CN215185797U - Ground connection downlead device of lightning conductor - Google Patents
Ground connection downlead device of lightning conductor Download PDFInfo
- Publication number
- CN215185797U CN215185797U CN202120582712.4U CN202120582712U CN215185797U CN 215185797 U CN215185797 U CN 215185797U CN 202120582712 U CN202120582712 U CN 202120582712U CN 215185797 U CN215185797 U CN 215185797U
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- lightning
- conductor
- downlead
- ground connection
- lightning conductor
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- 239000004020 conductor Substances 0.000 title claims abstract description 102
- 239000012212 insulator Substances 0.000 claims description 50
- 238000009413 insulation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a technical field of power supply line discloses a ground connection downlead device of lightning conductor, including being used for the insulating support who is connected with lightning conductor and shaft tower respectively, insulating support connection has the ground connection downlead, and the one end of ground connection downlead is connected with the lightning conductor, and the other end is equipped with the earthing terminal, and the earthing terminal ground connection is connected, and the axial projection of insulating support keeps away from the setting each other with the axial projection of earthing terminal. The utility model discloses a ground connection downlead device, lightning current do not lead to the ground through the shaft tower, avoid lightning current to cause the influence to the equipment on the shaft tower, can make the lightning current keep away from the platform district like the place simultaneously, reduce the influence of interim ground potential lifting to equipment.
Description
Technical Field
The utility model relates to a technical field of power supply line especially relates to a ground connection downlead device of lightning conductor.
Background
The overhead ground wire is a facility used for power transmission and distribution lines, can effectively reduce the influence of direct lightning on the lines, and is more commonly used for lines with the voltage level of 35kV and above. However, the 10kV distribution network line has a complex structure, the insulation level of the line is the lowest in the power transmission and distribution line, the operation and maintenance difficulty is high, and the distribution network is often the most prone to faults, such as insulator flashover, disconnection or tripping and the like, so that the power supply reliability is seriously influenced. In the current society, the daily life of people is influenced by frequent faults of distribution network lines, and overhead ground wires are erected on some 10kV distribution network lines to reduce the influence of lightning strikes on the distribution network lines.
The traditional overhead ground wire requires manual grounding to be arranged at a certain distance between the head end and the tail end and between lines. Generally, the grounding down lead is erected downwards along a tower, and the grounding device is arranged below the tower. If the tower is provided with equipment, the original tower equipment is directly used for grounding, so that the overhead ground wire and the equipment are grounded together, or an artificial earth screen is arranged at a position close to the equipment.
But this can affect the safe operation of the device. When the overhead ground wire and the equipment are grounded together, the lightning waves are transmitted to the tail end of the line along the overhead ground wire and are led to the grounding device through the equipment downlead, and when the lightning waves flow through the downlead, the potential of the downlead can be temporarily and greatly improved, counterattack can be caused, and the equipment is damaged. If the earthing device is in the vicinity of the equipment counterpoise, the overhead arrester causes the potential of the equipment counterpoise to rise, which likewise causes countermeasures.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the utility model provides a ground connection downlead device of lightning conductor, lightning current is not through the shaft tower ground of leading-in, avoids lightning current to cause the influence to the equipment on the shaft tower, can make lightning current keep away from the platform district like the place simultaneously, reduces the influence of temporary ground potential lifting to equipment.
In order to achieve the above object, the utility model provides a ground connection downlead of lightning conductor, including being used for the insulating support who is connected with lightning conductor and shaft tower respectively, insulating support connection has the ground connection downlead, the one end of ground connection downlead with the lightning conductor is connected, and the other end is equipped with the earthing terminal, earthing terminal ground connection is connected, the axial projection of insulating support with the setting is kept away from each other to the axial projection of earthing terminal.
As a preferred scheme, the insulating support includes bracing piece and the insulating connecting portion that are used for being connected with the shaft tower, insulating connecting portion install in the top of bracing piece, insulating connecting portion respectively with the bracing piece the lightning conductor with the ground connection downlead is connected.
As the preferred scheme, insulating connecting portion include lightning-arrest insulator and ground connection insulator, the both ends of lightning-arrest insulator respectively with the bracing piece with the lightning conductor is connected, the both ends of ground connection insulator respectively with the bracing piece with the ground connection downlead is connected.
