Method for constructing blocking protection devices of three-phase wire

Abstract

The invention discloses a method for constructing the blocking protection devices of a three-phase wire. The method comprises the steps of S1, putting a to-be-replaced old three-phase wire into a paying-off tackle, wherein the to-be-replaced old three-phase wire comprises an upper-phase old wire, a middle-phase old wire and a lower-phase old wire; fixing the first ends of a plurality of blocking protection devices on a left wire of the lower-phase old wire, and fixing the second ends of the blocking protection devices on the right wire of the lower-phase old wire; adjusting the upper-phase oldwire and the middle-phase old wire to be within the protection range of the plurality of net blocking protection devices; replacing the upper-phase old wire and the middle-phase old wire with an upper-phase new wire and a middle-phase new wire respectively; fixing the plurality of blocking protection devices on the upper-phase new wire or the middle-phase new wire, and fixing the two ends of theblocking protection devices respectively on the left-side wire and the right-side wire of the upper-phase new wire, or fixing the two ends of the blocking protection devices respectively on the left-side wire and the right-side wire of the middle-phase new wire, so that the technical problem that the blocking protection devices are difficult to build when the terrain is uneven is solved.

Description

Technical field [0001] The present application belongs to the technical field of power grid equipment, and in particular relates to a method for constructing a three-phase wire shielding protection device. Background technique [0002] There is a three-phase wire in the existing power grid. The three-phase wire is divided into three phases, specifically the upper-phase wire, the middle-phase wire and the lower-phase wire; the upper-phase wire, the middle-phase wire and the right-phase wire are generally distributed on the same tower. In the vertical direction, each phase conductor includes a left phase conductor and a right phase conductor on both sides of the tower. [0003] The three-phase wire will be aged or damaged, and the aged or damaged three-phase wire will form a bad wire. When a bad wire occurs, the bad wire needs to be replaced to ensure normal power transmission. [0004] Since the bad wire crosses the ground object, in order to prevent the bad wire from falling during ...

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Problems solved by technology

[0005] In view of this, the application provides a method for building a three-phase conductor network sealing protection device, which solves the technical problem of difficulty in building a network sealing protection device when the terrain is uneven

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