From Joining To Actual Operation: Key Points Of Switch Socket Layout And Electrical Appliance Configuration
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The top grounding hole of Wall Switch must be firmly connected to the grounding wire, tightly connected, and connected correctly. It must not be left unconnected. The remaining two holes are connected according to the rule of "left zero and right live". It is particularly important that the neutral wire and the protective grounding wire must not be connected incorrectly. In other words, they are connected as one.
