Grounding box inner hole plugging and grounding cable anti-falling device

Abstract

The invention relates to a grounding box inner hole plugging and grounding cable anti-falling device. The device is applied to a grounding box; the device comprises a base; the base comprises a left clamping seat and a right clamping seat which are matched with each other; a through hole is formed between the left clamping seat and the right clamping seat; an anti-skid rubber ring is arranged in the through hole; a locking nut is arranged on the base; and the bottom end of the base is tightly attached to a box body of the grounding box. According to the device of the invention, the fixed plugging of the grounding box is achieved when the grounding cable penetrates into the grounding box through the base; plugging mud does not need to be used for plugging during plugging due to the fact that the bottom end of the base is tightly attached to the box body of the grounding box during installation, and therefore, a plugging structure is simplified; the base can not only fix the grounding cable, but also realize the plugging of the inner hole of the grounding box, the overall device is convenient to assemble and disassemble and reliable in connection; and the grounding cable is locked through a locking nut arranged on the base, and due to the reliability of connection between the locking nut and the base, the grounding cable is effectively prevented from falling.

Description

technical field [0001] The invention relates to a device for sealing the inner hole of a grounding box and preventing a grounding cable from falling. Background technique [0002] With the rapid development of the economy, there are more and more urban new cables and overhead lines to cable projects, and the requirements for power cable operation and maintenance are getting higher and higher. In order to reduce the induced voltage of the metal sheath during the operation of single-core power cables, generally through The cable is directly grounded or grounded after passing through the overvoltage limiter. The grounding cable plays the role of shunting the grounding current of the metal sheath of the power cable. The grounding box is used for sealing protection. At present, the place where the grounding cable passes through the grounding box is sealed with insulating plugging mud. The sealing effect is not good and the grounding cable has a risk of falling during maintenance ...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the economy, more and more urban new cables and overhead lines are converted into cables, and the requirements for power cable operation and maintenance are also getting higher and higher. In order to reduce the induced voltage of the metal sheath during the operation of single-core power cables, generally through ground The grounding cable is directly grounded or grounded after passing through the overvoltage limiter. The grounding cable plays the role of shunting the grounding current of the metal sheath of the power cable. The grounding box is used for closed protection. At present, the place where the grounding cable passes through the grounding box is sealed with insulating plugging mud. The sealing effect is not good, and the grounding cable has a risk of falling during maintenance operations.

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