Abstract: The voltage detection module according to the invention comprises: a first electric terminal; a second ground terminal; a load resistor, connected to the first electric terminal; a main gas-filled spark gap, arranged in series between the load resistor and the second terminal; and a main capacitor, connected, on the one hand, to a first middle point situated between the load resistor and the main gas-filled spark gap and, on the other hand, to the second terminal. The voltage detection module also comprises a light source connected in series between the main gas-filled spark gap and the second terminal, the light source and the main gas-filled spark gap being separate from one another. The voltage detection module comprises an additional stage capable of limiting the voltage applied to the terminals of the gas-filled spark gap to a threshold voltage chosen so as to prevent the gas-filled spark gap from always being on.

Abstract: The voltage detection module according to the invention comprises: a first electric terminal; a second ground terminal; a load resistor, connected to the first electric terminal; a main gas-filled spark gap, arranged in series between the load resistor and the second terminal; and a main capacitor, connected, on the one hand, to a first middle point situated between the load resistor and the main gas-filled spark gap and, on the other hand, to the second terminal. The voltage detection module also comprises a light source connected in series between the main gas-filled spark gap and the second terminal, the light source and the main gas-filled spark gap being separate from one another. The voltage detection module comprises an additional stage capable of limiting the voltage applied to the terminals of the gas-filled spark gap to a threshold voltage chosen so as to prevent the gas-filled spark gap from always being on.