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学生对零线(N)和地线(PE)的认识一直很模糊,对其作用认识不足。本文简单阐述了电力零线(N线),地线(PE线)的一些基础知识以及在供电系统中的作用,对学生来说具有很好的参考价值。随着经济发展,普通大众应该了解这些用电基础知识,以便于自己的生活。
Students’ awareness of zero line (N) and ground wire (PE) has been very vague and lack of understanding of its role. This article briefly describes some of the basic knowledge of the power line (N line), ground (PE line) and the role in the power supply system, has a good reference value for students. With economic development, the general public should understand these basic knowledge of electricity in order to facilitate their own lives.