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Every time I touch my computer, the TV stand, the switch or when manipulating the shielded network cables if I touch my central heating (just next to the installation) I get an electric shock.

If I hold my hand touching any of these items and the heater I feel current passing... Even holding for a few seconds I keep getting shocked, so static is definitely not involved.

Should I "fix" this? Is this situation dangerous for my computers/game consoles and TVs? As nearly everything is connected using Ethernet in my house I am worried.

What are the steps to fix it?

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4  
There is obviously a ground problem and it is dangerous. Definitely "fix" it. –  Xavierjazz Oct 29 '12 at 14:10
    
@Xavierjazz How should I proceed? What would be at least the first steps to pinpoint the probable cause of the problem? –  Coyote Oct 29 '12 at 14:14
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@Coyote - Call an electrician, it's clearly not just the computer. –  Shinrai Oct 29 '12 at 14:16

1 Answer 1

Sounds like you've got a floating ground. http://en.wikipedia.org/wiki/Floating_ground

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Any idea on how to "fix" or at least attenuate this? –  Coyote Oct 29 '12 at 14:18
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As @Shinrai notes, call an electrician. This is a dangerous issue and needs professional attention. –  Dave M Oct 29 '12 at 14:47
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The floating ground could be the HVAC ducting, moving air can build up enough static electricity to create a continuous current, plain old induction and antenna effect can put a potential on a large enough area of sheet metal to zap you. I'd check the electrical system grounds to make sure they are intact and bond the ducting to electrical ground as well. –  Fiasco Labs Oct 29 '12 at 15:25

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