在电工学中，将电气部分的任何部分与大地之间作良好的电气联接称为接地。接地是电气防火安全技术的重要内容，在工业生产和日常生活中为了保证电力系统设备和人身安全需要采取各种各样的接地措施，如防雷接地、防静电接地、保护接地和工作接地等。接地是保证设备正常工作、防 In electrotechnics, making a good electrical connection between any part of the electrical part and the earth is called grounding. Grounding is an important part of electrical fire safety technology. To ensure the safety of power system equipment and personal safety in industrial production and daily life, various grounding measures are required, such as lightning protection grounding, anti-static grounding, protective grounding, and work grounding. . Grounding is to ensure normal operation of the equipment and prevent