CN211150812U - Novel grounding wire device - Google Patents

Abstract

The utility model relates to the technical field of electric power equipment, and specifically discloses a novel grounding wire device, which is suitable for overhead lines. The overhead line comprises an electric pole and an overhead wire erected on the electric pole. The novel grounding wire device comprises: an upper lead, an upper lead The upper end is electrically connected with the overhead wire; the isolation switch, the isolation switch is fixed in the middle of the pole, which includes a static contact electrically connected to the lower end of the upper lead, a moving contact and a knife switch for connecting the static contact and the moving contact ; lower lead, the upper end of the lower lead is electrically connected with the movable contact; connecting terminal, the connecting terminal is fixed on the lower part of the pole, and its upper end is electrically connected with the lower end of the lower lead; grounding cable, the upper end of the grounding cable is electrically connected with the connecting terminal; The grounding terminal is buried in the ground and is electrically connected to the lower end of the grounding cable. The utility model provides a novel grounding wire device, which can reduce the burden of electric personnel and improve the working efficiency of hanging the grounding wire.

Description

New ground wire device

technical field

The utility model relates to the technical field of electric equipment, in particular to a novel grounding wire device.

Background technique

In the construction of power distribution network, hanging ground wire is one of the important safety measures. It is a work that needs to be completed before most power outage operations. It can protect the operators from the damage of incoming calls from nearby lines during the construction process.

According to the current method, when manually hooking the ground wire, one end of the ground wire must be well grounded, and then the other end of the ground wire must be hooked to the wire through an insulating operating rod. The process of removing the ground wire is just the opposite.

There are many operational requirements for hooking up a ground wire, including:

The connection of the grounding wire should be reliable, and it is not allowed to twist or use an ungrounded short-circuit wire;

When the ground wire is hung on the multi-layer power line erected on the same pole, the lower layer wire should be hung first, then the upper layer wire should be hung, the wire that is stronger from the human body should be hung first, and then the wire that is farther away from the human body should be hung;

In order to ensure the personal safety of the operator, an insulating rod or insulating gloves should be used when installing or removing the ground wire, and the human body should not touch the ground wire or ungrounded conductors;

It is strictly forbidden for staff or other personnel to move the ground wire that has been hung at will. If it is necessary to move, it must be approved by the work permit person or the person in charge of the work, and it must be indicated on the work ticket and safety measures ticket. The grounding wire consists of 1 grounding section and 3-4 short-circuit sections. The grounding wire must be a multi-strand soft bare copper wire, and the area of a single wire should not be less than 16mm ² . It is strictly forbidden to use other wires as the grounding wire.

In order to ensure the safety of the operation, it is necessary to carry out the operation of hanging the ground wire in accordance with the regulations. At present, the hanging wire has become one of the main reasons for affecting the work efficiency. Because the grounding wire is generally copper wire with a length of more than 10 meters and a weight of more than 15kg, the operator needs to lift the bulky insulating operating rod and the grounding wire to a high place, and hang it in strict accordance with the requirements of safety regulations, which is very time-consuming and labor-intensive, especially For female staff with insufficient arm strength, it is quite difficult to hook up the ground wire.

Therefore, there is a need for a device that can easily connect the ground wire, so as to reduce the burden of electric personnel and improve the work efficiency of hanging the ground wire.

Utility model content

One purpose of the present utility model is to provide a novel grounding wire device, which can reduce the burden of electric personnel and improve the working efficiency of hanging grounding wires.

In order to achieve the above purpose, the present utility model provides a novel grounding wire device, which is suitable for overhead lines. The overhead line includes an electric pole and an overhead wire erected on the electric pole. The novel grounding wire device includes:

an upper lead, the upper end of the upper lead is electrically connected to the overhead wire;

An isolating switch, the isolating switch is fixed in the middle of the electric pole, and includes a static contact electrically connected to the lower end of the upper lead, a moving contact and a knife for connecting the static contact and the moving contact brake;

a lower lead, the upper end of the lower lead is electrically connected to the movable contact;

a connection terminal, the connection terminal is fixed on the lower part of the electric pole, and the upper end of the connection terminal is electrically connected with the lower end of the lower lead;

a grounding cable, the upper end of the grounding cable is electrically connected to the connecting terminal;

a grounding terminal, which is buried in the ground and is electrically connected to the lower end of the grounding cable.

