A jumper sag measuring device for transmission lines

Abstract

The invention relates to a power transmission line wire jumper sag measurement apparatus, which comprises a left transverse rod, a right transverse rod and a first bush, wherein the right end of the left transverse rod is fixedly connected with the left end of the first bush, the first bush and the right transverse rod form a sleeved connection, the right transverse rod can freely stretch in the first bush, a second bush is connected on the outer wall of the first bush in a sleeved manner, the second bush and a first bearing inner ring form a fixed and sleeved connection, the second bush is provided with a fixed through hole, the second bush is fixed on the first bush through the fixed through hole with a first bolt, the left end of the left transverse rod and the right end of the right transverse rod are respectively and fixedly connected with a snapping connection member, the whole apparatus can form a snapping connection on an insulating connection member through the snapping connection members, a first bearing outer ring is fixedly connected with a connection standard rod, and length scales are engraved on the standard rod. According to the present invention, with the power transmission line wire jumper sag measurement apparatus, the wire jumper sag can be accurately measured, the electric distances of the wire jumper on the tower body and the cross arm can be precisely measured, and the generation of the high-voltage discharge can be effectively prevented.

Description

technical field [0001] The invention relates to a measuring device for a power transmission line, in particular to a jumper sag measuring device for a power transmission line. Background technique [0002] In the process of transmission line construction, in order to ensure that the jumper can maintain a sufficient safety distance from the grounding body under various operating conditions, the sag of the jumper is an important construction parameter. If the sag of the jumper is too large, it may cause discharge to the insufficient safety distance of the tower body when the wind deflects; if the sag of the jumper is too small, it may cause discharge to the insufficient safety distance of the cross arm. [0003] Such as Figure 8 As shown, during the construction and installation process, the sag of the jumper is often judged by the personal experience of the technician, without accurate installation tools; or using a rope to simulate the measurement of the steel-cored aluminu...

AI Technical Summary

Problems solved by technology

[0004] After the jumper is installed, there is no effective measurement tool for the sag measurement. Steel tape is often used for measurement. The measurement error is large, but the minimum electrical distance of the jumper to the tower body and the cross arm cannot be calculated.

Images