CN104348122A - Ground potential mounting type shunt wire clamp device and mounting method thereof - Google Patents

Abstract

The invention relates to a ground potential installation type shunt wire clamp device and its installation method. The shunt wire clamp device includes two wire clamps arranged on the left and right sides and a drain wire connecting the two wire clamps. The upper end of the clamp is connected to a bracket, and the bracket is fixedly connected to the right with a first bolt, and the upper end of the right clamp is provided with a through hole with a diameter larger than the first bolt, and is sleeved on the first bolt; The lower end of the right wire clamp is hinged with a rotating block, the rotating block is provided with a threaded through hole, and the second bolt is pierced, the lower end of the left wire clamp is provided with a bayonet, and the left end of the second bolt is provided with a catchable The head of the bayonet socket, the right ends of the first bolt and the second bolt are respectively provided with locking nuts. The device and its installation method can realize the installation of shunt line clips at the ground potential, and not only have high safety and wide application range, but also are easy to operate and high in operation efficiency.

Description

Ground potential installation type shunt clamp device and installation method thereof

technical field

The invention relates to the technical field of transmission line construction, in particular to a ground potential installation type shunt clamp device and an installation method thereof.

Background technique

Heat generation caused by loose bolts or line overload is a common defect in line operation. Long-term heat generation or short-term overheating will cause equipment life to be reduced or even damaged, and shunting by installing a shunt clip is the basic method to deal with heat generation defects. The effect is high And it has a wide range of applications.

At present, the shunt clamps are connected by two aluminum clamps with drain wires, and the two sides are fastened by bolts. The installation of the shunt clamps is completed by equipotential operation. The specific method is to install the two ends of the insulated hard ladder separately. On the side of the tower cross arm and the conductor (the hanging point is near the heating point), and then the equipotential workers wear high-voltage shielding clothing and enter the high-voltage electric field on the conductor side through an insulated hard ladder, remove the bolt on one side of the shunt clamp and insert the conductor, and then tighten both sides. Bolt to keep it in place.

Due to the limitations of the existing shunt clamps, the installation of the shunt clamps can only be carried out by using the equipotential operation method, but there are many shortcomings in the use of the equipotential operation method: one is the safety of the equipotential operators. For high-voltage electric field operations, any negligence or inadequate safety measures may cause high-voltage electric shock accidents; the second is the scope of application of equipotential installation shunt clamps. Equipotential operations have strict requirements for safety distances. Especially when the live equipment in the substation is compact, the safety distance specified in the safety regulations cannot be reached, and the equipotential operation cannot be carried out; the third is the cumbersome operation of the equipotential installation of the shunt clamp, and the equipotential operation has many procedures and tools. , There are many auxiliary personnel who are required to cooperate with the equipotential operators, and the operating efficiency is low.

Contents of the invention

The purpose of the present invention is to provide a ground potential installation type shunt clamp device and its installation method, the device and its installation method can realize the ground potential installation shunt clamp, not only high safety, wide application range, but also easy to operate , High operating efficiency.

In order to achieve the above object, the technical solution of the present invention is: a ground potential installation type shunt wire clip device, including two wire clips on the left and right sides and a drainage wire connecting the two wire clips, the left wire The upper end of the clip is connected with a bracket, and the bracket is fixedly connected to the right with a first bolt, and the upper end of the right side clamp is provided with a through hole with a diameter larger than the first bolt, and is sleeved on the first bolt; The lower end of the side wire clamp is hinged with a rotating block, the rotating block is provided with a threaded through hole, and a second bolt is pierced, the lower end of the left wire clamp is provided with a bayonet, and the left end of the second bolt is provided with a clamping hole. The head of the bayonet socket, the right ends of the first bolt and the second bolt are respectively provided with lock nuts.

Further, the upper end of the left wire clamp is hinged to the bracket through a pin shaft, so that the left wire clamp can swing left and right around the pin shaft.

Further, the bracket is provided with an operating rod connecting portion for connecting the operating rod.

The invention also discloses a method for installing the above-mentioned shunt clamp device, which includes the following steps:

(1) Connect the first operating rod to the connecting part of the operating rod, and transfer the shunt clamp device to the heating point through the first operating rod;

(2) Use the second operating lever to turn the left clamp to a position where the second bolt can be clamped;

(3) Use the second operating lever to pull the second bolt so that its head catches the bayonet of the left wire clamp, so that the shunt wire clamp device is inserted into the wire at the heating point;

(4) Tighten the lock nut with the wrench set on the head of the second operating rod, so as to fix the shunt wire clamp device, and the installation of the shunt wire clamp device is completed.

The beneficial effect of the present invention is to provide a ground potential installation type shunt clamp device and its installation method, which can realize the remote installation of the shunt clamp at the ground potential by using the operating lever and auxiliary tools, compared with the traditional equipotential installation The method and device, one is to avoid the equipotential operators entering and exiting the high-voltage electric field, and instead adopt the ground potential operation method, and the operators can operate on the pole or tower cross arm or the tower body, which ensures the safety of the operators to the greatest extent and eliminates the need for installation The electric shock accident that may occur in the shunt clamp, the second is to solve the problem of the erection position of the hard ladder and the occupation of auxiliary personnel in the equipotential operation, expand the optional range of occupation of the ground potential operator, and reduce the number of people who cannot work due to insufficient safety distance. The installation operation has expanded the scope of application. The third is to reduce the procedures such as high-voltage equipotential operation personnel and erecting insulating hard ladders, which simplifies the installation process and makes the assembly and disassembly of the shunt clamp more simple and efficient. It has strong practicality. sex.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of an embodiment of the present invention in a first working state.

