applicable requirements.
Is it safer to have the ground hole on top?
Some electricians prefer that orientation for particular safety considerations, but receptacle orientation by itself doesn’t determine whether an electrical installation is safe.
Proper wiring, grounding, overcurrent protection, and required protective devices are much more important.
Why would an electrician install only one outlet upside down?
It could be intentional, perhaps to distinguish a particular circuit or switched receptacle. It could also simply be the installer’s preferred orientation. SourceElectronic Components
The orientation alone isn’t enough
There’s more to discover. Continue to the next page for the rest of this article.