Preferably, the ground down conductor includes a down conductor, one end of the down conductor is connected to the ground insulator, and the down conductor is connected to the lightning conductor through a connecting wire.
As a preferred scheme, the two lightning insulators are respectively installed on the supporting rod, the grounding insulator is installed between the two lightning insulators, and the two lightning wires connected with the two lightning insulators are connected through the connecting wire.
Preferably, the connecting wire comprises a first connecting wire and a second connecting wire, two ends of the first connecting wire are respectively connected with the down lead and the second connecting wire, and the second connecting wire is respectively connected with the two lightning conductors connected with the lightning insulators.
Preferably, the top end of the supporting rod is abutted against the connecting two lines.
Preferably, the two lightning insulators are arranged oppositely.
Preferably, the grounding insulator is hinged to the supporting rod.
The embodiment of the utility model provides a ground connection downlead device of lightning conductor compares with prior art, and its beneficial effect lies in: the lightning conductor and the tower are respectively connected to the insulating support, and due to the insulating property of the insulating support, the lightning conductor and the tower are prevented from being connected and conducting, and lightning current in the lightning conductor is prevented from being conducted along the tower. The ground connection downlead is connected with lightning conductor and ground connection respectively, and the lightning current in the lightning conductor is along the conduction of ground connection downlead, and the lightning current of saying the lightning conductor through the ground connection downlead introduces the ground, simultaneously because the axial projection of insulating support with the axial projection of earthing terminal is kept away from the setting each other, makes the lightning current of conducting to ground or earthing device through the downlead keep away from the shaft tower, avoids the lightning current of earthing terminal to arouse temporary electric potential lifting and arouse the thunder and lightning counterattack to lead to equipment to cause the damage.
Drawings
Fig. 1 is a front view of the structure of the embodiment of the present invention.
Fig. 2 is a side view of the structure of the embodiment of the present invention.
In the figure:
10. a lightning conductor; 11. a pole tower;
20. an insulating support; 21. a support bar;
30. an insulating connection portion; 31. a lightning-protection insulator; 32. a grounding insulator;
40. a down conductor; 41. a ground terminal; 42. a down conductor; 43. connecting a line; 44. connecting the two lines; 45. and (4) wire clamping.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are used in the present invention as indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "connected," "connected," and "fixed" used in the present invention should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral body; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1 to 2, the utility model discloses the ground connection downlead 40 device of lightning conductor 10 of the preferred embodiment, including being used for the insulating support 20 of being connected with lightning conductor 10 and shaft tower 11 respectively, insulating support 20 is connected with ground connection downlead 40, and the one end of ground connection downlead 40 is connected with lightning conductor 10, and the other end is equipped with earthing terminal 41, and earthing terminal 41 ground connection is connected, and the axial projection of insulating support 20 and the axial projection of earthing terminal 41 keep away from each other and set up.
The utility model discloses a 40 devices on ground connection downlead of lightning conductor 10 connects respectively on insulating support 20 through lightning conductor 10 and shaft tower 11, because insulating support 20's insulating nature avoids taking place between lightning conductor 10 and the shaft tower 11 to be connected electrically conductively, avoids the lightning current in the lightning conductor 10 to conduct along shaft tower 11. The grounding down conductor 40 is respectively connected with the lightning conductor 10 and the ground, lightning current in the lightning conductor 10 is conducted along the grounding down conductor 40, the lightning current of the lightning conductor 10 is introduced into the ground through the grounding down conductor 40, meanwhile, as the axial projection of the insulating support 20 and the axial projection of the grounding end 41 are arranged away from each other, the lightning current conducted to the ground or a grounding device through the down conductor 42 is far away from the tower 11, and the damage to equipment caused by lightning counterattack due to temporary potential rise caused by the lightning current of the grounding end 41 is avoided.
