Direct effect testing device for lightning current

Abstract

The invention relates to a direct effect testing device for lightning current. The testing device comprises a lightning current first return stroke component loop, a lightning current middle current component loop, a lightning current continuous current component loop, a lightning current subsequent return stroke component loop, a time sequence trigger circuit, a direct effect discharge rack and the like. According to the device, effects of simulating a complete lightning current process in nature and checking combustion, corrosion, explosion, structural distortion, strength reduction and the like caused to a tested object by high-temperature and high-pressure shock wave and electromagnetic force accompanied during attachment of lightning arc can be simultaneously produced, and each component of the lightning current can also be produced respectively for independently checking single lightning current characteristics. The testing device fills the blank about similar devices in China, and superior equipment is provided for direct effect testing of the lightning current.

Description

technical field [0001] The invention relates to a direct effect test device, in particular to a lightning current direct effect test device. Background technique [0002] At present, there are many standards on the lightning current waveform at home and abroad. Generally speaking, the lightning current waveform is divided into four components: the first strike, the intermediate current, the continuous current and the follow-up strike. Lightning damage is not only related to the characteristics of lightning objects, but also related to the characteristics of lightning current. The characteristics of four aspects of lightning current are usually considered: current peak value, current maximum rate of change, current versus time integral, and current square versus time integral. In the research on the damage of lightning current arc to metal lightning terminal ablation, an important problem at home and abroad is how to simulate the whole process of lightning arc and lightning ...

AI Technical Summary

Problems solved by technology

In the research on the damage of lightning current arc to metal lightning terminal ablation, an important problem at home and abroad is how to simulate the whole process of lightning arc and lightning discharge more effectively. The "lightning current" of a specific waveform lacks an effective means of continuously and completely simulating the first strike, intermediate current, continuous current and subsequent strike of lightning

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