1. The main equipment to prevent direct lightning strike is the lightning rod, its role is to attract lightning to the lightning needle itself and safely introduce lightning current into the earth, thereby protecting the equipment. When the substation is equipped with a lightning rod, all equipment should be in the range of lightning rod protection, lightning rod by the flasher and lead wire, grounding device and so on.2. The determination of the location of the lightning rod is the key step in the lightning protection design of substation. For substations with 100kV and above, because of the high insulation level of such voltage-grade distribution units, the lightning rod can be mounted on the structure of the power distribution unit.