CN204441845U - Lightning arrester - Google Patents

Abstract

A lightning protection device, including a fixed hoop, the fixed hoop is connected to the wiring support iron through the support iron, the wiring support iron is connected with the lightning protection ground wire, the lightning protection ground wires on each lightning protection device are grounded at intervals, and the wiring support iron is set There are holes, and the supporting iron is L-shaped or U-shaped. The wiring support iron is L-shaped, and there are two or more fixed hoops. The fixed hoop is fixed and installed on the pole through a nut. The support iron and the fixed hoop are welded, and the support iron and the wiring support iron Through screw connection, the length of the brace iron can be determined according to the shielding angle α. The wiring brace iron, brace iron and fixed hoop are all made of metal materials. The lower end of the lightning protection device of the utility model adopts a fixed hoop to fix On top of the pole, simple and practical, easy to install. A layer of lightning protection net is formed on the upper part of the 10kV power overhead line, and the lightning is introduced into the earth through the grounding down conductor.

Description

lightning protection device

technical field

The utility model relates to a lightning protection device for 10kV power overhead lines, in particular to a lightning protection device for 10kV power overhead lines in areas where thunderstorms frequently occur, and is mainly used for lightning protection of 10kV power overhead lines.

Background technique

With the current high-altitude and full-insulation trend of 10kV power overhead lines, the probability of lightning strikes on the line and the possibility of lightning disconnection have greatly increased, and the customer's dependence on power is gradually increasing, and the requirements for power supply reliability are increasing. harsh. The existing technology is to use lightning arresters or overvoltage protectors for lightning protection, which can play a certain lightning protection effect under normal circumstances, but in areas where lightning strikes occur frequently, the protection ability is not obvious, and lightning strike disconnection occurs from time to time. This lightning protection device is to erect a lightning protection ground wire above the 10kV electric power overhead line, and use connecting wires to introduce lightning into the ground, isolate the line from lightning, and greatly improve the power supply reliability of the power line.

Contents of the invention

The purpose of this utility model is to provide a lightning protection device which can be specially used for preventing lightning strikes on 10kV power overhead lines.

In order to achieve the above object, the technical solution adopted by the utility model is:

A lightning protection device, including a fixed hoop, is characterized in that: the fixed hoop is connected to the wiring support iron through the support iron, the wiring support iron is connected with a lightning protection ground wire, and the lightning protection ground wires on each lightning protection device are grounded at intervals, The wiring support iron is provided with a hole, and the support iron is L-shaped or U-shaped.

The wiring support iron is L-shaped, and there are two or more fixed hoops. The fixed hoop is fixed and installed on the pole through a nut. The support iron is welded to the fixed hoop. The wiring stays are connected by screws, the length of the stays can be determined according to the shielding angle α, and the wiring stays, stays and fixing hoops are all made of metal materials.

Compared with the previous lightning protection device, the utility model lightning protection device:

1. The lower end of the lightning protection device of this utility model adopts a fixed hoop, which can be fixed on the top of the pole, which is simple, practical and easy to install.

2. The upper end of the lightning protection device of this utility model is a ground wire support iron, and the top of the support iron is provided with a suspension clamp or splint, which can fix the lightning protection ground wire and form a layer of lightning protection net on the upper part of the 10kV electric power overhead line to pass through the lightning. The grounding down conductor leads to the earth.

Description of drawings

Fig. 1 is the structural representation of the utility model L-shaped strut iron embodiment;

Fig. 2 is the structural representation of the utility model L-shaped support iron embodiment;

Fig. 3 is the top structural schematic diagram of the embodiment of the L-shaped strut of the present invention;

Fig. 4 is the structural representation of the utility model U-shaped support iron embodiment;

Fig. 5 is the top view structure schematic diagram of the utility model U-shaped strut iron embodiment;

Fig. 6 is a schematic diagram of the installation structure of the present invention.

1. Wiring support iron; 2. Hole; 3. Support iron; 4. Fixed hoop; α, shielding angle.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

As shown in the figure, the lightning protection device of the utility model has an upper ground wire support iron 3, and a suspension clamp and a splint are provided on the top for fastening the lightning protection ground wire. The lower end of the device is a fixed hoop, including two hoops, used The bolts are fastened on the pole, the upper end is the ground wire support iron, the support iron is made of "L" iron or "C" iron, the lower end of the support iron is connected with the fixed hoop, and the upper end of the support iron is provided with a suspension clamp or splint. Used to fasten the lightning protection ground wire. Its characteristics are: the hoop of the device fixes the top of the pole, and then calculates the height of the support iron according to the shielding angle α. When lightning strikes, it is connected to the lightning through the lightning protection ground wire, and then the lightning is introduced into the earth through the connecting wire; all the above-mentioned parts are made of metal material to achieve the purpose of preventing 10kV power overhead lines from lightning strikes.

The above-mentioned embodiment is only to describe the preferred implementation of the present utility model, not to limit the design and protection scope of the present utility model. Various modifications and improvements made in the technical solution of the utility model shall fall within the scope of protection of the utility model.

Claims (9)

1. a lightning arrester, comprises fixing anchor ear (4), it is characterized in that: fixing anchor ear (4) connects wiring iron brace (1) by iron brace (3), and wiring iron brace (1) is connected with lightning protection ground wire.

2. a kind of lightning arrester according to claim 1, is characterized in that: the wiring iron brace (1) of each lightning arrester is connected successively by lightning protection ground wire, spaced ground between the lightning protection ground wire on each lightning arrester.

3. a kind of lightning arrester according to claim 1, is characterized in that: described wiring iron brace (1) is arranged porose (2).

4. a kind of lightning arrester according to claim 1, is characterized in that: described iron brace (3) is L shape or U-shaped.

5. a kind of lightning arrester according to claim 1, is characterized in that: described wiring iron brace (1) is L shape.

6. a kind of lightning arrester according to claim 1, is characterized in that: described fixing anchor ear (4) is provided with two or more, and fixing anchor ear (4) is fixedly mounted on electric pole by nut.

7. a kind of lightning arrester according to claim 1, is characterized in that: described iron brace (3) is welded with fixing anchor ear (4), and iron brace (3) is connected by screw with wiring iron brace (1).

8. a kind of lightning arrester according to claim 1, is characterized in that: described iron brace (3) length can be determined according to shield angle α.

9. a kind of lightning arrester according to claim 1, is characterized in that: described wiring iron brace (1), iron brace (3) and fixing anchor ear (4) all adopt metal material to make.