Why Some Wall Outlets Are Installed Upside Down

With the grounding opening positioned above the other contacts, the grounding pin may engage before the other plug contacts in some circumstances. This is one reason some electricians and homeowners prefer to install receptacles with the grounding hole facing upward. However, there is an important distinction to keep in mind: the orientation of an outlet should not be treated as a substitute for proper electrical protection. A safe electrical installation depends on many factors, including correctly installed wiring, appropriate grounding, circuit breakers, and required protective devices such as GFCI protection. ComparePSUs In other words, simply turning an outlet upside down