Label: UPS power supply provides power to equipment after AC power failure to avoid data loss or machine damage, so it is an energy supplier. Such power equipment must take safety precautions. The ground wire is essential. On the one hand, it can effectively protect personal safety and prevent electric shock. On the other hand, good grounding is helpful to eliminate coupling noise interference. The UPS power supply grounding wire requires a separate grounding method for UPS power supply and computer equipment. The grounding resistance value is recommended to be less than 5Ω, and the material is selected. First-class product and construction requires strict requirements, and the grounding point must be far away from the grounding point of the lightning rod.