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随者改革开放的不断深入。我国林区电气化程度不断提高，电能在林区的广泛利用，牵动了林区经济的迅速发展。但是，我们也应看到，由于林区电气设备的不断老化和人们普遍缺乏安全用电知识的实际情况，致使电气事故时有发生，在众多触电事故中，220V是发生事故最多的电压，林区
With the deepening of reform and opening up. The electrification degree of our country’s forest area is increasing constantly. The extensive use of electric energy in the forest area affects the rapid economic development in the forest area. However, we should also see that due to the continuous aging of the electrical equipment in the forest areas and the general lack of practical knowledge of safe electricity consumption, accidents have always occurred. Among the many accidents involving electric shocks, 220V is the highest accident voltage. Lin Area