随着现代社会的发展,在日常生活中,人们是越来越离不开电。在家庭方面,大到用交流电源的空调、冰箱、电热水器等,小到用直流电池的电动剃须刀、小手电筒、电子表等,无不与电有关。但对于何为安全电压,人在何种情况下才不会受到电击危险,对于许多人来说服却是语焉不详。也许有的 With the development of modern society, people are more and more inseparable from their daily lives. In the family, AC electric air conditioners, refrigerators, electric water heaters and the like, electric razors that are as small as DC batteries, small flashlights, electronic watches, etc., are all related to electricity. But for what is a safe voltage, people are not under any risk of electric shock, and for many people it is not clear. Maybe there