- Can Be a Safety-Related Choice
One commonly cited reason for installing a receptacle with the ground opening on top involves plugs with a grounding connection.
Imagine a plug is partially pulled out and something
conductive accidentally falls against it.
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With the grounding opening on top, the grounding pin can potentially engage before the other plug contacts in certain situations.
There’s an important caveat here: the orientation of a standard receptacle is not, by itself, a substitute for proper electrical protection.
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