The high voltage power tower cable dry termination sitting support of claim 6, wherein: the corner clamp (23) comprises two clamping pieces which are fastened and connected through bolts, semicircular grooves which are arranged on opposite sides of the two clamping pieces, a rubber pad (65) which is arranged between the clamping pieces and the high-voltage cable (10) in a cushioning mode, and a rotating shaft (24) which is fixed on the outer side portion of one clamping piece; the lower part of the vertical fixing rod (14) is fixedly provided with a connecting lug; the rotating shaft (24) is sleeved in the hole of the connecting lug to form rotating connection.
9. The high voltage power tower cable dry termination sitting support of any one of claims 3-8, wherein: the lightning arrester base (15) comprises a lower fixing plate (151) fixedly connected to the first supporting rod (12) and the second supporting rod (13), an expansion rod (152) with the lower end fixedly connected to the lower fixing plate (151), and an upper fixing plate (153) fixed to the upper end of the expansion rod (152);
and the lightning arrester body (17) is fixedly arranged on the upper fixing plate (153).
10. The high voltage power tower cable dry termination sitting support of claim 9, wherein: the high-voltage cable terminal (18) of the high-voltage cable (10) is positioned above the second support bar (13);
the upper end of the high-voltage cable terminal (18) is connected with a cable core joint (52), and the upper end of the lightning arrester body (17) is connected with a lightning arrester body upper joint (53);
and a copper bar (51) is connected between the cable core connector (52) and the upper connector (53) of the lightning arrester body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010347564.8A CN111478266A (en) | 2020-04-28 | 2020-04-28 | High-voltage power tower cable dry-type terminal sitting type supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010347564.8A CN111478266A (en) | 2020-04-28 | 2020-04-28 | High-voltage power tower cable dry-type terminal sitting type supporting device |
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| Publication Number | Publication Date |
|---|---|
| CN111478266A true CN111478266A (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010347564.8A Pending CN111478266A (en) | 2020-04-28 | 2020-04-28 | High-voltage power tower cable dry-type terminal sitting type supporting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111478266A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112165059A (en) * | 2020-09-21 | 2021-01-01 | 重庆首页工程设计咨询有限责任公司 | Power tower cable terminal mounting rack |
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Application publication date: 20200731 |