Static Shocked - Electronic Circuits Projects Diagrams Free

Spectacular Butter · 23rd March 2005, 03:24 PM

The last few days i keep getting static shocked by the components around the pc.

When i connect a digicam to the pc and i touch the digicam, i get shocked. When i touch the back portion of my pc (the surface with all the ports), i get shocked. When i just touch the printer cable connected to the extension cord i get shocked. When i tried to on a switch connected to the extension cord i get shocked.

This only started happening since a few days ago.

May i know what might be the problem? Or did i just notice my secret hidden superhero powers?

**Nigel Goodwin** · 23rd March 2005, 04:00 PM

It depends on what is earthed (grounded) and what isn't. PC's usually have an earthed case, but many items don't - so when you plug the item into the PC it grounds via the PC. When it's not connected to ground via the PC, the mains isolation components cause a slight leakage current to make the casing slightly live - this isn't dangerous, but can be disconcerting!.

Another possibility is that it's YOU! that's charged up, with static electricity, and it's discharging from your body to ground via the PC. This could explain why you've only noticed it recently, because you're wearing different clothes?.

Dean Huster · 23rd March 2005, 05:34 PM

I would have to agree with Nigel. With the exception of a CRT screen and a laser printer, there isn't much in the way of electrostatics in computer equipment. I'd suggest advent of synthetic clothing, a new carpet, a run of really low humidity, new shoes .... has the wife been compaining about getting a lot of static from you? Mine always does.

Dean

plot · 24th March 2005, 09:50 AM

Being from the same area as Dean, I'm gonna agree with the fact that it might just be really dry where you live, which often leads to a build up in static.

**Nigel Goodwin** · 24th March 2005, 11:27 AM

Quote:

Originally Posted by plot

Being from the same area as Dean, I'm gonna agree with the fact that it might just be really dry where you live, which often leads to a build up in static.

We don't have 'dry' problems in the UK :lol:

atferrari · 24th March 2005, 11:59 AM

I pretty much doubt that Malaysia could be a dry place.

An eventual radical climatic change making that part of the globe dry, perhaps :?:

Agustín Tomás

Dean Huster · 25th March 2005, 03:32 PM

"We don't have 'dry' problems in the UK ."

Ohhhhhhhh! THAT'S why you guys are always carrying umbrellas in all those movies! I thought they were just some glut of British props that had to be used.

Here in southeast Missouri (US), humidity is always 90%+ during the summer. No static cling then!

Dean

GraveYard_Killer · 25th March 2005, 08:51 PM

earth/ground the pc and wear an antistatic wrist strap ,if your comfortable with it.

have the same problems before. when i learned that proper grounding solved it, i almost ground almost every appliances here in my house :lol: from PC, component, refrigerator, microwave oven, rice cooker :lol:

GraveYard_Killer · 25th March 2005, 08:52 PM

Quote:

Or did i just notice my secret hidden superhero powers?

:lol: :lol: :lol:

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23rd March 2005, 03:24 PM	(permalink)
Spectacular Butter	Static Shocked The last few days i keep getting static shocked by the components around the pc. When i connect a digicam to the pc and i touch the digicam, i get shocked. When i touch the back portion of my pc (the surface with all the ports), i get shocked. When i just touch the printer cable connected to the extension cord i get shocked. When i tried to on a switch connected to the extension cord i get shocked. This only started happening since a few days ago. May i know what might be the problem? Or did i just notice my secret hidden superhero powers?

23rd March 2005, 04:00 PM	(permalink)
Nigel Goodwin	It depends on what is earthed (grounded) and what isn't. PC's usually have an earthed case, but many items don't - so when you plug the item into the PC it grounds via the PC. When it's not connected to ground via the PC, the mains isolation components cause a slight leakage current to make the casing slightly live - this isn't dangerous, but can be disconcerting!. Another possibility is that it's YOU! that's charged up, with static electricity, and it's discharging from your body to ground via the PC. This could explain why you've only noticed it recently, because you're wearing different clothes?. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk

23rd March 2005, 05:34 PM	(permalink)
Dean Huster	I would have to agree with Nigel. With the exception of a CRT screen and a laser printer, there isn't much in the way of electrostatics in computer equipment. I'd suggest advent of synthetic clothing, a new carpet, a run of really low humidity, new shoes .... has the wife been compaining about getting a lot of static from you? Mine always does. Dean __________________ Dean Huster, Electronics Curmudgeon Contributing Editor emeritus, "Q & A", of the former "Poptronics" magazine (formerly "Popular Electronics" and "Electronics Now" magazines). R.I.P.

24th March 2005, 09:50 AM	(permalink)
plot	Being from the same area as Dean, I'm gonna agree with the fact that it might just be really dry where you live, which often leads to a build up in static.

24th March 2005, 11:59 AM	(permalink)
atferrari	Malaysia I pretty much doubt that Malaysia could be a dry place. An eventual radical climatic change making that part of the globe dry, perhaps :?: Agustín Tomás

25th March 2005, 03:32 PM	(permalink)
Dean Huster	"We don't have 'dry' problems in the UK ." Ohhhhhhhh! THAT'S why you guys are always carrying umbrellas in all those movies! I thought they were just some glut of British props that had to be used. Here in southeast Missouri (US), humidity is always 90%+ during the summer. No static cling then! Dean __________________ Dean Huster, Electronics Curmudgeon Contributing Editor emeritus, "Q & A", of the former "Poptronics" magazine (formerly "Popular Electronics" and "Electronics Now" magazines). R.I.P.

25th March 2005, 08:51 PM	(permalink)
GraveYard_Killer	earth/ground the pc and wear an antistatic wrist strap ,if your comfortable with it. have the same problems before. when i learned that proper grounding solved it, i almost ground almost every appliances here in my house :lol: from PC, component, refrigerator, microwave oven, rice cooker :lol: __________________ Learning is a life-long process...