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触电,是指人体接近或接触到带电体,在人体与带电体之间产生闪击或持续性放电电流,造成人体的各种伤害,甚至危及生命。了解触电原因,杜绝触电现象,确保用电安全具有十分重要的意义。一、触电的形成按人体触及带电体的方式不同,触电有以下5种形式:(1)单相触电:人体触及某一相带电体时,电流从带电体通过人体流入大地。(2)两相触电:人体两处同时触及两相带电体时,电流从一相带电体通过人体流入另一带电体。(3)高压电弧触电:当人体接近高压带电体到一定距离时,带电体和人体之间的空气被击穿,产生电弧。
Electric shock means that the human body is close to or in contact with the electrified body, causing flashing or continuous discharge current between the human body and the electrified body, causing various injuries to the human body and even life-threatening. It is of great significance to understand the causes of electric shock, eliminate electric shocks, and ensure the safety of electricity. First, the formation of electric shock in accordance with the way the human body touches the charged body is different, the following five types of electric shock: (1) single-phase electric shock: When the human body touches a phase of the charged body, the current flows from the charged body through the human body into the earth. (2) Two-phase electric shock: When two parts of the human body touch the two-phase charged body at the same time, current flows from the one-phase charged body into the other charged body through the human body. (3) High-voltage arc electric shock: When the human body approaches a high-voltage electrified body to a certain distance, the air between the electrified body and the human body is broken down and an electric arc is generated.