National Electrical Installation Standards

Standards as High as Your Own

Tuesday, May 23, 2023


Hello code friends. The use of extension cords in our office has become a bit of an issue. One example of extension cord usage is where an extension cord runs for about 10 feet from a wall receptacle to an office work station. The female end of the extension cord is connected to a power strip, under the workstation for the printer, computer and other workstation related items are plugged in. Recently a fire dept. inspector saw it during our annual fire inspection, and decided it is not a code violation because the power strip is UL Listed for that purpose. Is this type of installation allowed? Thanks Mike Stevenson



Hello Mike, and thank you for participating in the CQD. In general,  use of extensions cords for the substitution of fixed wiring is prohibited by Section 400.12(1). A “power strip” is also know by the technical name “relocatable power tap”. A relocatable power tap is slightly different from a listing persepective than a typical extension cord. However, a relocatable power tap is still not intended to be used as a substitute for fixed wiring.

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