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During the installation of cryogenic liquid storage tanks, grounding must be carried out whether indoors or outdoors. This is because static electricity may be generated during the filling and draining of low-temperature liquid storage tanks, and grounding can effectively prevent the occurrence of static sparks, thereby reducing safety hazards. The specific grounding requirements are clearly stipulated in China’s \"Safety Technical Inspection Regulations for Mobile Pressure Vessels\". The storage tank must be grounded using copper wire with a cross-sectional area of not less than 10 square millimeters, and the grounding resistance should not exceed 10 ohms. Furthermore, for liquids such as liquid nitrogen, liquid argon, and liquid oxygen, which have highly reactive gas properties, special care must be taken to prevent static electricity sparks caused by poor grounding from igniting the gases and resulting in dangerous accidents. Whether installed indoors or outdoors, the requirements regarding grounding are essentially the same, as they are all aimed at ensuring the safe operation of the storage tank. However, in practice, due to factors such as terrain and landscape as well as the layout of facilities, the specific grounding methods and measures may vary, and design must be carried out based on the actual conditions. .