【摘要】 许多物理教材以尖端放电现象为例 ,说明避雷针“避雷”原理 ,本文从现场监测结果出发 ,说明避雷针不能干扰云中电荷分布 ,也不能影响雷击的发生 ,避雷针释放的离子流不能大量“中和”云中电荷 ,以阻雷击发生更多还原

【Abstract】 Based on the field measured lightning parameters it is concluded that lightning rods can not provide enough corona to avoid a lightning stroke.Therefore,it is unreasonable to explain the mechanism of lightning rods with the principle of neutralizing effect.更多还原