Lead wire junction box for overhead conductor insulation test

Abstract

The invention provides a lead wire junction box for overhead conductor insulation test, which comprises a lead wire. The lead wire junction box is characterized in that the lead wire junction box further comprises an insulated wire box; the box body is provided with a stay wire hole; the box body is internally provided with an insulated horizontal wire reel; two ends of the horizontal wire reel are supported by two side walls of the wire box and penetrate through the side walls; one end of the horizontal wire reel is provided with an insulated rotating handle fixedly, and the other end is provided with an axial hole; the bottom of the axial hole is communicated with a radial hole; one end of the lead wire penetrates through the radial hole and the axial hole of the wire reel and is connected with an insulated measuring instrument, and the other end is wound on the wire reel and penetrates through the stay wire hole for being exposed to outside. According to the lead wire junction box, through using the insulated wire box and placing the lead wire in the insulated wire box, the insulated overhead state of the lead wire in the insulation test process can be realized, thereby performing a function of keeping high insulation safety, effectively ensuring personal safety of using personnel. Furthermore in wire coiling and uncoiling processes, a handle can be rotated for realizing quick wire coiling and uncoiling, thereby realizing simple and convenient operation.

Description

technical field [0001] The invention relates to a lead junction box for insulation testing of overhead wires. Background technique [0002] High-voltage lines refer to transmission lines that transmit voltages above 10KV (including 10KV). With the construction of power grids, high-voltage lines have become an important part of the transmission network. High-voltage power transmission in cities generally uses cables with insulating layers for underground transmission, and in the field often uses towers to carry overhead wires for transmission. Therefore, the overhead wires are all with high voltage, and the daily maintenance of the high-voltage overhead wires is very important. If the leakage of the overhead wires occurs, it will cause a fire in the slightest, and threaten personal safety in the worst case. [0003] And as an important daily maintenance of the overhead wire is to carry out the insulation test to it, the overhead wire insulation test of the prior art is to us...

AI Technical Summary

Problems solved by technology

[0004] In the overhead wire insulation test of the prior art, the lead wires are generally dragged on the ground. Since the lead wires carry high voltage, they can only be used in the concrete ground or relatively dry areas under the tower, and the weather is clear. Under the circumstances, if the insulation test of overhead wires is carried out in the environment of mountainous weeds, waterlogged areas or other harsh environments, because the insulation protection degree of the lead wires is not high, it is easy to cause conduction and the staff dare not use them.

If the insulation material is laid under the lead wire, the operating cost will increase. Therefore, in the overhead wire insulation test method of the prior art, the use of the lead wire is not safe enough and the use is limited by the working environment; Under the circumstances, the process of pay-off and take-up is too long, wasting time

Images