What are the incorrect grounding methods - Solutions - Huaqiang Electronic Network

Brand AVX TPSE226M035R0125 Low Impedance Tantalum Capacitor - AVX 22

SMD Aluminum Electrolytic Capacitor

Electronic Scale Crystal Oscillator 3.2x2.5mm 3225, 16MHz (16.000MHz), 12PF, 10PPM, 20PPM, 30PPM

Shunuo Varistor / ESD Varistor / Complete Product Line / Sunlord First-Class Agent

(1) Some users only connect the neutral line on the left side of a three-pin socket and leave the right side (live wire) unconnected, while the grounding pin is not used at all. Others may even reverse the live and neutral wires in the socket. While this might not cause issues when the electrical appliance is working properly, it removes the safety protection function. If the device leaks electricity, it could lead to electric shock accidents.

(2) In some cases, the grounding terminal of the socket is directly connected to the neutral line. This means that the working neutral line is being used as the protective ground line. However, if the wiring method involves a phase and neutral reversal, and the neutral line has a fuse or switch, then once the neutral line is disconnected, it becomes extremely dangerous. Therefore, the protective ground wire must never be shared with the neutral wire.

(3) Some users attempt to use a wire or metal rod as a grounding point without checking whether the grounding resistance is suitable. They simply connect it to the metal casing of appliances like refrigerators or washing machines. These practices do not meet safety standards and can lead to serious risks.

(4) In high-rise buildings, some users even use tap water pipes or gas pipes as grounding bodies. This is highly dangerous because the surfaces of these pipes are coated with anti-corrosion paint, and the joints are sealed with plastic tape. Additionally, underground water pipes may be made of PVC, which is not conductive. Using such materials for grounding offers no safety assurance. Using gas pipes as grounding points is especially risky—if an accident occurs, the consequences could be catastrophic.

To ensure personal safety and proper functioning of electrical equipment, several key parties must work together. The power supply department should maintain a stable and high-quality distribution network and install reliable, fast-acting protection devices. The construction industry needs to employ skilled and professional teams. Manufacturers must provide high-quality products and excellent customer support. Lastly, users should develop a strong awareness of safe electrical usage and take personal responsibility for their own safety. Only through collective effort can we ensure that electrical equipment is used safely and effectively in our daily lives.