Comment by linsomniac
2 days ago
My mom once was getting ready for work and I hear a pop and hear my mom yelling. I go in and her necklace fell off the dresser; a "dust buster" wall wart was plugged in back there and it fell across the prongs, shorting it out.
This is why you always mount outlets with the grounding pin facing up!
Or have sensible outlet design where prongs are always recessed.
Wow, I never knew they could be installed that way; the US standard doesn't say. Now every time I see a new outlet I'm going to check.
This is why you have modern circuit breakers.
How does that help?
The ground pin, when "up", is higher than the hot, so in certain situations it can prevent something from shorting the hot and neutral. Code (?) or convention requires it if you have a metal faceplate, and hospitals require it. People generally like them mounted ground down because then they look like little faces. :-)
edit: Not code, just convention.
2 replies →
It doesn't.
... it was an ungrounded plug... Plus it was a chain, so it'd drape across all 3.
TBH, in the house I mount them ground down, but under cabinets or in the garage/shop or etc I mount it ground up.
I think ground up commonly indicates that an outlet is controlled by a switch on the wall. It's not code, but I think it's a convention
1 reply →