feb-2007@althorne.org writes:
>Charles T. Smith wrote:
>
>> Yikes! Okay, guys, thanks for the knowledge.
>>
>> I checked the ground-plug-to-case on both machines and back from the
>> extension cords to the wall, and like, there's 0.5 ohms (even in the
>> trivial case).
>
>There is something not quite right. The two items which have 101V
>between them can't be commened to somewhere via a resistance of only 0.5
>Ohms.
>

They don't have 0.5 ohms between each other, they each have 0.5 ohms
to the ground/earth pin of their wall outlets.

So the wall outlets have 101 Volts difference between them. Not hard
to do if they're fed from different secondary windings from the same
power transformer and/or one of the outlets has some dodgy ground/earth
wiring.

-Greg
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