As others have said .... NEVER use the "U" hole in the
outlet for a wrist-strap or anti-static mat connection!
Mine goes to the station ground buss ... 2" wide CU
strap ... that's connected directly to a number (12)
of 8' ground rods that are all bonded together with #8
CU wire. There is no connection between this ground
system and the power company's entrance ground.
There is often measurable potential between the white
neutral wire, the green "ground" wire and a ground rod.
In some parts of Canada there is just one wire used in
the power distribution, especially in rural areas. The
earth is the other side of the distribution circuit. This
was the case for rural phone lines in the US in the past.
73! Ken Kopp - K0PP
[email protected]
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