Analyze the principle of static electricity and antistatic
Static characteristics:
* Static electricity is an objective natural phenomenon that occurs in a variety of ways, such as contact, friction, and so on.
* Static electricity is characterized by high voltage, low power, low current and short duration of action.
Principle of static electricity:
Static electricity is a physical phenomenon. The human body is a charged body, such as a needle-like electric shock when shaking hands. This situation is very common in dry weather. When the weather is dry, chemical fiber clothing, carpets, cushions, wallpaper, etc. are subject to friction and static electricity is generated. It has been determined that when a person walks on a carpet, the generated electrostatic voltage exceeds 2000 volts; when the wear or de-fiberized pure polyester clothes are worn, the voltage can reach 50,000 to 100,000 volts. When the electrostatic voltage reaches 2000 volts, the human finger will feel; when it exceeds 3000 volts, an electric spark will be generated, and the tip of the finger will feel acupuncture-like pain; when it exceeds 7000 volts, not only the body will be shocked. It feels that normal ECG conduction will be affected.
Q1: How is static electricity protected??
Static electricity can cause serious harm in many areas. Frictional electrification and human body static are two major hazards in the electronics industry. The main measures for electrostatic protection in the production process are:
1, static leakage
2, dissipation
3, neutralization, humidification
4. Mask and ground.
5, the human body electrostatic protection system mainly includes: anti-static wrist strap, ankle strap, overalls, footwear, caps, gloves or finger sleeves, etc., with electrostatic leakage, neutralization and masking and other functions.
Electrostatic wristband function
1. The connection between the electrostatic wrist strap and the grounding wire.
2. Avoid product damage due to static electricity.
3. Safeguard the safety of staff.