摘要
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 protect human body from lightning hazard, it is necessary to analyze the different aspects of lightning mechanism. Mechanisms of lightning injury and survivability threshold are introduced. Simulations of the human body model are conducted by using the ATP. The step voltage, touch voltage and transferred voltage are evaluated to estimate the current through the body＇s heart. The ventrieular fibrillation of the heart is also calculated. Simulation results show that, increasing soil resistivity can reduce the hazards to human body caused by step voltage and transferred voltage; hazards caused by touch voltage are more fatal to harm body. Lightning injury mechanism still needs to make further studies.
出处
《电瓷避雷器》
CAS
北大核心
2016年第4期74-77,82,共5页
Insulators and Surge Arresters
基金
国家自然科学基金项目(41175003)
江苏高校优势学科建设工程资助项目(PADA)
关键词
雷电伤害
跨步电压
接触电压
转移电位
lightning hazard
step voltage
touch voltage
transferred voltage
