It reads: “NEC 314.20 in Wall or Ceiling: In walls or ceilings with a surface of concrete, tile, gypsum, plaster, or other noncombustible material, boxes employing a flush-type cover or faceplate shall be installed so that the front edge of the box, plaster ring, extension ring, or listed extender will not be set back of the finished surface more than 6mm (1/4 in.).”
INSTALLING RECPTACLES TO PLASTER RING CODE
NEC and NFPA Code Requirements for Electrical BoxesĪ regulation for the installation of electrical boxes comes from the National Electric Code. GFCI electrical outlets are also meant to be installed ground pin down, as they feature text on the test and reset buttons that orient in this way. In addition, many household items like lamps, chargers and timers are oriented for plugging into a prong-down outlet. Therefore, their finger would be more likely to come into contact with the ground plug rather than the live prongs. When grabbing a plug to disengage it from the electrical outlet, a person’s index finger generally reaches around the bottom of the plug. The plastic surrounding the ground plug is also thicker and can help to hold the plug into place more securely. This ground plug does not usually carry current so the metal object would not come into contact with the live prongs. With the ground pin on the top, it provides a more stable connection if the plug came loose and a metal object were to fall from above onto it.
When mounting an electrical outlet, should the hole for the ground pin be on the top or the bottom? Because the National Electrical Code (NEC) doesn’t offer a definitive answer, there are reasons that either way can work.
Installation of electrical components such as the electrical outlet and electrical box is strictly regulated in order to protect consumers and homeowners.
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