Further, as shown in fig. 1 to 2, the insulating support 20 includes a support rod 21 for connecting with the tower 11 and an insulating connecting portion 30, the insulating connecting portion 30 is mounted on the top of the support rod 21, and the insulating connecting portion 30 is connected with the support rod 21, the lightning conductor 10 and the ground down conductor 40 respectively. Specifically, the support rod 21 is made of an insulating material. Because lightning current can pass through the lightning conductor 10 and the grounding downlead 40, the insulating connecting parts 30 are connected with the lightning conductor 10 and the grounding downlead 40, the insulating connecting parts 30 and the tower 11 are respectively positioned at two ends of the supporting rod 21, so that the lightning conductor 10 and the grounding downlead 40 are far away from the tower 11, a larger insulating distance is reserved between the lightning conductor 10 and the grounding downlead 40 and the tower 11, and the lightning current is prevented from flowing into the tower 11 and further damaging equipment on the tower 11.
Further, as shown in fig. 1 to 2, the insulating connecting portion 30 includes a lightning insulator 31 and a grounding insulator 32, both ends of the lightning insulator 31 are respectively connected to the support rod 21 and the lightning conductor 10, and both ends of the grounding insulator 32 are respectively connected to the support rod 21 and the grounding down conductor 40. The lightning conductor 10 and the grounding downlead 40 are respectively fixed on the support rod 21 through the lightning insulators 31 and the grounding insulators 32, the creepage distance between the lightning conductor 10 and the grounding downlead 40 and the tower 11 is increased, the insulating performance of the grounding downlead 40 device is improved, and the line safety is improved.
Further, as shown in fig. 1 to 2, the down conductor 40 includes a down conductor 42, one end of the down conductor 42 is connected to the grounding insulator 32, and the down conductor 42 is connected to the lightning conductor 10 through a connecting wire. The down lead 42 is connected with the lightning conductor 10 through a connecting wire, lightning current on the lightning conductor 10 can be conducted to the down lead 42 through the connecting wire, the installation structure is simple, the manufacturing is local, and the installation efficiency is high.
Further, as shown in fig. 1 to 2, two lightning insulators 31 are respectively installed on the support rod 21, the grounding insulator 32 is installed between the two lightning insulators 31, the lightning wires 10 connected to the two lightning insulators 31 are connected by a connection line, so that the adjacent lightning wires 10 are conducted, and the lightning current on the lightning wire 10 can be conducted to the ground along the down conductor 42 or to the adjacent lightning wire 10. The two lightning insulators 31 are arranged on the support rod 21, so that the grounding down conductor 40 device can be matched with a plurality of towers 11 for use, the lightning conductors 10 between the towers 11 can be connected to form a part of a distribution network system, and the integral connection is improved.
Further, as shown in fig. 1 to 2, two lightning insulators 31 are disposed opposite to each other. Specifically, one end of each of the two insulators is connected to the support rod 21, the other end of each of the two insulators is connected to a different lightning conductor 10, and the ends of the two insulators connected to the lightning conductor 10 are away from each other. The lightning insulators 31 are oppositely arranged, so that the maximum insulation distance is formed between two adjacent lightning conductors 10, and the insulation safety of the grounding down conductor 40 device is effectively improved.
Further, as shown in fig. 1 to 2, the connecting line includes a connecting line 43 and a connecting line 44, both ends of the connecting line 43 are respectively connected to the down conductor 42 and the connecting line 44, and the connecting line 44 is respectively connected to the lightning conductor 10 connected to the two lightning insulators 31. Specifically, the connecting wire 43 is connected to the connecting wire 44 by a wire clamp 45. The two connecting wires 44 are used for connecting different lightning conductor 10 on the support rod 21 and conducting lightning current between different lightning conductor 10. The first connecting line 43 and the second connecting line 44 are used for conducting lightning current between the lightning conductor 10 and the down conductor 42, and the first connecting line 43 and the second connecting line 44 are used in combination for conducting lightning current.
Further, as shown in fig. 1 to 2, the top end of the supporting rod 21 abuts against the connecting line 44. Because the both ends of connecting the two-wire 44 are connected different lightning conductor 10 respectively, make and switch on between the lightning conductor 10, and then connect two-wire 44 and have the lightning current to pass through, support the connection two-wire 44 through the top of bracing piece 21, make the connection two-wire 44 keep away from shaft tower 11 as the support simultaneously to connecting two-wire 44, increase insulation distance improves insulating security.
