CN205178076U - Connection lug and have its earth connection - Google Patents

Abstract

The utility model provides a connection lug and have its earth connection, connection lug, include: wiring portion (10), fixed part (20), fixed part (20) are connected with wiring portion (10), and fixed part (20) have fixed orifices (21), and the diameter of fixed orifices (21) is L, wherein, 15.5mm <= L <= 16.5mm. Set the aperture of connection lug fixed orifices (21) to 15.5mm <= L <= 16.5mm, what can make that the connection lug that has this pore size can be fine is general in 110kV and 35kV's transformer substation. Effectively improvement connection lug's the rate of utilization. The utility model discloses the low problem of connection lug availability factor among the prior art has been solved effectively.

Description

Terminal lug and ground wire with it

technical field

The utility model relates to the technical field of electric equipment, in particular to a terminal lug and a grounding wire provided therewith.

Background technique

In the power system, the grounding wire is a tool to prevent accidental voltage on equipment and lines that have been powered off and endanger the safety of workers. During the maintenance or construction of equipment in the substation, it is necessary to connect the grounding wire to each incoming side of the equipment to prevent the electrostatic induction of the adjacent charged body and ensure safety when the switch is closed by mistake. The conductor end of the grounding wire is hung on each incoming side of the power failure equipment, and the grounding end is fixed on the grounding conductor.

The grounding end of the grounding wire is fixed on the grounding conductor. The fixing method is to put the lug of the grounding wire on the screw of the grounding conductor, and fix it with a nut to prevent it from falling off. In the prior art, due to the different construction times of substations, different types of equipment, and different voltage levels, the types of screws used to fix the grounding end of the grounding wire in the substation are different, resulting in that the grounding wire cannot be used in common between different substations.

Utility model content

The main purpose of the utility model is to provide a wiring lug and a grounding wire with it, so as to solve the problem of low efficiency of the wiring lug in the prior art.

In order to achieve the above object, according to one aspect of the utility model, a terminal lug is provided, including: a terminal part; , 15.5mm≤L≤16.5mm.

Further, the diameter of the fixing hole is L, where L=16.3mm.

Further, the terminal lug further includes: an arc-shaped connection part, one end of the arc-shaped connection part is connected to the wiring part, and the other end of the arc-shaped connection part is connected to the fixing part.

Further, the arc-shaped connecting portion has an arc surface protruding outward.

Furthermore, the terminal lug also includes an arc-shaped connection part, one end of the arc-shaped connection part is connected to the connection part and has an angle with the axis of the connection part, and the other end of the arc-shaped connection part extends along the axis of the connection part and gradually moves away from the connection part. axis.

Further, the wiring part has a wiring opening for installing wires.

Further, the lug is made of copper.

Further, the cross section of the fixing part is in the shape of a rectangular ring, a circular ring or an elliptical ring structure.

According to another aspect of the present invention, a grounding wire is provided, including a terminal lug, and the terminal lug is the above-mentioned terminal lug.

Applying the technical solution of the utility model, the aperture of the fixing hole of the lug is set to 15.5mm≤L≤16.5mm, so that the lug with this aperture can be well used in 110kV and 35kV substations. Effectively improve the utilization rate of the wiring lug.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 shows a schematic structural view of an embodiment of a wiring lug according to the present invention; and

Fig. 2 shows a structural schematic diagram of another viewing angle of the embodiment of the terminal lug according to the present invention.

Wherein, the above-mentioned accompanying drawings include the following reference signs:

10. Wiring part; 20. Fixing part; 21. Fixing hole; 30. Arc connecting part; 31. Arc surface.

detailed description

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in FIG. 1 , according to an embodiment of the present invention, a terminal lug is provided. The terminal lug includes a terminal part 10 and a fixing part 20 . The fixing part 20 is connected with the connection part 10, and the fixing part 20 has a fixing hole 21, and the diameter of the fixing hole 21 is L, wherein, 15.5mm≤L≤16.5mm.

In this embodiment, the diameter of the fixing hole 21 of the lug is set to 15.5mm≤L≤16.5mm, so that the lug with this diameter can be commonly used in 110kV and 35kV substations. Effectively improve the utilization rate of the wiring lug.

