CN216084460U - Large-span duplex large-tonnage double-bundle conductor strain insulator string - Google Patents
Large-span duplex large-tonnage double-bundle conductor strain insulator string Download PDFInfo
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- CN216084460U CN216084460U CN202122579174.6U CN202122579174U CN216084460U CN 216084460 U CN216084460 U CN 216084460U CN 202122579174 U CN202122579174 U CN 202122579174U CN 216084460 U CN216084460 U CN 216084460U
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Abstract
A large-span duplex large-tonnage dual-split conductor strain insulator string comprises an insulator hardware string body, wherein the insulator hardware string body adopts a dual-hanging-point duplex structure and comprises a low-voltage-end hardware fitting, an insulating part and a high-voltage-end hardware fitting which are sequentially connected; the low-voltage end hardware fitting comprises two groups of parallel U-shaped suspension loop hardware fittings, U-shaped suspension loops, an adjusting plate I, a parallel hanging plate I, a PT hanging plate, a traction plate and a socket hanging plate which are connected in sequence; the insulating part comprises two groups of parallel disk-shaped insulator strings; the high-voltage end hardware fitting comprises two groups of ball head hanging plates, a parallel hanging plate II, a trapezoidal link plate, a right-angle hanging plate, an adjusting plate II, a U-shaped hanging plate and a strain clamp which are arranged in parallel and connected in sequence. The large-span duplex large-tonnage dual-split conductor strain insulator string constructed by the utility model can meet the wire hanging requirement of the dual-split large-tension conductor, improve the safety coefficient of the strain insulator hardware string, improve the safe reliability of the line operation and ensure the long-term safe and stable operation of the electric power facility.
Description
Technical Field
The utility model relates to the field of transmission line accessories, in particular to a large-span duplex large-tonnage dual-bundled conductor strain insulator string.
Background
With the increase of the transmission capacity of a high-voltage transmission line, the number of split conductors of a large-span line is increased, and with the increase of the span distance across rivers, the breaking force of the conductors adopted in the large-span line is increased, the requirement on the load grade of a tension-resistant hardware string is increased, when a double-split conductor needs to adopt a duplex large-tonnage tension-resistant hardware string, no related string exists at present, the long-term safe, stable and reliable operation of an electric power facility cannot be realized, and the development of the high-voltage transmission line is severely restricted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a large-span duplex large-tonnage dual-bundled-conductor strain insulator string which is safe, reliable and convenient to install.
The technical scheme adopted by the utility model for solving the technical problems is that the large-span duplex large-tonnage dual-split conductor strain insulator string comprises an insulator hardware string body, wherein the insulator hardware string body adopts a dual-hanging-point duplex structure and comprises a low-voltage end hardware fitting, an insulating part and a high-voltage end hardware fitting which are sequentially connected;
the low-voltage end hardware fitting comprises two groups of U-shaped hanging ring hardware fittings, U-shaped hanging rings, an adjusting plate I, a parallel hanging plate I, a PT hanging plate, a traction plate and a socket head hanging plate which are arranged in parallel and connected in sequence, wherein the front end of the low-voltage end hardware fitting is anchored on an iron tower cross arm through 2U-shaped hanging ring hardware fittings, and the rear end of the low-voltage end hardware fitting is connected with an insulating part through the socket head hanging plate;
the insulating part comprises two groups of parallel disc-shaped insulator strings, the front ends of the disc-shaped insulator strings are connected with the low-voltage end hardware socket hanging plate, and the rear ends of the disc-shaped insulator strings are connected with the high-voltage end hardware;
the high-voltage end hardware fitting comprises two groups of ball head hanging plates, parallel hanging plates II, trapezoidal connecting plates, right-angle hanging plates, adjusting plates II, U-shaped hanging plates and strain clamps which are arranged in parallel and connected in sequence, the trapezoidal connecting plates are one in two groups, the front end of the high-voltage end hardware fitting is connected with an insulating part through the ball head hanging plates, and the rear end of the high-voltage end hardware fitting is anchored with a large-span double-split conductor through 2 strain clamps.
Furthermore, each pair of the insulating parts adopts a plurality of 550 kN-grade large-tonnage disc-shaped insulators, and the distance S1 between the insulators is more than or equal to 600 mm.
Furthermore, the front side of the trapezoidal yoke plate is matched with the insulating part with the spacing of S1 in a spacing mode, and the rear side of the trapezoidal yoke plate is matched with the strain clamp with the spacing of S2 in a spacing mode.
The large-span duplex large-tonnage dual-split conductor strain insulator string constructed by the utility model can meet the wire hanging requirement of the dual-split large-tension conductor, improve the safety coefficient of the strain insulator hardware string, improve the safe reliability of the line operation and ensure the long-term safe and stable operation of the electric power facility.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
in the figure: 1. the socket comprises a low-voltage end hardware fitting, a U-shaped link 12, a U-shaped link 13, adjusting plates I and 14, parallel hanging plates I and 15, PT hanging plates, a traction plate 16 and a socket hanging plate 17; 2. the cable comprises an insulating part, 21 disk-shaped insulation, 3 high-voltage end hardware, 31 ball head hanging plates, 32 parallel hanging plates II and 33 trapezoidal connecting plates, 34 right-angle hanging plates, 35 adjusting plates II and 36U-shaped hanging plates, and 37 strain clamps.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the insulator hardware string of the present embodiment adopts a double-hanging-point duplex structure, and is composed of 3 parts, namely, a low-voltage end hardware 1, an insulating component 2, and a high-voltage end hardware 3, which are connected in sequence.
