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Contact: Zhao Guilin
Fixed line:0755-27811087 / 27811156

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The role of anti-static dual-circuit wrist strap
2019-11-28

The function of the anti-static dual-loop wrist strap is to introduce static electricity into the earth through the electrostatic grounding wire through a 1 megohm resistor in the plastic box on the wrist strap and the wire. The series resistance is mainly for personal safety considerations to discharge static electricity, and the purpose is It can avoid the impact on the components when the instantaneous high current occurs, and avoid the damage of the components. The working principle of the antistatic wrist strap with copper wire: the human skin is in direct contact with the electrostatic conductive material on the wrist strap. When the wrist strap is grounded, the grounding system is used. Quickly discharge the static electricity generated by human movement; index: rubber disc type (white yarn/black yarn); static discharge time: less than 0.1s. The copper wire anti-static wrist strap is a high-end wrist strap with "ohm" logo. The copper wire anti-static wrist strap is composed of a rubber band or Velcro ring, a metal ring, a rubber ring, a slingshot cord, and an alligator clip. It has the characteristics of fast dissipating power (S<0.1 second),="" durability="" (curve="" bending="" resistance="" 30,000="" times),="" safety="" (built-in="" 1mω="" current="" limiting="" resistor),="" and="" repeated="">

防静电双回路手腕带的作用

The anti-static dual-loop wrist strap plays a very important role in the electrostatic protection system of the electronic manufacturing industry. Whether it can discharge static electricity normally is related to the safety of the product. Why do many large companies require ESD certification for production lines? For ESD certification, it is necessary to conduct anti-static technical service guidance before certification, carry out electrostatic protection design and planning for its enterprise production environment, check and accept electrostatic protection facilities in the anti-static work area after supporting, and train related technical personnel on ESD technical knowledge. Implementation, if the anti-static wrist strap cannot be used normally, the static electricity generated at the production site cannot be discharged, it is certain that the ESD certification cannot be passed, and there is no way to obtain a valid ESD certification certificate.Anti-static double loop wrist strapIt is used to discharge the static electricity of the human body. It consists of elastic bands, movable snaps, and spring cords. It is composed of protective resistor and plug or chuck. The inner layer of the elastic band is woven with anti-static yarn, and the outer layer is woven with ordinary yarn. Main indicators: Spring cord length 250cm, leakage resistance 106Ω (protection resistance 106Ω). Detailed introduction of the anti-static wrist strap The wireless electrostatic wrist strap is developed based on the physical principle of (static voltage balance), based on the principle of "In Electrostatic Engineering" that static electricity is transferred by pushing between ions. The feature of pushing from the static electricity from the high voltage to the high potential pushes the electrostatic ions of the human body into the drought body design (collection area), through the [charge induction principle], the front and back surfaces of the conductive plate will be charged with the same amount of opposite sex. -Skin effect, due to the built-in ion exchanger< with="" its="" low="" free="" energy="" characteristic="">, it can easily provide the introduced electrostatic ions with the same amount of opposite charges to neutralize, so the effect of electrostatic discharge can be achieved. In addition, there is a screw on the outside of the machine to connect with the internal conductor loop.

For customers who are still using the cordless anti-static dual-circuit wrist strap, try to use it as little as possible, because the principle of the cordless anti-static dual-circuit wrist strap is to use the principle of corona discharge to dissipate some static electricity. Corona discharge is also called tip discharge, which is the guiding body. After it is charged, it usually needs a voltage exceeding 1500V, and its tip part will discharge into the air to dissipate static electricity. When the cordless wrist strap is dissipated, the static voltage required is too high and it is not suitable for the electronics manufacturing industry. Currently, it can withstand 1500V The electronic components of the above static voltage are very few.


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