Crossing bridge stand of power transmission lines and construction technology thereof

Abstract

The invention discloses a crossing bridge stand of power transmission lines and belongs to the field of electricity stringing engineering. The crossing bridge stand is designed to increase the safety of live-line crossing construction. The crossing bridge stand includes a first bearing tope, a second bearing rope, a net blocking apparatus and a bearing apparatus. One ends of the first bearing rope and the second bearing rope penetrate corresponding left-side bearing pulleys and are anchored to the ground, and the other ends penetrate corresponding right-side bearing pulleys and are anchored to the ground. The net blocking apparatus suspends on the first bearing rope and the second bearing rope. The net blocking apparatus is anchored to the ground through a left-side insulating traction line and a right-side insulating traction line. The net blocking apparatus forms a channel through the extending direction of the first bearing rope and the second bearing rope. The crossing bridge stand not only forms an insulating barrier below a line, but also forms an insulating barrier on two sides of the line, such that a clearance protection distance is formed to a crossed object upon spreading of the line, which increases safety of the live-line crossing construction. The construction technology reduces construction procedures, saves human resource and time cost.

Description

technical field [0001] The invention belongs to the technical field of power line stringing construction, and in particular relates to a power transmission line insulation spanning bridge frame and a construction process thereof. Background technique [0002] With the rapid development of power grid construction, there are more and more transmission line wiring projects spanning existing power lines, railways, and expressways. The traditional spanning construction often uses moso bamboo to build the spanning frame, but using moso bamboo to set up the spanning frame requires good geographical conditions, and when the height of the spanned object is too high or the span is too large, the spanning frame is difficult and expensive to erect And the security is not high. [0003] The live spanning device that appeared in recent years overcomes the defects of the traditional spanning frame, and realizes the simplicity and portability of the live spanning device. For example, the ...

AI Technical Summary

Problems solved by technology

However, the network sealing device disclosed in this patent application is a planar type. When the wire is erected above the network sealing device, the two sides cannot form a limit for the wire, and no insulation barrier is formed on both sides of the wire. If the cable slips out of the network sealing device On both sides, the purpose of insulation cannot be achieved

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