Can you run a power cord or extension cord through the
2020-11-27u2002·u2002No, 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 ...
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