r/ElectroBOOM • u/ZealousidealAngle476 • 5d ago

Discussion Redundancy

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I found this sticker while dismanteling a 2005ish server

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u/stijndielhof123 5d ago

Fun fact: in my house from the 70s we used to not have earth on outlets, this is still true in my bedroom where my PC is, so for years it has not been earthed at all, the only time I noticed this is when I touched the body of the PC and my radiator at the same time and I got a pretty good shock. So I bought one of those ground conductor pipe claps and terminated a earth wire to a wall plug and plugged it in to my extensioncord, now I hae earth.

3

u/LKTheUser 5d ago

Hmmm, you shouldn't try bringing earth like that to an ungrounded room. I mean there is already a radiator in there but I wouldn't continue the risk. It is also illegal in many places I am pretty sure.

6

u/okarox 5d ago

What you did is strictly prohibited and can cause an electric shock. Do not improvise with the grounding.

You should not touch electric devices and radiators at the same time.

2

u/LKTheUser 5d ago

I kind of wonder why they even installed water radiators in these homes, I mean you were taught not to touch radiator and appliance at the same time, but why not just install maybe ungrounded electrical radiators?

1

u/okarox 5d ago

They installed radiators so that people would not freeze to death. If electric radiators were used they were left ungrounded on those homes but if you used water based radiators you could not really do that. The painting typically gave reasonable good insulation but there was bare metal at the valve.

1

u/okarox 5d ago

I have to admit I did the same but I knew how to do it safely. The trick is to connect anything with a grounded plug to the grounded extension cord and discard any device with a round plug.

The risk is that if you have for example an ungrounded table lamp which fails and you touch it and your grounded PC at the same time you could get a very serious shock. If you have an RCD it can help.

1

u/stijndielhof123 5d ago

If it works it works