1. No anti-static product testing equipment
The most common mistake is that many companies have purchased a lot of anti-static products, but have not purchased some commonly used anti-static product testing instruments. We know that each product has a certain period of use and the quality is good or bad. If there are no commonly used testing instruments, we do not know whether the product is damaged or not. This will not achieve anti-static effect.
2. The ground connection is not good
a, anti-static system must have an independent and reliable grounding device, grounding resistance should generally be less than 10Ω, buried and testing methods should meet the requirements of GBJ97.
b. The anti-static ground wire must not be connected to the power supply neutral line and must not be shared with the lightning protection ground wire. Because lightning strikes and other phenomena will affect the performance of the product and personal safety through the loop.
c. When using three-phase five-wire power supply, the ground wire can be used as an antistatic ground wire (but the neutral wire and ground wire must not be mixed).
d. The cross-sectional area of ​​the grounded main line should not be less than 100mm2; the cross-sectional area of ​​the branch line should not be less than 6mm2; the ground wire of the equipment and the workbench should use multiple strands of plastic conductors with a cross-sectional area of ​​not less than 1.25mm2. The grounding wire should be yellow-green. It is appropriate.
e. Brazing should be used for the connection of grounding mains.
f. The connection terminals of the anti-static equipment should ensure reliable contact and easy assembly and disassembly, allowing the use of various clip-on connectors such as squid clips and plug holders.
g. The grounding system monitoring alarm should be installed in workplaces with high grounding resistance requirements.
3. Use antistatic products as ordinary products
Many companies use the anti-static products as ordinary products. They think that the products will not be deformed and can continue to be used without breaking. In fact, this is a misunderstanding. For example, the anti-static wrist strap can only be used for a few months. When it is used for a period of time, the appearance may not be damaged. However, when testing, it is often found that the wrist strap has been broken.
4. Do not pay attention to socks and insoles
Usually people wearing anti-static shoes will wear socks or cushions insoles, feet sweating people, these socks and insoles will thus lead static, but some people who do not sweat easily wear some anti-static? And pad insoles, this socks and insoles can not guide static electricity, so the body's static electricity can not be introduced into the earth through the shoes. Therefore, the “human body comprehensive resistance tester†is placed at the entrance of the machine room or factory building. The human body comprehensive tester can quickly and accurately detect those who wear unqualified anti-static shoes, socks, and cushioned insoles. It is recommended that workers wear anti-static slippers in the summer and do not wear them. They can wear cotton socks in the winter but do not wear nylon socks.
5. Only wear anti-static shoes do not wear anti-static clothing
In addition to wearing anti-static shoes, people wear anti-static overalls to better control the body's static electricity. Because clothing can also bring high static electricity, especially most of the current clothing is chemical fiber, can generate thousands of volts of static electricity.
6, only wear anti-static clothing does not wear anti-static shoes
Experiments have shown that people wear anti-static overalls only if they do not wear anti-static shoes and do not have good anti-static ground, and the anti-static effect is extremely poor.
7. Anti-static clothing and shoes are worn but there is no anti-static floor and no anti-static wrist strap
We know that the static electricity of the human body must be led through anti-static shoes to the anti-static floor or through the wrist strap to the earth. If the anti-static floor and the anti-static wrist strap are not available, then the person's static electricity will be difficult to guide away. It is best for qualified companies to have anti-static flooring and anti-static wrist straps. Unqualified companies must have at least anti-static wrist straps.
8. Incorrect use of wrist band
Since the wrist band is relatively easy to damage, it is necessary to detect it every day. A good wrist band will also be too loose and not conductive for workers. Therefore, the best method is to use a wrist strap online monitor to monitor at any time. However, there are many companies that do not even have a wrist strap tester. A wrist strap that was used for more than a year does not have to be broken. This is not an electrostatic discharge effect.
1. Product introduction
Coal-based column desulfurization column Activated Carbon used high quality Anthracite as raw material. Adding a certain proportion of adhesive, auxiliary catalyst, by selection, proportioning, grinding, molding, drying, carbonization, activation and deep processing made.
2. Application
This product is mainly used in all kinds of gas, such as water gas, semi water gas, coke oven gas, natural gas, carbon dioxide gas, city gas, synthetic ammonia process gas, and exhaust gas in sulfur dioxide chemical raw materials and other containing mercury. It also used for adsorption of flue gas of power plant equipment, including the removal of sulfur dioxide and saltpeter, which replace the lime desulfurization process before. It also applies to other gas that contains mercury cannot get rid of the low concentration, which is equal to or below the national emission standard.
3.Transportation and Packing
Woven bag, lined with plastic film bags, each 25kg can also be packaged according to customer demand. The product should be placed in a cool and dry place during storage; When transportation, it prevents to mixed with hard materials, to prevent carbon particles broken that affecting the quality of packaging, to prevent breakage. To avoid leakage or mixed with debris; to avoid water, oil and fire.
Column Desulfurization Column Activated Carbon
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Ningxia YiFeng RuiDa Activated Carbon Co.,LTD , http://www.nxyfrdhxt.com