直击雷的防护通常采用避雷针、避雷带、避雷线、避雷网做接闪器,把雷电流通过良好的接地装置迅速而安全地输入大地。通常的避雷装置能大大减小被雷击的可能性,但不能保证百分之百地避雷,即使能生产出这种装置,其造价也是十分昂贵的。1　避雷装置的避雷原理　　常用的接闪装置都 The direct lightning protection generally uses lightning rods, lightning protection strips, lightning protection cables, and lightning protection nets as lightning receptors, and lightning currents are quickly and safely input into the earth through a good grounding device. Normal lightning protection devices can greatly reduce the possibility of being struck by lightning, but they cannot guarantee 100% lightning protection. Even if such devices can be produced, their cost is very expensive. 1 Lightning Protection Principles of Lightning Protection Devices