Fig. 3 is a schematic diagram of the embodiment of the present invention in a second working state.

Fig. 4 is a schematic diagram of the embodiment of the present invention in a third working state.

In the figure, 1-left wire clamp, 2-right wire clamp, 3-drain wire, 4-bracket, 5-first bolt, 6-through hole, 7-rotating block, 8-threaded through hole, 9- The second bolt, 10-bayonet, 11-the head of the second bolt, 12-lock nut, 13-lock nut, 14-operating rod connecting part.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The ground potential installation type shunt wire clip device of the present invention, as shown in Figure 1, comprises two wire clips 1, 2 located on the left and right sides and the drainage wire 3 connecting the two wire clips, the left wire clip 1 The upper end is connected with a bracket 4, the bracket 4 is fixedly connected to the right with a first bolt 5, and the upper end of the right side clamp 2 is provided with a through hole 6 with a diameter larger than the first bolt 5, and is sleeved on the first bolt 5. The lower end of the right side clamp 2 is hinged with a rotating block 7, and the rotating block 7 is provided with a threaded through hole 8, and is pierced with a second bolt 9, so that the second bolt 9 can swing left and right with the rotation speed 7, and can also move with the right The side clamp 2 rotates around the first bolt 5 . The lower end of the left wire clamp 1 is provided with a bayonet 10, the left end of the second bolt 9 is provided with a head 11 that can block the bayonet 10, and the first bolt 5 and the right end of the second bolt 9 are respectively provided with lock nuts 12,13. In order to connect with the operating rod, the bracket 4 is provided with an operating rod connecting portion 14 for connecting the operating rod.

In this embodiment, the upper end of the left wire clamp 1 is hinged to the support 4 via a pin shaft, so that the left wire clamp 1 can swing left and right around the pin shaft, as shown in Figs. 1 and 2 .

The ground potential work and equipotential work involved in the present invention will be described accordingly. Ground potential work refers to the method of using insulated tools to indirectly contact live equipment to achieve the purpose of maintenance when the human body is in the state of ground (zero) potential. Equipotential work refers to the work that the operator raises to the potential of the live part through the electrical connection, and is properly isolated from the surrounding different potentials, and directly performs the work on the live part.

The invention also discloses a ground potential installation method of the above shunt clamp device, which includes the following steps:

(1) Connect the first insulating operating rod to the operating rod connecting part 14 on the bracket 4, and then transfer the shunt clamp device to the heating point through the first insulating operating rod.

(2) Use the second insulating operating lever to turn the left clamp 1 to the position where the second bolt 9 can be stuck, and its working state is shown in Figure 2.

(3) Use the second insulating lever to pull the second bolt 9, so that its head 11 is caught in the bayonet 10 of the left wire clamp 1, so that the shunt wire clamp device is inserted into the wire at the heating point, and its working state is as follows: Figure 3 shows.

(4) Tighten the locking nuts 12 and 13 with the wrench set on the head of the second insulating operating rod to fix the shunt clamp device. The working state is shown in Figure 4, and the installation of the shunt clamp device is completed.

The above are the preferred embodiments of the present invention, and all changes made according to the technical solution of the present invention, when the functional effect produced does not exceed the scope of the technical solution of the present invention, all belong to the protection scope of the present invention.

Claims (4)

1. an earth potential installing type shunting wire clamp device, it is characterized in that, comprise the two pieces of wire clamps being located at arranged on left and right sides and the drainage thread connecting two pieces of wire clamps, wire clamp upper end, left side is connected with a support, described support is fixedly connected with one first bolt to the right, wire clamp upper end, right side offers the through hole that diameter is greater than described first bolt, and is sheathed on described first bolt; Wire clamp lower end, right side is hinged with a moving block, described moving block offers tapped through hole, and is equipped with the second bolt, wire clamp lower end, left side is provided with a bayonet socket, described second bolt left end is provided with the head that can block described bayonet socket, and described first bolt, the second bolt right-hand member are respectively equipped with locking nut.

2. earth potential installing type shunting wire clamp device according to claim 1, it is characterized in that, wire clamp upper end, left side is articulated with on described support through bearing pin, can swing to make left side wire clamp around described bearing pin.

3. earth potential installing type shunting wire clamp device according to claim 2, it is characterized in that, described support is provided with the action bars connecting portion for attended operation bar.

4. the installation method of earth potential installing type shunting wire clamp device according to claim 3, is characterized in that, comprise the following steps:

(1) the first action bars is connected with described action bars connecting portion, by the first action bars, shunting wire clamp device is delivered to heat generating spot place;

(2) adopt the second action bars that described left side wire clamp is turned to the position can blocking described second bolt;

(3) adopt the second action bars to pull described second bolt, make its head block the bayonet socket of described left side wire clamp, thus shunting wire clamp device is packed into the wire at heat generating spot place;

(4) adopt the spanner cover of the second operation club head to screw locking nut, thus fix shunting wire clamp device, so far shunting wire clamp device installation.