Preferably, it also includes a porcelain cross-arm, the porcelain cross-arm is fixed on the electric pole, and is located between the overhead wire and the isolation switch, and the middle part of the upper lead is fixed on the porcelain cross-arm.

Preferably, an angle steel supporting iron piece is also included, and the isolating switch is fixedly connected to the electric pole through the angle steel supporting iron piece.

Preferably, a C-shaped wire clip is also included, and the upper lead wire and the overhead wire are electrically connected through the C-shaped wire clip.

Preferably, the ground terminal includes a horizontal ground electrode and a vertical ground electrode.

The beneficial effects of the present utility model are as follows: a novel grounding wire device is provided. Since the isolating switch and the connecting terminal are both fixed on the pole, the whole new grounding wire device basically remains in a stationary state, and the only movable part is a knife When it is necessary to hang the ground wire, the electrician only needs to use an insulating rod on the ground to close the knife switch. At this time, the overhead wire passes through the upper lead, the isolating switch, the lower lead, the connecting terminal, the grounding cable and the grounding terminal in turn. Grounding; when no grounding is required, the electrician only needs to use an insulating rod on the ground to disconnect the knife switch. The novel grounding wire device provided by the utility model basically has a long life of the grounding circuit as a whole, and only needs to switch the opening and closing state of the isolation switch to realize grounding or not. reduce the workload and greatly improve the work efficiency of hanging ground wires.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

FIG. 1 is a schematic structural diagram of a novel grounding wire device provided by an embodiment.

In the picture:

1. Electric pole; 2. Overhead wire;

3. Upper lead; 4. Disconnector; 5. Lower lead; 6. Connecting terminal; 7. Grounding cable; 8. Grounding terminal; 801, Horizontal grounding pole; 802, Vertical grounding pole; 9. Porcelain cross arm; 10, Angle steel support iron; 11. Hoop; 12. C-type wire clip.

Detailed ways

In order to make the purpose, features and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, The embodiments described below are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments.

Referring to FIG. 1 , the present embodiment provides a novel grounding wire device suitable for overhead lines. The overhead line includes an electric pole 1 and an overhead wire 2 erected on the electric pole 1 , and the novel grounding wire device includes an upper lead 3 , isolating switch 4, lower lead 5, connecting terminal 6, grounding cable 7 and grounding terminal 8. The upper end of the upper lead 3 is electrically connected to the overhead wire 2 . The isolating switch 4 is fixed in the middle of the electric pole 1, and includes a static contact electrically connected to the lower end of the upper lead 3, a moving contact and a knife for connecting the static contact and the moving contact. brake. The upper end of the lower lead 5 is electrically connected to the movable contact. The connecting terminal 6 is fixed to the lower part of the electric pole 1 , and the upper end thereof is electrically connected to the lower end of the lower lead 5 . The upper end of the ground cable 7 is electrically connected to the connection terminal 6 . The ground terminal 8 is buried in the ground and is electrically connected to the lower end of the ground cable 7 .

Specifically, since the isolating switch 4 and the connecting terminal 6 are both fixed on the pole 1, the whole new ground wire device basically remains in a stationary state, and the only movable part is the knife switch. When the ground wire needs to be hung, the power The personnel only need to use an insulating rod on the ground to close the knife switch. At this time, the overhead wire 2 passes through the upper lead 3, the isolation switch 4, the lower lead 5, the connecting terminal 6, the grounding cable 7 and the grounding terminal 8 in turn to achieve grounding; when When grounding is not required, the electrician only needs to use an insulating rod on the ground to disconnect the knife switch. The novel grounding wire device provided by the utility model has a basically long-term life of the grounding circuit as a whole, and only needs to switch the on-off state of the isolating switch 4 to realize grounding or not. The operation is simple and convenient, and there is no need to lift heavy copper wires, which can reduce power The workload of personnel is greatly improved and the work efficiency of hanging ground wires is greatly improved.

