静电的危害来自于带电体的相互作用。当飞机机身与空气、水蒸气、灰尘等颗粒摩擦时，会使飞机带电。如果不采取措施，将严重干扰飞机无线电设备的正常工作，使飞机变聋变瞎。在印刷厂，书页之间的静电会使书页粘在一起，难以分离，给印刷带来麻烦；在制药厂。因为静电会吸引灰尘，所以药物的纯度不会达标；电视开机时，屏幕表面的静电容易吸附灰尘和油污，形成灰尘膜，降低图像的清晰度和亮度；混纺衣服上常见的难以拍掉的灰尘，也是静电夯的鬼。
The second biggest hazard of static electricity is that it may explode because of the ignition of some flammable objects by electrostatic sparks. In the dark night, when we take off our nylon and woolen clothes, there will be sparks and "beep" sounds, but this is basically harmless to the human body. However, on the operating table, except for electric spark, it will cause the explosion of anesthetic, which will hurt doctors and patients; In coal mines, it will cause gas explosion, which will lead to the death and injury of workers and the mine will be scrapped.