Conductor sag measurement method

Abstract

The invention discloses a conductor sag measurement method. The conductor sag measurement method includes: respectively marking two ends of a conductor as A1 and B1, wherein projections of the A<1> and the B<1> on projections of horizontal planes of O<1> and O<2> are respectively A<0> and B<0>, and remarking the lowest point inside the A<1> and the B<1> is C<1>, wherein the projection of the C<1> on the projections of the horizontal planes of the O<1> and the O<2> is C<0>; measuring distance L between the O<1> and the O<2> and calculating the distance h<2> according to the similar triangle principle; prolonging A<1> and A<0> to D point to enable the B<1>, the C<0> and the D to be on the same plane; acquiring the distance from the A<1> and B<1> to the C<0> is h<0> according to the similar triangle principle, wherein h<0> and h<2> are a conductor sag. With the method, problems about visual errors of a direct sag board measurement method and failure to measurement due to vision limit can be effectively solved, and the problem that block space among towers needs to be known with the theodolite measurement method.

Description

technical field [0001] The invention relates to a measuring method, in particular to a measuring method for wire sag. Background technique [0002] The vertical distance between any point on the wire and the line connecting the suspension point is called the sag of the wire at that point. The current measurement method of wire sag generally adopts manual direct measurement with the help of sag plate, and also uses theodolite measurement. Although the manual measurement method using the sag plate is relatively simple and convenient, when measuring the wire sag between two towers, because of the long distance, the vision is limited, and the visual error will lead to deviations in the measurement results. When the deviation is large, It will lead to insufficient wire-to-ground distance or insufficient crossing distance, which will lead to grid safety accidents. To measure with a theodolite, it must be measured at the bottom of a pole tower or a place very close to the pole to...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for measuring wire sag, which solves the problems of manual direct measurement with sag plate, or measurement with theodolite, which is difficult to measure, and the measurement results deviate and even cause power grid safety accidents.

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