Can you run a power cord or extension cord through the wall?
Friday, November 27, 2020
No, a power cord or extension cord is not allowed to be run through a wall or ceiling by code, even if it looks neat and professional like in the photo above. The National Electrical Code (NEC) does not allow a cord to be concealed in the wall, per NEC 400.12(5), which states that power cords shall not be used “where concealed by walls, floors, or ceilings or located above suspended or dropped ceilings.” If any part of a cord is not readily accessible to view, then it’s not acceptable.
Only wiring that is rated to be concealed, such as conduit or NM-cable, will do—except in some jurisdictions, such as New York City or Cook County, Illinois, where even NM-cable is not approved. There are kits avaiable specifically for homeowners running power up inside a wall to a wall-mounted TV screen that use NM-cable and listed connectors. But otherwise you’ll need an electrician.
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