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 3.2*2.5mm 3225 16M (16.000MHZ) 12PF 10PPM 20PPM 30PPM

Shunuo varistor / ESD varistor / product complete / Sunlord first-class agent

(1) When some users use the three-pin socket (head), they only connect the neutral line at the left end of the socket, and the right end is connected to the phase line. The grounding end is empty; some users reverse the phase and neutral lines in the socket. Although this has no effect when the electrical equipment is normal, it loses its safety protection function. If the electrical equipment leaks, there may be an electric shock accident.

(2) The grounding end of the socket is directly connected to the zeroing end. In practice, the working zero line is used as the protection zero line. However, if the wiring method encounters the phase and neutral line connection, the working zero line has a fuse, a knife gate, etc., and once the neutral line is disconnected, It will be very dangerous. Therefore, the protective ground wire must never be shared with the neutral wire.

(3) Some users insert a wire or steel bar on the ground, and regardless of whether the grounding resistance is suitable, use a wire to connect it to the metal casing of household appliances such as refrigerators and washing machines. These are not in line with the requirements.

(4) Users of high-rise residential buildings even use tap water pipes or gas pipes as grounding bodies, which is quite dangerous. Because the surface of the water pipe and the gas pipe are coated with anti-corrosion paint, in addition, the joints of the tap water pipe are sealed with plastic raw material tape, and some underground pipes of the tap water pipe are made of PVC pipe, and these are all bad. There is no safety guarantee for the conductor. Use gas pipes as grounding bodies. If an accident occurs, the consequences will be unimaginable.

In order to ensure personal safety and normal use of electrical equipment, the power supply department shall provide a stable quality distribution network and a set of safe, reliable, fast and sensitive equipment protection devices; the construction department shall have a technically competent construction team; the electrical equipment manufacturers shall provide High-quality products and perfect service; users must also have a certain sense of safe use of electricity and establish a strong sense of self-protection. Only when all parties work together will the electrical equipment be fully, effectively and safely used in our daily lives.