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The power socket has a ground wire that meets the requirements.
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Remove the motherboard battery and wait for 10 minutes before getting back on.
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1. The way to release static electricity is to unplug all the external wiring on the main chassis (notebook, you need to remove the battery), and then press the host switch about 5 times, the static electricity inside will be consumed, and then it will be normal to turn on the computer.
2. Connect the real ground wire to the host. Use a regular plug-in board with grounding, the premise is to ensure that the indoor wall electricity has a real ground wire.
3. Connect a ground wire with insulating skin to the heating pipe or metal water pipe on the computer case, generally the current heating pipe has equipotential, even if there is no equipotential connection, it can effectively remove static electricity.
Since the root cause of the live wire is that there is no ground wire installed, the easiest way is to connect a wire directly from the casing, and connect the other end of the wire to the metal water pipe. When connecting, you need to scrape off the anti-rust layer on the water pipe, and tighten it several times. As long as we connect the ground wire, the chassis of the host will not turn red when we test it with a voltage tester.
However, this connection method is a temporary emergency use, and the home must ask a professional electrician to install the ground wire correctly to prevent the water pipe from being energized due to the "formal leakage" of other household appliances, and the injury accident occurs.
The root cause of the computer case being electrified is because there is no ground wire installed in the home or the grounding is poor. Because the computers currently sold on the market are certified by CCC, the power supply certified by CCC must use EMI filter circuit, because the filter circuit has capacitance and communication with the live wire and the ground wire, if the ground wire is not installed at home, there will be more or less "electrified" phenomenon on the surface of the case, which is a normal phenomenon. Even if we use a voltage tester to test the surface of the case to be "red", this static electricity will not cause harm to the human body, but we will occasionally touch the case with a slight "electric shock" feeling.
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1. To solve static electricity, be sure to use a power plug-in board with a ground wire. The chassis can be grounded.
2. Remove the power cord of the computer, continue to press and hold the computer power button for about 20 seconds, and then let go. Static electricity can be dissolved.
Note: Gas pipes should never be grounded with water pipes, the former can cause pipes due to electrical sparks**, and the latter is extremely conductive, and in the event of a short circuit, the leakage current is sufficient to reach the risk of life.
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Ways to release static electricity on the motherboard:
1: Take off the battery on the motherboard and short the positive and negative boards to eliminate the static electricity on the motherboard
2: The power supply will generate a lot of static electricity, but the y capacitance inside the power supply is a leakage capacitance, which can eliminate this part of the static electricity.
If the Y capacitor in the power supply is damaged, and the static electricity is nowhere to be released, the power supply may leakage, and this process is continuous, as long as the hand touches it, there is a touch of the inductance;
3: Various high-frequency circuits on the motherboard will also release radiation to cause static electricity in the chassis
4: People also carry static electricity, which will also be released when touching the chassis.
Introduction to Static Electricity:
Static electricity is a stationary charge, or a non-flowing charge, which can be formed by the redistribution of charges caused by friction, or by the redistribution of charges caused by the mutual attraction of charges. In the dry autumn, the human body often carries static electricity.
Electrostatic discharge and electrostatic gravity will cause harm to aerospace, printing, pharmaceutical, microelectronics and other industries, and will also affect the life and health of the human body. In order to prevent static electricity, people have summarized many anti-static methods in daily life, formulated corresponding anti-static specifications and standards for industrial production, and developed and produced a variety of anti-static products.
Static electricity is harmful, but it can also be used by humans. Using electrostatic engineering, it is possible to carry out the research and development of technologies such as electrostatic precipitation, electrostatic spraying, electrostatic flocking, electrostatic photocopying, and air purification.
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The electrostatic electrode is easy to damage the integrated circuit, so before installation, it is best to touch the grounding conductor with your hands or wash your hands to release the static electricity that may be carried on the body.
You can touch other metal objects, wash your hands, or wear gloves and bracelets to prevent static electricity.
Assemble computers frequently, use anti-static mats and use grounding wires for construction, wear anti-static wrist straps and ionizing fans. The temporary treatment is to touch the grounded conductor with bare hands, and the static electricity can be released by washing the hands, but it will still generate static electricity during the assembly process.
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