The laser marking machine is also a mechanical device, and its exterior is made of metal, then there will be a phenomenon of leakage, and many devices have this problem, but in smaller cases, companies will not pay too much attention. It will cause a big mistake and cause an accident. So what is the cause of the leakage of the laser marking machine, the detection method and the solution?
1. Leakage phenomenon
Leakage of machinery and equipment is a common problem, but it is also very important, because the phenomenon of leakage is like acupuncture. When you touch the metal part of the machine, when it is 100V or less, when the tingling sensation is large, the voltage is about 150v.
2. Causes of leakage
There are some problems with the circuit boards used by some appliances, and most of them use switching power supplies. Electricity is not harmful to people because the resistance between the circuit board and the power supply is very large and the current generated is very small.
Some components, especially capacitors, may also leak electricity due to the circuit board being wet and dusty. For example, the casing of some electrical equipment is initially uncharged, but after a period of time, they are recharged again. This is often the case.
3. Leakage detection method
Leakage is due to a certain potential difference between the casing of the appliance and the live wires of the commercial power supply. The method for detecting leakage is to use a pen to touch the charged body. If the neon light bulb is on, it will immediately go out, proving the charged body Is stationary if long brightness is leakage.
4.Solutions for leakage
① The easiest way is to exchange positions.
② Clean the dust on the circuit board, especially the dust on the power supply motherboard.
If none of the above methods work, the most effective method is to ground the house.
