The fuel used in diesel generator sets is mainly light diesel oil, and its lightning is generally not lower than 65 ° C, higher than the ambient atmospheric temperature. Diesel is a flammable liquid that may cause a fire hazard. A power station that stores diesel should be classified as an H-1 fire hazard. Generally, the main plant and auxiliary buildings of diesel power stations on the ground, including a smoke exhaust and water supply buildings, are all equipped with lightning protection measures for lightning protection. For lightning protection, lightning rods or lightning protection belts shall be installed in buildings and structures where lightning strikes are likely. The grounding device should form a ring grounding body around the building. The down conductor of the lightning protection device should not be less than 2, and the spacing should not exceed 30m.
In order to prevent lightning waves from invading the building along the low-voltage overhead line, the insulator iron feet should be connected to the grounding device of lightning protection and electrical equipment at the household. The overhead metal pipes entering the power station should be connected to the above grounding device at the place of entry.