Are horizontally mounted face-up countertop receptacles allowed in residential wiring?

In residential wiring, horizontally mounted face-up countertop receptacles are not permitted due to safety concerns. The primary issue is that these types of receptacles may pose a risk of water or liquids being spilled onto them, particularly in a kitchen environment. This creates an increased risk of electric shock or fire hazards.

The National Electrical Code (NEC) specifies that receptacles installed in countertops should be located in such a way that they minimize exposure to spills. Vertically mounted receptacles or those installed in a way that they are less likely to be exposed to liquids are preferred to ensure safety and maintain compliance with electrical codes. This guidance ensures that homeowners and users can utilize electrical devices safely without the added risk that a face-up horizontal installation might introduce.

Thus, the prohibition on horizontally mounted face-up receptacles reflects best practices in electrical safety, particularly in residential kitchens where the presence of water is significant.