Test on the Attenuation of Lightning Strike Current by a New Type of Lightning Rod
Abstract：In view of the obvious limitations of lightning rods in preventing direct lightning strikes from damaging electronic equipment, as well as the shortcomings of insufficient upward leader length and inability to attenuate the current at the lightning strike point, a new type of lightning rod (also known as a lightning interceptor) capable of effectively attenuating the current at the lightning strike point was successfully developed in China in 2019. To quantitatively understand the attenuation efficiency of the new lightning rod on the current at the lightning strike point, this experiment was conducted based on the physical characteristics of multi-pulse lightning discharge, the charge transfer during each stage of lightning discharge, and the energy spectrum of lightning waves. The experimental results showed that the attenuation efficiency of the new lightning rod for the current at the lightning strike point can reach 63.36% to 79.93%. It also verified the feasibility, effectiveness, and scientific nature of designing and manufacturing the new lightning rod by utilizing the characteristics of lightning electromagnetic wave transmission in dispersive waveguide resonant cavity structures.
Keywords：New Lightning RodLightning Electromagnetic WaveAttenuation of Lightning Strike CurrentVerification Test
Publication Date：2025-12-20
Online Publishing Date：2026-01-07(First online date of this platform, not the publication date of the document)
Pages：4( 75-78 )