Re: Upside down outlets
There is really no such thing as an upside down plug ........ unless its written in the manufacturer's installation instructions or written on the outlet (some actually have "top" written on them) you can install the receptacle in any direction you like.
The Electrical Code doesn't require a specific orientation of a duplex outlet. Most often the ground is at the bottom, but the outlet can be mounted horizontally as well as vertically.
Many prefer that the ground be located at the bottom .... the thinking is if the plug works loose the ground remains in contact longer. If mounted horizontally most prefer to have the neutral (wide blade) side up so any foreign object that falls onto a partly exposed blade would contact either the neugral or the ground.
GFCIs often have the test/reset indicators labeled so they can be read whether the ground is up or down. In other words ...... it's a choice.
In the IEEE standard 602-1996, section 4.2.2 ...... advises that hospital-grade outlets be used and that they should be mounted with the ground pin or neutral blade up to assure that any metal that may drop between the plug and the wall will most likely contact an unenergized blade.
"" an ounce of perception -- a pound of obscure "