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雷电是一种常见的自然现象。水蒸气受热上升,凝结成水滴,水滴逐渐变大,在自重作用下被上升的气流切割成带正电倚的较大水滴和带负电荷的微细水滴。较大的水滴一般到地面变成雨,部分停留在空中。带相同电荷的水滴分别积聚,形成带电的雷云。随着雷云的积聚,雷云之间以及雷云和大地之间的电场强度逐渐增强,当达到25～30kV/cm 时,空气被击穿,开始放电。所谓雷电现象就是雷云和雷云之间,以及雷云和大地
Lightning is a common natural phenomenon. The water vapor rises by heat and condenses into water droplets, and the water droplets gradually become larger. The air flow that is lifted under the action of its own weight is cut into positively lean water droplets and negatively charged fine water droplets. Larger droplets generally turn into rain on the ground, and some stay in the air. Water droplets with the same charge accumulate to form a charged thundercloud. With the accumulation of thunderclouds, the electric field strength between thunderclouds and between thunderclouds and the earth gradually increases. When it reaches 25 to 30kV/cm, the air is broken down and discharge begins. The so-called lightning phenomenon is between thunderclouds and thunderclouds, and thunderclouds and earth.