Wind-resistant reinforcing method for lightning arrester of substation framework

Abstract

The invention discloses a wind-resistant reinforcing method for a lightning arrester of substation framework, which comprises the steps of preparing a spiral guide plate, welding the spiral guide plate on the side surface of a lightning arrester steel pipe, cleaning the lightning arrester steel pipe and the spiral guide plate on the side surface of the lightning arrester steel pipe, installing a fixing device at the bottom of the lightning arrester pipe body, transporting a lattice-type steel beam to a position at which the lattice-type steel beam needs to be installed, performing installationfastening on the fixing device at the bottom of the lightning arrester pipe body and the lattice-type steel beam, performing welding reinforcement on the junction of the bottom of the lightning arrester pipe body and the lattice-type steel beam, and carrying out corrosion prevention work on the welding part and reinforcement diagonal bracing. According to the reinforcing method, the crescent ribshaped guide plate is additionally arranged at the outer surface of the built lightning arrester steel pipe in order to relieve across-wind vortex-induced vibration caused by vortex shedding, and connection is performed in a welding mode so as to achieve a purpose of relieving the vortex-induced vibration of a lightning arrester rod, so that the occurrence of a wind destruction accident of the lightning arrester is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of lightning rods, in particular to a wind-resistant reinforcement method for lightning rods in substation structures. Background technique [0002] Lightning protection devices against direct lightning strikes mainly include lightning rods. The lightning protection principle of the lightning rod as a lightning terminal is: the lightning rod is connected to the ground through a wire, and forms an equipotential difference with the ground. Using its own height, the electric field of the lightning cloud whose electric field intensity increases to the limit value is distorted, and begins to ionize and lead downward. Discharge; the lightning rod produces a tip discharge under the action of a strong electric field, forming an upward leading discharge; the two meet to form a lightning path, and then pour into the ground to achieve the lightning protection effect. In fact, the lightning rod is a lightning rod, whic...

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Problems solved by technology

[0003] At present, lightning rods are used in many substation transmission lines. However, traditional lightning rods are prone to wind-induced vibration under the action of wind load. Continuous wind-induced vibration will greatly increase the probability of wind-induced damage to substation lightning rods.

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