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alexchamberlain
on May 28, 2012
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The Mu - Folding UK 3-pin → USB plug
I've just checked 2 phone chargers and a tablet charger. All of them have plastic earth pins.
Earth != Ground...
celticninja
on May 28, 2012
[–]
you dont need to earth it when the power consumption is so low. The plastic pin is essentially to open the covers for the lower 2 pins.
alexchamberlain
on May 28, 2012
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parent
[–]
Correct. I was pointing out to the parent comment that the earth pin isn't used to form the usual circuit.
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Earth != Ground...