摘要
阐述了计算机系统安全接地的必要性及逻辑接地、屏蔽接地、功能接地及安全接地的基本概念。导出了接地电阻的计算公式 。
The necessity of earth connection and some basic concepts such as logic earth connection, shield earth connection functional earth connection and secure earth connection are described. A calculation formula for earth resistance is derived. Measures for reducing earth resistance are presented.
关键词
逻辑接地
安全接地
接地电阻
计算机系统
logic earth-connection
secure earth-connection
earth resistance
