Strain iron tower drainage system for power transmission line

Abstract

The invention discloses a strain iron tower drainage system for a power transmission line, which consists of a drainage soft sub-line, jumper spacers, an aluminum pipe cage type rigid jumper and a jumper insulator string, wherein the aluminum pipe cage type rigid jumper is suspended on a cross arm of an iron tower through the jumper insulator string; the two ends of the aluminum pipe cage type rigid jumper are connected with strain string drainage wire clips on two ends of the cross arm of the iron tower respectively and are provided with the jumper spacers, or even counter weight groups whennecessary; the aluminum pipe cage type rigid jumper is a low-noise corona-free aluminum pipe cage type jumper and mainly comprises hollow aluminum alloy pipes, aluminum pipe spacers, connectors, counter weight groups and anti-corona balls; and the connectors joint the two hollow aluminum alloy pipes through the aluminum pipe spacers and are supported by the aluminum pipe spacers, and thus, an aluminum pipe cage structure having a regular polygon section. The system has the characteristics of saving construction cost, eliminating corona, effectively lowering audible noise near the strain tower, along with elegant and coordinate appearance, light weight, small part consumption, high machinability, convenience of transportation and installation, and the like.

Description

technical field [0001] The invention relates to a strain tower drainage system for a power transmission line, in particular to a tension tower drainage system for a power transmission line using a low-noise, corona-free aluminum alloy tube cage type rigid jumper. Background technique [0002] At present, the development of my country's electric power industry is advancing by leaps and bounds, and the construction of UHV power grids has become an inevitable trend of power transmission. In the transmission line, the diversion jumper of the tension-resistant corner tower is an important component related to the reliable operation of the transmission line. The tension insulator string and the jumper of the UHV power transmission line are all long, and the wires adopt a 6-8 split structure, reducing Jumper sag and its windage offset are effective methods to reduce the size of the tension tower head and reduce the construction cost. For this reason, rigid jumpers are used in UHV ...

AI Technical Summary

Problems solved by technology

The bracket adopts multi-section steel pipe flange connection type, which is more convenient for installation and transportation. Compared with the aluminum tube type rigid jumper, the connection points in the middle of the drainage line are reduced, and the drainage is more reliable, but the wire is difficult to keep straight on the bracket, and there are laces Phenomenon

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