Dynamic self-powered switch integrated with high-voltage starting

The utility model discloses a dynamic self-powered switch integrated with high-voltage starting. The cable comprises a main cable and a low-voltage cable, a switch box is arranged between the main cable and the low-voltage cable, the extending ends of the main cable and the low-voltage cable penetrate through sealing rubber sleeves to reach the interior of the switch box, the main cable and the low-voltage cable are located on the opposite sides of the switch box, and a high-voltage cable is embedded in the side, located on the low-voltage cable, of the switch box. According to the utility model, when the voltage sensor of the low-voltage cable detects that the pressure exceeds the bearing range of the low-voltage cable; the main cable and the low-voltage cable form an open circuit and form a closed circuit with the high-voltage cable, and the high-voltage cable is powered off and the low-voltage cable is powered on when the voltage sensor of the high-voltage cable detects that the pressure is lower than the