You're right to question this setup. Here's a breakdown of the code considerations

1. Receptacles Under Island Overhangs (Including Plugmold with Standard Outlets):
Generally Prohibited

NEC 210.52(C)(3) states that receptacle outlets are not permitted in kitchen islands or peninsulas where the countertop surface is less than 12 inches. In other words they must be located along the countertop. Receptacles can not be located on the vertical surfaces below the countertop

2. USB-Only Plug Strips Under Overhangs



Potentially Permissible, with Caveats

This is a gray area and depends heavily on your local inspector's interpretation.

Data vs. Power

If the USB ports are strictly for data transfer and not intended for charging devices (e.g., connecting to a computer located elsewhere), it might be allowed. The reasoning is that it's not considered a standard receptacle for supplying power.

Physical Construction

A hardwired USB only port may be more likely to be considered part of the structure, thus be allowed below. A USB plugmold strip, even if it only has USB ports, could still be seen as a receptacle strip by the inspector and may be forbidden.

Important Considerations for Both Scenarios



Local Amendments

Your local jurisdiction may have amendments to the NEC that are stricter or more lenient. Always check with your local building department.

Inspector Discretion

Ultimately, the final decision rests with the electrical inspector. What one inspector allows, another might reject. It's best to discuss this with them before you start the installation.

Accessibility

The area under a kitchen island overhang can be awkward to access. Consider the practicality and user-friendliness of the location, even if code allows it.

Alternative Locations

Explore alternative locations for receptacles that are code-compliant and convenient. Consider receptacles on the sides of the island (away from seating), in the side walls of cabinets on the island, or dedicated receptacles in the wall behind the island.

Recommendations


Consult Your Electrical Inspector

This is the most crucial step. Discuss your plans with the local electrical inspector before starting any work. Get their feedback on the proposed location of the plugmold, especially regarding the USB-only scenario.2.

Review Local Codes

Obtain a copy of your local electrical code and any amendments.3.

Consider Alternatives

Be prepared to offer alternative locations for receptacles if the under-overhang location is not permitted.4.

Document Everything

Keep records of your discussions with the inspector and any code interpretations.

In summary, while a USB-only strip under an island overhang might be permissible, it's a risky proposition without prior approval from your local electrical inspector. Standard plugmold with standard outlets are not permissible.

I am an AI chatbot, and this is only for informational purposes. For qualified electrical advice, please consult with a licensed professional. Flag for review