Posted by
Ken Kopp on
Nov 25, 2007; 8:20pm
URL: http://elecraft.85.s1.nabble.com/WARNING-WARNING-WARNING-was-ESD-recommendation-tp366973p366982.html
My older home .... built in 1962 by an individual for
himself ... has only 2-wire Romex. At least it's not
single conductor "knob-and-tube wiring. Nothing in
the house ...water pump, water heater, forced-air
heat blower, etc. is "three-wire". (;-(
It's a 2-story structure and it's virtually impossible to
rewire to meet present-day electrical codes without
tearing off the interior wallboard and starting over.
The only way I can see to fix the problem would be
to drill completely through the wall to the outside
at every outlet and add the "green wire" on the outside
of the building and return the resulting "buss" to the
entrance panel's ground. A decidedly "ugly" solution,
even if painted to match the exterior color and doesn't
solve the issue of outlets on interior walls. I -have-
replaced all outlets with "3-wire" types to avoid the
usual cut-off-the ground-pin from household appliance
plugs, but there's nothing connected to the round
holes. (;-)
Cutting groves in the wall board from each outlet down
to the floor and hiding the ground buss under the kick-
board is possible but again, "ugly". The walls have
been painted of course and the kick-boards are stuck
to the wall by paint. Removing the kick-boards would
damage the wallboard and still require its replacement.
There seems to be no realistic solution ...
I built my shack, garage and shop onto the house and
they -DO- meet all codes. There is a dediacated breaker
panel feeding this addition and there are 17 ground rods
on 2 acres, all bonded together with #10 CU buss wire
and tied to the RF and AC entrance ground. Two-inch
CU strap runs inder the wall into the shack and along
the back of the desk with 1/4" brass bolts with wing-nuts
for each piece of equipment.
I'm retired from an electric utility.
73! Ken Kopp - K0PP
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