Is the Wuling Hongguang Mini Grounding Device Safe?
2 Answers
The Wuling Hongguang Mini grounding device is not safe because when using the grounding device, some residual current from the charging facility will flow into the vehicle, making the vehicle electrified, which cannot prevent electric shock accidents in advance. Definition of Grounding Module: The grounding module, or grounding device, is primarily composed of non-metallic materials. It consists of non-metallic minerals with good conductivity and stability, along with metal electrodes. Principle of Grounding Module: The working principle of the grounding device is to disconnect the actual ground wire and connect a 16.42kΩ resistor to the neutral wire, deceiving the portable charger (or charging pile) and the vehicle to bypass the grounding detection. Once the neutral and live wires are reversed, the ground wire will be directly connected to the live wire through the 16.42kΩ resistor.
As a frequent driver of the Wuling Hongguang Mini, I have some concerns about the safety of the grounding adapter. While it's convenient for charging, especially in older residential areas where sockets lack grounding wires—it simulates grounding to prevent leakage—the main issue lies in quality. I once tried a cheap one that overheated severely during charging and even caused the charger to trip. Later, I switched to a certified brand, which worked stably. However, grounding adapters are not a long-term solution due to their poor reliability, which can easily lead to short circuits or overloads. Even for small EVs like the Wuling Mini, which have relatively low charging currents, safety should never be overlooked. I recommend prioritizing the installation of a proper charging station or using public charging points. If you must use a grounding adapter, choose one with a CE certification, test its grounding effectiveness before use, and avoid operating it in rainy or humid conditions. Regularly inspect the device’s condition—safety comes first, especially since EVs involve high-voltage circuits, and negligence is not an option.
