现代家庭电气化程度越来越高,用电安全是一个非常重要的问题.有同学认为家庭电路中都安装了保险丝,有了它就“电”不死人了,可放心使用电,这种观点不但错误,而且很危险.当电路中电流达到熔断电流时,保险丝就能迅速熔断,切断电路保证线路的安全.人们歌颂保险丝的“自我牺牲精神”,说它“烧毁自己,换来整个电 The level of electrification in modern homes is getting higher and higher, and electricity safety is a very important issue. Some students think that fuses are installed in the household circuit. With it, people will be “electrically” undead and can use electricity safely. This notion is not only Wrong, and very dangerous. When the current in the circuit reaches the fusing current, the fuse can quickly blow, cut off the circuit to ensure the safety of the line. People eulogize the “self-sacrifice spirit” of the fuse, saying that it "burns itself, in exchange for the entire electricity