Phase-to-phase insulation and isolation device for power distribution live working lines and its use method

Abstract

The invention discloses a device for insulating and isolating between phases of a power distribution live line and a method for using it, which includes three telescopic mechanisms and a plurality of rotating shafts installed at both ends of the telescopic mechanism. Three wire fixing devices; stretch the wires, adjust the first telescopic mechanism, the second telescopic mechanism, and the third telescopic mechanism, and stretch the live wires; tie the insulating rope to the insulating rope hanging ring, and the staff will adjust the wire according to the need. The device is adjusted to ensure the normal operation of erecting and replacing the electric pole. After the erection and replacement of the electric pole is completed, the device is removed. The invention performs real-time telescopic adjustment on the insulating rod through mechanical transmission, which is convenient and labor-saving to operate and has strong adjustability; the wire fixing device can be used to clamp and fix the three-phase wires; Replacing the safe distance requirements of the poles ensures the personal safety of the staff and improves work efficiency.

Description

technical field [0001] The invention belongs to the technical field of power supply, and in particular relates to a phase-to-phase insulation isolation device for a power distribution live working line and a method for using the same. Background technique [0002] With the rapid development of the current economy and society, people have higher and higher requirements for the reliability of power supply; for the normal power-on of users, live work has been vigorously promoted in the system; currently it involves live erection and replacement of poles on 10kV overhead lines. The number is increasing year by year. In the process of erecting and replacing poles with electricity, the phase conductors on both sides are usually stretched and fixed by insulating cross-arms. Due to the limitation of quality and size, the distance between the phase wires on both sides is limited, and it is difficult to meet the safety distance requirements for live assembly and replacement of poles. ...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the current economy and society, people have higher and higher requirements for the reliability of power supply; in order for users to connect to electricity normally, live work has been vigorously promoted in the system; currently it involves live erection and replacement of poles on 10kV overhead lines. The number is increasing year by year. In the process of erection and replacement of electric poles, insulating cross arms are usually used to spread and fix the phase wires on both sides. Due to the limitation of the weight and size of the load, the distance between the phase conductors on both sides is limited, and it is difficult to meet the safety distance requirements for live assembly and replacement of poles. In addition, the suspension conductors of the bucket truck are poor in stability and difficult to operate. The entire operation process is time-consuming and laborious. Bigger security risk

[0003] After retrieving the patent number 201520200764.5, an insulating strut was developed. It adopts a linear telescopic structure, which only involves the expansion and fixation of the phase wires on both sides, and does not take measures to fix the middle phase wires. The pole connection is fixed, the adjustment is poor, time-consuming and labor-intensive; Patent No. 201720595977.1 develops a new type of telescopic wire insulation support pole, which adopts an inverted "T" shape structure, and the stability is slightly poor. Manually adjust the position of the insulation operation movable rod on the insulation operation fixed rod according to the interval between the wires, and then connect the two fixedly through the thumb screw, which is poor in adjustment, time-consuming and labor-intensive.

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