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为合理地防护雷电对人体带来的伤害,需要研究雷电对人体的伤害机理。介绍了雷电对人体的危害方式和雷电危害能量阈值。通过建立人体电路模型,利用ATP软件模拟雷电和与人体模型间相互作用,具体分析不同土壤电阻率情况下,跨步电压、接触电压和转移电位作用下流经心脏的电流,计算导致心室纤维性颤动的比能量。仿真结果表明:土壤电阻率的增大有助于降低跨步电压和转移电位对人体的伤害;接触电压更容易给人体带来致命性危害。雷电作用下人体伤害机理需要作进一步研究。
In order to rationally protect the human body from thunder and lightning damage, it is necessary to study the mechanism of lightning damage to the human body. Introduced the way of lightning to the human body and the thunder and lightning damage energy threshold. Through the establishment of the human body circuit model, the use of ATP software to simulate the thunder and the interaction with the human body model, the specific analysis of different soil resistivity circumstances, the step voltage, contact voltage and transfer potential under the action of current through the heart to calculate the cause of ventricular fibrillation Than the energy. The simulation results show that the increase of soil resistivity will help to reduce the voltage and potential transfer potential damage to human body; contact voltage is more likely to cause fatal harm to the human body. Under the action of lightning, the mechanism of human injury needs to be further studied.