Near-potential operation voltage grade identification and safe distance early warning system and method

The invention discloses a near-potential operation voltage grade identification and safety distance early warning system and method. The system comprises a main controller, an electricity testing controller, a detection controller, an alarm controller and a display. The main controller is connected with the electricity testing controller, the detection controller and the alarm controller through the first wireless transmission module, the electricity testing controller is connected with the electricity testing module, the detection controller is connected with the detection module, and the alarm controller is connected with the sound-light alarm device; the electricity testing controller exchanges data with the main controller through the second wireless transmission module, the detection controller exchanges data with the main controller through the third wireless transmission module, and the alarm controller exchanges data with the main controller through the wireless transmission module. The main controlle