I once changed the lights on the ceiling of a shopping mall and was electrocuted by the zero line? H

1 answers

Anonymous users2024-01-24

When the zero line (points A and B in the figure) is open, the phase wire is connected to point A through the electrical appliance, and if it touches point A, it is equivalent to connecting the electrical appliance and the human body resistance in series to the earth, and the electrical resistance is usually smaller, so the voltage distributed by the human body is larger, which will cause an electric shock accident. Therefore, it is not possible to set the switch on the zero line.

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