Preferably, the diameter L of the fixing hole 21 is 16.3 mm. The holes of the wiring lugs are improved so that the wiring lugs can be used for the screws of grounding conductors of different specifications in the existing substation.

Wherein, the terminal lug also includes an arc-shaped connecting portion 30 . One end of the arc-shaped connecting portion 30 is connected to the connection portion 10 , and the other end of the arc-shaped connecting portion 30 is connected to the fixing portion 20 . Such setting can effectively strengthen the mechanical strength of the wiring lug.

Preferably, the arc-shaped connecting portion 30 has an outwardly protruding arc surface 31 . The arc surface 31 can increase the thickness of the arc-shaped connecting portion 30, and such arrangement can further strengthen the mechanical strength of the terminal lug.

As shown in FIG. 2 , in this embodiment, one end of the arc-shaped connecting portion 30 is connected to the connecting portion 10 and has an included angle with the axis of the connecting portion 10 , and the other end of the arc-shaped connecting portion 30 is along the axis of the connecting portion 10 The direction extends and gradually moves away from the axis. The arc-shaped connecting portion 30 and the connecting portion 10 are arranged obliquely, and one end of the arc-shaped connecting portion 30 gradually moves away from the connecting portion 10 and extends downward, which makes the connecting lug easy to use, and it is easy to set the connecting lug on the screw of the grounding conductor. It should be noted that the bottom mentioned here refers to the bottom when the wiring lug is placed in the state shown in FIG. 2 .

Wherein, the wiring part 10 has a wiring opening 11 for installing wires. That is, the grounding wire can be installed in the connection port 11 , and then the fixing part 20 at the other end of the connection lug can be sleeved on the screw to achieve the purpose of grounding the grounding wire.

Preferably, the lugs are made of copper.

The cross section of the fixing part 20 can be configured as one of a rectangular ring, a circular ring or an elliptical ring structure. Such setting can make the lug suitable for screws with different shapes and structures. Thereby increasing the usage rate of the wiring lug.

The above-mentioned terminal lug can be used on the grounding wire, that is, the utility model provides a grounding wire. The grounding wire includes a terminal lug, which is the terminal lug of the above-mentioned embodiment. The ground wires with lugs are 110kV and 35kV ground wires. The grounding wire can be commonly used in various substations.

The grounding wire can be used for screws of different specifications of grounding conductors in the existing substation. From the above description, it can be seen that the above-mentioned embodiments of the utility model have achieved the following technical effects:

Through the improvement of the terminal lug of the grounding wire, the grounding wire of 110kV and 35kV can be commonly used in the substations of 110kV and 35kV, and the utilization rate of the terminal lug can be improved.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (9)

1. a Wiring nose, is characterized in that, comprising:

Wire connecting portion (10);

Fixed part (20), described fixed part (20) is connected with described wire connecting portion (10), and described fixed part (20) has fixing hole (21), and the diameter of described fixing hole (21) is L, wherein, 15.5mm≤L≤16.5mm.

2. Wiring nose according to claim 1, is characterized in that, the diameter of described fixing hole (21) is L, wherein, and L=16.3mm.

3. Wiring nose according to claim 2, is characterized in that, described Wiring nose also comprises:

Arc connecting portion (30), one end of described arc connecting portion (30) is connected with described wire connecting portion (10), and the other end of described arc connecting portion (30) is connected with described fixed part (20).

4. Wiring nose according to claim 3, is characterized in that, described arc connecting portion (30) has cambered surface (31) outstanding laterally.

5. Wiring nose according to claim 1, it is characterized in that, described Wiring nose also comprises arc connecting portion (30), one end of described arc connecting portion (30) is connected with described wire connecting portion (10) and has angle with the axis of described wire connecting portion (10), and the other end of described arc connecting portion (30) to extend and gradually away from described axis along the axis direction of described wire connecting portion (10).

6. Wiring nose according to claim 1, is characterized in that, described wire connecting portion (10) has the connection jaws (11) for conducting wire.

7. Wiring nose according to claim 1, is characterized in that, described Wiring nose is made of copper.

8. Wiring nose according to claim 1, is characterized in that, the rectangular ring of cross section of described fixed part (20), circular rings or oval hoop.

9. an earth connection, comprises Wiring nose, it is characterized in that, described Wiring nose is the Wiring nose described in any one of claim 1 to 8.