The low-voltage end fitting 1 comprises two groups of U-shaped suspension ring fittings 11, U-shaped suspension rings 12, an adjusting plate I13, a parallel suspension plate I14, a PT suspension plate 15, a traction plate 16 and a socket suspension plate 17 which are arranged in parallel and connected in sequence, the front end of the low-voltage end fitting is anchored on an iron tower cross arm through the 2U-shaped suspension ring fittings 11, and the rear end of the low-voltage end fitting is connected with an insulating part 2 through the socket suspension plate 17.
The insulating part 2 comprises two groups of parallel disc-shaped insulators 21 which are connected in series, the front end of the insulating part is connected with the low-voltage end hardware fitting socket hanging plate 17, and the rear end of the insulating part is connected with the high-voltage end hardware fitting 3.
The high-voltage end hardware fitting 3 comprises two groups of ball head hanging plates 31, parallel hanging plates II 32, trapezoidal link plates 33, right-angle hanging plates 34, adjusting plates II 35, U-shaped hanging plates 36 and strain clamps 37 which are arranged in parallel and connected in sequence, wherein the trapezoidal link plates 33 are shared by the two groups. The front end of the high-voltage end fitting 3 is connected with the insulating part 2 through the ball head hanging plate 31, and the rear end of the high-voltage end fitting is anchored with a large-span double-split conductor through 2 strain clamps 37.
The insulating part 2 adopts 2 pairs, each pair adopts a plurality of 550 kN-grade large-tonnage disc-shaped insulators 21, and the distance S1 between the insulators is not less than 600 mm.
The 2 strain clamps 37 are configured to clamp a large-span double-split conductor, the distance S2 between the strain clamps is the split distance of the conductor, and the value is related to the specification and the outer diameter of the conductor, the small-section conductor is 400mm, and the large-section conductor is 450mm/500 mm.
The front side of the trapezoidal yoke plate 33 is matched to the pitch of the insulating members 2 at the pitch S1, and the rear side is matched to the pitch of the strain clamps 37 at the pitch S2.
The large-span duplex large-tonnage dual-split conductor strain insulator string constructed by the utility model can meet the wire hanging requirement of the dual-split large-tension conductor, improve the safety coefficient of the strain insulator hardware string, improve the safe reliability of the line operation and ensure the long-term safe and stable operation of the electric power facility.
Various modifications and variations of the present invention may be made by those skilled in the art, and they are still within the scope of the present invention, provided they are within the scope of the claims of the present invention and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (3)
1. The utility model provides a stride across big pair large-tonnage two split conductor strain insulator string greatly, includes insulator gold utensil cluster body, its characterized in that: the insulator hardware string body adopts a double-hanging-point duplex structure and comprises a low-voltage end hardware fitting, an insulating part and a high-voltage end hardware fitting which are sequentially connected;
the low-voltage end hardware fitting comprises two groups of U-shaped hanging ring hardware fittings, U-shaped hanging rings, an adjusting plate I, a parallel hanging plate I, a PT hanging plate, a traction plate and a socket head hanging plate which are arranged in parallel and connected in sequence, wherein the front end of the low-voltage end hardware fitting is anchored on an iron tower cross arm through 2U-shaped hanging ring hardware fittings, and the rear end of the low-voltage end hardware fitting is connected with an insulating part through the socket head hanging plate;
the insulating part comprises two groups of parallel disc-shaped insulator strings, the front ends of the disc-shaped insulator strings are connected with the low-voltage end hardware socket hanging plate, and the rear ends of the disc-shaped insulator strings are connected with the high-voltage end hardware;
the high-voltage end hardware fitting comprises two groups of ball head hanging plates, parallel hanging plates II, trapezoidal connecting plates, right-angle hanging plates, adjusting plates II, U-shaped hanging plates and strain clamps which are arranged in parallel and connected in sequence, the trapezoidal connecting plates are one in two groups, the front end of the high-voltage end hardware fitting is connected with an insulating part through the ball head hanging plates, and the rear end of the high-voltage end hardware fitting is anchored with a large-span double-split conductor through 2 strain clamps.
2. The large-span duplex large-tonnage dual-bundled conductor strain insulator string according to claim 1, characterized in that: each pair of the insulating parts adopts a plurality of 550 kN-grade large-tonnage disc-shaped insulators, and the distance S1 between the insulators is more than or equal to 600 mm.
3. The large-span duplex large-tonnage dual-bundled conductor strain insulator string according to claim 2, characterized in that: the front side of the trapezoidal yoke plate is matched with the insulating part with the distance of S1, and the rear side of the trapezoidal yoke plate is matched with the strain clamp with the distance of S2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122579174.6U CN216084460U (en) | 2021-10-26 | 2021-10-26 | Large-span duplex large-tonnage double-bundle conductor strain insulator string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122579174.6U CN216084460U (en) | 2021-10-26 | 2021-10-26 | Large-span duplex large-tonnage double-bundle conductor strain insulator string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216084460U true CN216084460U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122579174.6U Active CN216084460U (en) | 2021-10-26 | 2021-10-26 | Large-span duplex large-tonnage double-bundle conductor strain insulator string |
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| Country | Link |
|---|---|
| CN (1) | CN216084460U (en) |
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2021
- 2021-10-26 CN CN202122579174.6U patent/CN216084460U/en active Active
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