Re: grounding question

To: tesla-at-pupman-dot-com
Subject: Re: grounding question
From: "Jim Lux" <jimlux-at-jpl.nasa.gov> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Wed, 29 Mar 2000 21:31:27 -0700
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Use a counterpoise grid instead.   Chicken wire or reinforcing mesh or
something of the like, covering an area with diameter > twice the height of
the coil top load.....

For safety, ground it to the third wire (just so HV doesn't capacitively
couple from the primary side, relative to grounded observers(i.e. you). 
This third wire ground doesn't have to be particularly low RF impedance,
but should be low 60 Hz impedance (i.e. a #14 green wire...)

Those of you that live (or coil) in places with concrete slabs, often the
ground is a UFER ground, which is essentially a wire cast into the
concrete, making the entire slab your ground electrode.
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: grounding question
> Date: Tuesday, March 28, 2000 8:29 PM
> 
> Original Poster: "Kelly Shutt" <tcatut-at-mail.utexas.edu> 
> 
> ok... i live down in good old Austin, TX and we have a unique ground
> problem... most of the ground around here is Texas rock... you go down
about
> a few feet or even inches as the case is where I'm trying to drive my
rod,
> and  you hit what is basically gravel... anyone know any ways to work
around
> this... i suppose i could get a thin rod and put a point on it to push
> between rocks but i don't know how well that would work... also, how do
you
> people go about driving 8 and 10 foot pipes into the ground... that can't
be
> an easy task... i would appreciate any help or solutions that any of you
> might possess.
> 
> Thanks,
> Kelly
> 
>