Further, as shown in fig. 1 to 2, the grounding insulator 32 is hinged to the support rod 21. One end of the down conductor 42 is connected to the grounding insulator 32, and the other end grounding end 41 is connected to the ground or the grounding device. The grounding insulator 32 is hinged to the supporting rod 21, so that the angle between the grounding insulator 32 and the supporting rod 21 can be adjusted, the larger the angle between the grounding insulator 32 and the supporting rod 21 is, the farther the grounding position connected with the grounding end 41 or the distance between the grounding device and the tower 11 is, the damage to equipment caused by temporary and large-scale lifting caused by lightning current of the down lead 42 is avoided, the temporary potential lifting of an underground equipment ground net of the tower 11 can be effectively reduced, and the lightning current counterattack probability is reduced.
To sum up, the embodiment of the utility model provides a ground connection downlead 40 device of lightning conductor 10, through installing lightning conductor 10 and downlead 42 in the one end of insulating support 20, the other end and the shaft tower 11 of insulating support 20 are connected, make the lightning current on the lightning conductor 10 pass through the leading-in earth or the earthing device of downlead 42, earthing terminal 41 keeps away from shaft tower 11 and sets up, prevent that lightning current from following the leading-in earth or the earthing device of shaft tower 11, avoid leading to equipment to damage to take place and the counterattack of lightning current because of the temporary electric potential that downlead 42 increased substantially.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a ground connection downlead device of lightning conductor which characterized in that: including being used for the insulating support who is connected with lightning conductor and shaft tower respectively, insulating support is connected with the ground connection downlead, the one end of ground connection downlead with the lightning conductor is connected, and the other end is equipped with the earthing terminal, the earthing terminal ground connection, the axial projection of insulating support with the axial projection of earthing terminal keeps away from the setting each other.
2. The ground down conductor arrangement of a lightning conductor according to claim 1, characterized in that: the insulating support comprises a supporting rod and an insulating connecting portion, the supporting rod is used for being connected with a tower, the insulating connecting portion is installed at the top of the supporting rod, and the insulating connecting portion is respectively connected with the supporting rod, the lightning conductor and the grounding down lead.
3. The ground down conductor arrangement of a lightning conductor according to claim 2, characterized in that: the insulating connecting part comprises a lightning-protection insulator and a grounding insulator, the two ends of the lightning-protection insulator are respectively connected with the supporting rod and the lightning conductor, and the two ends of the grounding insulator are respectively connected with the supporting rod and the grounding down lead.
4. The ground down conductor arrangement of a lightning conductor according to claim 3, characterized in that: the ground connection downlead includes the downlead, the one end of downlead connect in ground connection insulator, the downlead pass through the connecting wire with the lightning conductor is connected.
5. The ground down conductor arrangement of a lightning conductor according to claim 4, characterized in that: the two lightning protection insulators are respectively installed on the supporting rod, the grounding insulator is installed between the two lightning protection insulators, and the two lightning protection insulators are respectively connected with the lightning conductor through the connecting wire.
6. The ground down conductor arrangement of a lightning conductor according to claim 5, characterized in that: the connecting wire is including connecting one line and connecting the two lines, connect one line both ends and connect respectively the downlead with it connects to connect the two lines, it connects two respectively to connect the two lines the lightning-arrest insulator is connected the lightning conductor.
7. The ground down conductor arrangement of a lightning conductor according to claim 6, characterized in that: the top end of the supporting rod is propped against the connecting two lines.
8. The ground down conductor arrangement of a lightning conductor according to claim 5, characterized in that: the two lightning insulators are oppositely arranged.
9. The ground down conductor arrangement of a lightning conductor according to claim 5, characterized in that: the grounding insulator is hinged to the supporting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120582712.4U CN215185797U (en) | 2021-03-22 | 2021-03-22 | Ground connection downlead device of lightning conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120582712.4U CN215185797U (en) | 2021-03-22 | 2021-03-22 | Ground connection downlead device of lightning conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215185797U true CN215185797U (en) | 2021-12-14 |
Family
ID=79351888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120582712.4U Active CN215185797U (en) | 2021-03-22 | 2021-03-22 | Ground connection downlead device of lightning conductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215185797U (en) |
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2021
- 2021-03-22 CN CN202120582712.4U patent/CN215185797U/en active Active
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