BASIC NEC CODE RULES AND DESIGN PRACTICE

12.Receptacles: Provide one 2P, 3W, 20-amp heavy-duty duplex ground fault current interrupter (GFI) receptacle for each three compartments or fraction thereof. Space receptacles equidistant along the interior wall of the aisle space. Install a separate 20-amp circuit for every three (3) receptacles. ................
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