静电是宏观范围内相对静止的 ,暂时失去平衡的正电荷或负电荷。静电经常是我们身边的不速之客。生产中是如此 ,生活中也是如此。有时 ,它严重妨碍正常工作 ;有时 ,它会给人以突然的打击 ,即使人遭到静电电击 ;更有甚者 ,它可能引起神秘的火灾或爆炸。　　一、静电是火灾和爆炸 Electrostatic is a relatively static macro-range, temporarily losing the balance of positive or negative charge. Static electricity is often the uninvited guest around us. This is true in production, and in life as well. Sometimes it seriously hampers normal work; at other times it gives a sudden blow, even when a person is subjected to an electrostatic shock; moreover, it can cause a mysterious fire or explosion. First, static electricity is a fire and explosion