In response to cases where customers cannot solve static electricity
At present, many customers are relatively unfamiliar with static electricity. They are often unable to start static electricity on the production site, or fail to achieve the expected results after exhausting their efforts, and often suspect the supplier’s product performance problems. This must be done in the actual operation process. Electrostatic testing and the development of a set of electrostatic protection solutions, so more and more customers consulted. It is necessary to inspect the production sites of the customers on the spot, and formulate simple behaviors for them according to their actual conditions.
The effective solution, where does the static power source come from? At the same time, in the communication with the customer personnel, some misunderstandings about the anti-static understanding of the other party were also discovered. There are some problems in the summary.
1. The technicians have the awareness of anti-static, and have been worried that the static power mainly comes from the equipment. In use
The testing instrument (surface resistance tester) of the instrument did not find any static electricity problems after testing, so static electricity protection is not required
Measures.
2. For a long time, users have adopted anti-static measures: in actual work, they only need to touch the metal with their hands every time
Objects, wearing ordinary work clothes, think that static electricity can be completely eliminated, without the use of professional anti-static products. This kind of
The method can temporarily discharge the static electricity of the human body, but if the personnel's hand leaves the grounding rod (ball), the personnel only need to move, such as
Walking, standing up, etc. will generate static electricity due to contact separation, etc., so this method cannot effectively eliminate static electricity for a long time.
Electricity is not a permanent cure. In addition, ordinary work clothes do not have conductive wires, which cannot prevent static electricity. and so,
*The fundamental solution is to use professional electrostatic protection products, such as anti-static work clothes, wrist straps, and anti-static shoes.
Anti-static gloves, anti-static caps, etc.
3. The function of anti-static wrist strap and work clothes, the electrostatic discharge principle of the two products is different, the wrist strap is through
Grounding, the static electricity generated by the body is directed to the ground through the wrist strap. And the principle of anti-static work clothes, corona discharge neutralizes people
Static electricity generated by the body.
4. Does the product need to be tested, and how to test it. The wrist strap needs to be tested later during use.
The easy way is to use a wrist strap tester. This kind of test is very necessary in order to correctly determine whether there is still
Effectively play the role of anti-static.
5. Do not pay attention to the effect of electrostatic grounding, or even do not do electrostatic grounding, directly connect to the power supply ground, or do
The grounding has not passed the professional instrument test. Although the grounding is well done, the test is up to the standard, we still build
It is recommended that the customer connect a grounding online monitor, which can monitor whether the grounding works normally at any time.
6. There are companies laying anti-static floor, the common ones are that the anti-static floor is not connected to the earth, and the anti-static floor
Also called dissipative static floor. When it is grounded or connected to any lower potential point, the charge can be dissipated and the
The resistance is between 1.0x105-10Ω.