With no GFCI upstream, a correctly wired outlet should be able to light an incand. lamp when run from hot (short slot) to neutral (long slot) and from hot to ground (round hole).
A lamp doesn't respond to phantom voltages like many testers do.
If it passes this test then power a hair dryer from this outlet; the voltage should drop less than 3v when the dryer is switched on.
A lamp doesn't respond to phantom voltages like many testers do.
If it passes this test then power a hair dryer from this outlet; the voltage should drop less than 3v when the dryer is switched on.