What's wrong with computer leakage? Tell me in detail!

Installing ground wire to solve the leakage of computer chassis

Many computer users will encounter such a thing during their use. When they touch the chassis with their hands to turn it off or insert the USB flash drive,

There will be a feeling of "electric shock"; When touching the screen of a display (CRT) with your hands, you will also feel "discharged"; even if

We plug in the data cable of the stylus printer (this is not allowed when the printer is turned off, and the correct operation is to connect.

When the printer and the host are turned off, you can plug in the LPT data cable), or when you turn on the volume knob of the speaker, it will also

The smell of electricity.

Many times, after being "electrified", we have no obvious feeling, but we are numb, but sometimes we may feel like it.

Found a needle. Because everyone is afraid of being electrocuted, when this happens, some users will touch the machine with an electric probe.

The metal part of the box to determine whether there is electricity. It doesn't matter if you try. The neon bubble in the electron probe is red. Then use a multimeter to measure.

Check the voltage. It's almost 200V V. Don't get an electric shock. Well, there is something wrong with the computer. Is that really the case? why

Will this happen?

In fact, the reason is very simple, just because the power socket in the customer's home is not well grounded or not grounded at all. although

Everyone is afraid of the leakage of the CRT screen of the computer case or monitor, as well as the metal parts of the speaker and printer, and they don't even know about it.

The real reason is often mistaken for the quality of the computer. And use many brands of computers actually sold in the market.

There are detailed instructions in the manual, and most of them have the following words.

But in fact, after most consumers buy their computers home, almost no one reads the user manual carefully, and no one is there.

The intention is that for safety and stability, the computer must be grounded, and no one will consider using a two-wire plug for the TV.

Computers, printers and monitors use three-wire plugs, so when there is a problem with the computer, it is very sure to identify it.

Because there is something wrong with the computer, either call for repair or complain to the Consumers Association. And what is the final result? only need to

Adding ground wire can solve all problems.