Telescopic wire box for ground resistance measurement guide wire

Abstract

The invention discloses a telescopic wire box for a ground resistance measurement guide wire. The telescopic wire box comprises a box body (1). The center of the box body (1) is provided with a guide shaft core (2). The guide shaft core (2) is transversely arranged in the center of the box body (1) and in rotation connection with the front side and the rear side of the box body (1). One end of the guide shaft core (2) is provided with a handle (3). The poking handle (3) drives the guide shaft core (2) to rotate. The left side and the right side of the box body (1) are provided with a guide wire outlet I (4) and a guide wire outlet II (5) respectively. The ground resistance measurement guide wire (9) is located in the box body (1). One end of the ground resistance measurement guide wire (9) extends out of the box body (1) through the guide wire outlet I (4) to be connected with a ground resistance tester (6). After the main body of the ground resistance measurement guide wire (9) is wound around the guide shaft core (2), the other end of the ground resistance measurement guide wire (9) extends out of the box body (1) through the guide wire outlet II (5) for stretching.

Description

technical field [0001] The invention relates to a telescopic wire box for measuring wires of grounding resistance. Background technique [0002] Measuring grounding resistance is a common operation and maintenance method in line work. In the operation of power lines, in order to ensure the conductive effect of the soil near the tower, the grounding resistance needs to be controlled within a certain range. When the grounding resistance is too large, the tower is likely to strike back against the wire when it is struck by lightning. The commonly used grounding resistance measurement method is to insert two grounding probes into the ground 20 and 40 meters away from the grounding body along the grounding radiation direction, and the insertion depth is 400mm. Through the investigation of grounding resistance measurement, it is found that the wires as long as 20 and 40 meters are often twisted and knotted. In the process of measuring the grounding resistance of multi-base towers...

AI Technical Summary

Problems solved by technology

Through the investigation of grounding resistance measurement, it is found that the wires as long as 20 and 40 meters are often twisted and knotted. In the process of measuring the grounding resistance of multi-base towers, personnel often need to spend a lot of time on laying out the wires, which seriously affects Improve line crew productivity

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