The new ground wire device also includes a porcelain cross-arm 9, the porcelain cross-arm 9 is fixed on the electric pole 1, located between the overhead wire 2 and the isolation switch 4, and the middle part of the upper lead 3 is fixed on the electric pole 1. on the porcelain cross arm 9.

Specifically, arranging the porcelain cross-arm 9 can effectively organize and fix the upper lead 3, prevent the upper lead 3 from swinging with the wind due to being too long, and avoid safety accidents.

Optionally, the novel grounding wire device further includes an angle steel supporting iron piece 10 , and the isolating switch 4 is fixedly connected to the electric pole 1 through the angle steel supporting iron piece 10 .

Preferably, the angle steel supporting iron piece 10 is connected to the pole 1 through a hoop 11 . It can be understood that by adjusting the position of the hoop 11 up and down, the height of the isolation switch 4 can be adjusted, which is convenient for the electrician to work only by lifting the pole without ascending.

In this embodiment, the novel grounding wire device further includes a C-shaped wire clip 12 , and the upper lead 3 and the overhead wire 2 are electrically connected through the C-shaped wire clip 12 .

Specifically, the C-type wire clip 12 is widely used, simple and easy to use, and can effectively reduce the cost of the new ground wire device.

In this embodiment, the ground terminal 8 includes a horizontal ground electrode 801 and a vertical ground electrode 802 .

This embodiment provides a novel grounding wire device, which has the following advantages:

①At present, most of the suspension or removal of the ground wire of the distribution line needs to be completed on the pole. Using this tool to break the traditional method, the installation and removal of the ground wire can be completed on the ground.

②The new ground wire device greatly reduces the working time and ensures safe production.

③The new ground wire device is connected to the wire through the wire clip, and the connection is firm.

④ The operation method of the new ground wire device is simple and easy to understand, and the operators are easy to accept, and it does not require much training to promote the use.

⑤The traditional grounding wire needs to be placed in a special tool cabinet, which has requirements such as humidity and temperature. The maintenance work is cumbersome and the cost is high. This tool has a low cost and no additional supporting tools. It can be placed outdoors and is easy to maintain.

The above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be used for the foregoing implementations. The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (5)

1. A novel grounding wire device is applicable to overhead lines, and the overhead lines include an electric pole and an overhead wire erected on the electric pole, and is characterized in that, comprising: an upper lead, the upper end of the upper lead is electrically connected to the overhead wire; An isolating switch, the isolating switch is fixed in the middle of the electric pole, and includes a static contact electrically connected to the lower end of the upper lead, a moving contact and a knife for connecting the static contact and the moving contact brake; a lower lead, the upper end of the lower lead is electrically connected to the movable contact; a connection terminal, the connection terminal is fixed on the lower part of the electric pole, and the upper end of the connection terminal is electrically connected with the lower end of the lower lead; a grounding cable, the upper end of the grounding cable is electrically connected to the connecting terminal; a grounding terminal, which is buried in the ground and is electrically connected to the lower end of the grounding cable. 2 . The novel grounding wire device according to claim 1 , further comprising a porcelain cross-arm, the porcelain cross-arm is fixed on the electric pole, and is located between the overhead wire and the isolation switch, 2 . The middle part of the upper lead wire is fixed on the porcelain cross arm. 3 . The novel grounding wire device according to claim 1 , further comprising an angle-steel supporting iron piece, and the isolation switch is fixedly connected to the electric pole through the angle-steel supporting iron piece. 4 . 4 . The novel grounding wire device according to claim 1 , further comprising a C-shaped wire clip, and the upper lead wire and the overhead wire are electrically connected through the C-shaped wire clip. 5 . 5 . The novel grounding wire device according to claim 1 , wherein the grounding terminal comprises a horizontal grounding electrode and a vertical grounding electrode. 6 .

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