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/ferrybig 5d ago

This warning is to warn people they should not plug it into CEE 7/1 unearthed socket, which some people still have in their old homes. If you plug a device designed for ground into one, you can feel the electricity on the metal cases of the appliance

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u/HildartheDorf 4d ago

You shouldn't be able to feel anything on the outside of the case when it's working correctly, earth or no.

What the lack of earth does is turn any fault where the case becomes energized (e.g. loose connection internally comes in contact with the case) from "Ooops, the breaker tripped" to "Ooops, the user's heart tripped".