CN213717594U

CN213717594U - Lightning protection device

Info

Publication number: CN213717594U
Application number: CN202021940641.2U
Authority: CN
Inventors: 颜守章; 郑建烨; 蔡振海; 蔡俊明; 林宝朋; 陈杰
Original assignee: Fuzhou One Sun Power Consulting Co ltd
Current assignee: Fuzhou One Sun Power Consulting Co ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-07-16
Anticipated expiration: 2030-09-08

Abstract

The utility model relates to a lightning protection device belongs to the technical field of electric power system lightning protection. The wire pole comprises a first hoop, a fixing device, a first cross arm and a second cross arm which are sequentially arranged on the wire pole, wherein a ground wire fitting is arranged on the first hoop and is connected with the ground through a steel strand; the lightning arrester comprises a fixing device and a first cross arm, wherein the fixing device is fixedly connected with an insulator on the first cross arm, the second cross arm is fixedly connected with an arrester, the top end of the insulator on the fixing device is fixedly connected with an A phase line, the top end of the insulator on the first cross arm is fixedly connected with a BC phase line, the top end of the arrester is fixedly connected with a lead, the A phase line and the BC phase line are respectively connected with the lead through jumper wires, and the bottom end of the arrester is connected with the ground through a ground wire. The utility model provides a prior art's lightning protection device at the poor scheduling problem of strong thunder district lightning protection effect.

Description

Lightning protection device

Technical Field

The utility model relates to a lightning protection device belongs to the technical field of electric power system lightning protection.

Background

The electric power system is easy to cause faults when being struck by lightning, the conventional method is to additionally arrange a lightning protection overvoltage protector in a circuit, and practices prove that the lightning protection overvoltage protector greatly reduces the circuit fault rate caused by the lightning stroke, but cannot meet the safe use requirement of the circuit in a strong lightning area, and the lightning protection device which can be applied to the strong lightning area is needed for ensuring reliable power supply.

The patent document with the prior art application number of CN201920765925.3 discloses an arrester, which comprises a base and an arrester body arranged on the base, wherein one end of the base is provided with a mounting groove along the axial direction of the base, the side wall of the mounting groove is provided with a circular truncated cone-shaped mounting hole, a movable steel ball is arranged in the mounting hole, the outer side wall of the base is sleeved with a mounting ring, an elastic part for driving the mounting ring to slide along the axial direction of the base in a limiting way is arranged between the mounting ring and the base, the arrester body is connected with a connecting seat, the outer side wall of the connecting seat is provided with a circular groove, when the connecting seat is inserted in the mounting groove, the steel ball is limited in the circular groove and is abutted against the inner wall of the mounting ring, the inner wall of one end of the mounting ring is provided with a limiting groove, and the end of the mounting ring, which is far away from the arrester body, the steel ball is positioned between the mounting hole and the limiting groove.

Above-mentioned reference example and prior art's lightning protection device is at the poor scheduling problem of strong thunder district lightning protection effect, consequently, the utility model provides a lightning protection device is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

In order to overcome current lightning protection device shortcoming such as strong thunder district lightning protection effect is poor, the utility model designs a lightning protection device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a lightning protection device comprises a first hoop, a fixing device, a first cross arm and a second cross arm which are sequentially arranged on a telegraph pole, wherein a ground wire hardware fitting is arranged on the first hoop and is connected with the ground through a steel strand, so that the purpose of primary lightning protection is achieved; the lightning arrester comprises a fixing device and a first cross arm, wherein the fixing device is fixedly connected with an insulator on the first cross arm, the second cross arm is fixedly connected with an arrester, the top end of the insulator on the fixing device is fixedly connected with an A phase line, the top end of the insulator on the first cross arm is fixedly connected with a BC phase line, the top end of the arrester is fixedly connected with a lead, the A phase line and the BC phase line are respectively connected with the lead through jumper wires, and the bottom end of the arrester is connected with the ground through a ground wire to achieve the purpose of secondary lightning protection.

The fixing device comprises a second hoop and a third hoop which are fixedly connected to the telegraph pole, and the third hoop is arranged below the second hoop; the third staple bolt passes through bracing and second staple bolt fixed connection, increases fixed effect, be provided with the crosspiece on the second staple bolt, insulator fixed connection is on the crosspiece.

And two ends of the jumper wire are respectively connected with the aluminum core of the phase line A or the phase line BC and the lead aluminum core.

The top end of the lightning arrester is connected with the lead wire aluminum core.

The BC phase line is two independent cables arranged on two sides of the telegraph pole, the leads are three independent cables, and the A phase line and the BC phase line are connected with the corresponding leads respectively.

Compared with the prior art the utility model discloses there are following characteristics and beneficial effect: the utility model has the advantages of reasonable design, job stabilization nature is high, through ground wire gold utensil and steel strand wires ground connection, can tentatively realize the lightning protection, and link to each other A phase line, BC phase line and lead wire through the jumper wire, the lead wire with continuous arrester, can realize dual lightning protection through the arrester with the leading-in ground of electric current when meetting strong thunder, both cooperate the use, greatly increased lightning protection performance to can reach the operation requirement in strong thunder district.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a right side view of the overall structure of the present invention;

fig. 3 is a partially enlarged view of B in fig. 2 according to the present invention.

