Does a 3 prong outlet have to be grounded?
Does a 3 prong outlet have to be grounded? Three-prong adapters are only supposed to be used at properly grounded two-prong outlets. A GFCI outlet will help to prevent electrocution, but it won't help surge protectors do their job. If this is done, a sticker needs to be applied to the face of the GFCI outlet that says “No Equipment Ground”. 3. Which is the hot wire in a three prong plug? That exposes the three wires in the cord, and if you strip the insulation back and separate the wires, you'll see that they are all colored differently. The...