The reason for the leakage of the range hood is that there is no grounding wire or the grounding wire is not properly connected. Many of them are equipped with three-phase plugs, but most of them are just furnishings, and there is no real grounding, which poses a safety hazard.

2.

If there is no grounding or poor grounding, static electricity or internal leakage generated in the working process of the range hood will be output through the shell of the range hood, resulting in leakage.