Wherein the reference numerals are: 10. a utility pole; 11. a first hoop; 12. a fixing device; 121. a second hoop; 122. a third hoop; 123. bracing; 124. a crosspiece; 13. a first cross arm; 14. a second cross arm; 20. a ground wire hardware fitting; 21. steel strand wires; 30. a cable; 31. a phase line; 32. a BC phase line; 33. a lead wire; 34. a jumper wire; 35. a ground line; 41. an insulator; 42. an arrester.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 3, the lightning protection device of the present embodiment includes a first hoop 11, a fixing device 12, a first cross arm 13 and a second cross arm 14, which are sequentially disposed on a utility pole 10, wherein a ground wire fitting 20 is disposed on the first hoop 11, and the ground wire fitting 20 is connected with the ground through a steel strand 21, so as to achieve the purpose of primary lightning protection; the insulator 41 is fixedly connected to the fixing device 12 and the first cross arm 13, the lightning arrester 42 is fixedly connected to the second cross arm 14, the top end of the insulator 41 on the fixing device 12 is fixedly connected with the A phase line 31, the top end of the insulator 41 on the first cross arm 13 is fixedly connected with the BC phase line 32, the top end of the lightning arrester 42 is fixedly connected with the lead 33, the A phase line 31 and the BC phase line 32 are respectively connected with the lead 33 through the jumper wires 34, and the bottom end of the lightning arrester 42 is connected with the ground through the grounding wire 35, so that the purpose of secondary lightning protection is achieved.

Further, the fixing device 12 includes a second hoop 121 and a third hoop 122 fixedly connected to the utility pole 10, and the third hoop 122 is disposed below the second hoop 121; the third hoop 122 is fixedly connected with the second hoop 121 through the inclined strut 123, so that the fixing effect is improved, the crosspiece 124 is arranged on the second hoop 121, and the insulator 41 is fixedly connected to the crosspiece 124.

Further, the two ends of the jumper wire 34 are respectively connected with the aluminum core of the a-phase line 31 or the BC-phase line 32 and the aluminum core of the lead 33.

Further, the top end of the arrester 42 is connected to the aluminum core of the lead wire 33.

Further, the BC phase lines 32 are two independent cables disposed on both sides of the utility pole 10, the leads 33 are three independent cables, and the a phase lines 31 and the BC phase lines 32 are connected to the corresponding leads 33, respectively.

The utility model discloses a theory of operation: firstly, a ground wire fitting 20 is arranged on a first hoop 11 at the top end of the telegraph pole 10, the ground wire fitting 20 is connected with the ground through a steel strand 21, and when the first hoop 11 or the ground wire fitting 20 is hit by a lightning, current can be transmitted to the ground along the steel strand 21, so that preliminary lightning protection is realized;

secondly, the A phase line 31 and the BC phase line 32 are respectively connected with the leads 33 through the jumper wires 34, when the line is struck by lightning, the current is conducted to the corresponding leads 33 through the jumper wires 34, then the lightning arrester 42 is communicated through the high voltage of the lightning strike, and the current of the leads is conducted to the ground through the grounding wire 35 to complete secondary lightning protection;

on the circuit of whole electric wire netting, there are many wire poles 10, so the electric current on the lead wire 33 can be spread into ground into respectively by the earth connection 35 on many wire poles 10, makes the utility model discloses satisfy strong thunder ware's user demand.

It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. A lightning protection device, its characterized in that: the lightning protection device comprises a first hoop (11), a fixing device (12), a first cross arm (13) and a second cross arm (14) which are sequentially arranged on a telegraph pole (10), wherein a ground wire fitting (20) is arranged on the first hoop (11), and the ground wire fitting (20) is connected with the ground through a steel strand (21) so as to achieve the purpose of primary lightning protection;

fixedly connected with insulator (41) on fixing device (12) and first cross arm (13), fixedly connected with arrester (42) on second cross arm (14), insulator (41) top fixedly connected with A phase line (31) on fixing device (12), insulator (41) top fixedly connected with BC phase line (32) on first cross arm (13), arrester (42) top fixedly connected with lead wire (33), A phase line (31) and BC phase line (32) are connected with lead wire (33) through jumper wire (34) respectively, arrester (42) bottom is connected with ground through earth connection (35) again, reaches the purpose of secondary lightning protection.

2. A lightning protection device according to claim 1, characterized in that: the fixing device (12) comprises a second hoop (121) fixedly connected to the telegraph pole (10) and a third hoop (122), and the third hoop (122) is arranged below the second hoop (121); third staple bolt (122) are through bracing (123) and second staple bolt (121) fixed connection, increase fixed effect, be provided with crosspiece (124) on second staple bolt (121), insulator (41) fixed connection is on crosspiece (124).

3. A lightning protection device according to claim 1, characterized in that: and two ends of the jumper wire (34) are respectively connected with the aluminum core of the phase line A (31) or the phase line BC (32) and the aluminum core of the lead (33).

4. A lightning protection device according to claim 1, characterized in that: the top end of the lightning arrester (42) is connected with the lead (33) aluminum core.

5. A lightning protection device according to claim 1, characterized in that: BC phase line (32) is two independent cables that set up in wire pole (10) both sides, lead wire (33) are three independent cables, A phase line (31) and BC phase line (32) connect corresponding lead wire (33) respectively.