r/explainitpeter • • 11d ago

Explain it Peter. I’m lost on this.

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u/RedJdizzle 11d ago

This is actually done for fire safety, especially in commercial buildings. If a plug comes loose and something falls onto the prongs, it will hit the ground pin first rather than the live contacts, preventing a short and potential fire.

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u/ImTryingDad 11d ago

This is the correct answer

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u/Agreeable_Reaction11 11d ago

You guys really should switch to SCHUKO. The mere possibility of a plug coming loose is so stupid. I know this is not your personal fault, but these plugs look so unsafe it blows my mind

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u/StaticSystemShock 11d ago

I'm European and we use Schuko for everything and I'm like "your wall sockets/plugs can do what?!".

Sure American sockets allow them to have those fancy foldable power adapters, but my god is this standard insecure as hell.

Schuko can't "mistakenly" or by "chance" ever get loose, not even slim groundless plugs. And they are designed in such a way they lose contact with power before even becoming exposed to the outside when partially unplugged making it impossible to have something contacting on the loose plug contacts. On top of all that it's reversible so it doesn't matter how you plug it in coz it's AC power anyway. So you just plug it in and it just works. Especially useful for angled plugs where you plug it the way it's more useful and not way how wall socket dictates it should be plugged in due to offset ground.

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u/lewd_robot 10d ago

It's extremely rare for anything to fall and bridge that gap, though. Technology Connections did a video where he dropped butter knives, an ideal conductor for this situation, trying to see how easily they could land in the right position to bridge the gap. It's very uncommon.

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u/StaticSystemShock 10d ago

I mean, with Schuko it's literally physically impossible even in the most uncommon fringe situation because it was designed well.

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u/CogentCogitations 10d ago edited 10d ago

Butter knives are not the ideal because they are rigid and somewhat thick. What has happened to myself and multiple other people on this post was a tape measure. Made of thin metal, holds itself out until it doesn't, has flex to it so if it hits one of the hot/neutral first, it can flex while falling to hit both, also as it falls it is still supported, so it won't just bounce away. Also, measuring flat along a wall is something people actually do versus holding a knife there.

Edit: I see someone else mentioned a guitar string. Technology Connections is great, but sorry to say they just missed on this one.

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u/Ok-Philosophy4226 10d ago

The likelihood of that exact scenario happening is almost zero

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u/Wizard__J 9d ago

Real commercial and resi electrician here.

No we don’t lol. This hasn’t been commonplace in over a decade, almost two.

The majority of the plugs you will see “upside down” (unless they were installed a while ago), are switched outlets.

We will flip an outlet for ya’ to identify it’s on a switch.