[Elecraft] RE: static ground

[Steven Pituch]

Hi Bob,
Sounds like you live in Texas.

Your theory is pretty much correct.  I am a professional Engineer,  and home
inspector in Texas.   The default way to deal with (update) a two wire
circuit is to install a GFCI in the upstream outlet and slave the GFCI to
the downstream outlets. However if there is not a ground available in the
box, you must label the outlet No Equipment Ground.

I haven't found the Lutron PDF file on their site that I use as reference,
but I found an abbreviated explaination here: 
See:  http://www.codecheck.com/250_50_commentary.html

Its very possible that the center screw and the box may not be grounded.  If
it isn't do not connect the ground screw on the outlet to the neutral.  

The NEC code is quite confusing.  If you need to determine a grounding
method I can look it up, but I am sure its not going to be simple.

If it’s the first floor it might be best to just drive a ground rod into the
earth for your RF and static ground and not wire it directly to the
electrical system.

Regards,
Steve, W2MY

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[Elecraft] RE: static ground

[Steven Pituch]

Hi Ron and all,
Actually the name GFCI is a bit misleading I think.  You don't need a ground
for a GFCI to work.  That's why they recommend their use in upgrading two
wire systems.  The GFCI senses a current difference between the neutral and
the hot wire.  If the difference is greater than 5 milliamps, the GFCI is
supposed to trip and disable the circuit.  Thus if you get a shock and the
GFCI trips you were in essence the ground fault in Ground Fault Circuit
Interupter.  Having a third wire as ground is nice to have, but it seems
that putting a GFCI in a two wire circuit greatly increases the safety of
the circuit.

Steve, W2MY

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ron D'Eau Claire

Don makes a good point about running a ground wire through the house, at
least to the critical outlets near the ham shack. I'd include, as a minimum,
kitchen and bath outlets as well so they can be equipped with ground-fault
interrupters.

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