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RE: [TCML] Safely Grounding a Tesla Coil
I use 10ft copper pipes, for my coil operating spot and another set up at
the base of my radio tower. Install a garden hose fitting on the end of the
pipe , hook up a hose , hold the pipe vertical , have a friend turn the
water and the pipe will slip right into the ground as the water pushes the
dirt aside.
Rich , KDØZZ
No trees were killed in the sending of this message. However a great number
of electrons were inconvenienced.
On Sat, 06 Feb 2010 20:31 -0700, "Brandon Hendershot"
<brandonhendershot@xxxxxxxxx> wrote:
> Hi "Fuzzy"'
>
> These things are like 8 feet long. Unless I'm hiring Micheal Jordan to
> help me, I'm going to need to know how to start it in. (That's
> supposed to be funny, just in case it came off the wrong way.)
>
> Thanks,
> Brandon
>
> On Feb 6, 2010, at 8:23 PM, "Reverend Fuzzy"
> <cmayeux@xxxxxxxxxxxxxxxxx> wrote:
>
> > Best way to sink a ground rod (with all seriousness intended) is
> > with as large of a hammer or maul, as you are physically capable of
> > handling. If your aim leaves something to be desired, hold a chunk
> > of 2x4 on top of the rod, and pound that... much bigger target, and
> > less likely to smack your hand. And above all, it is highly
> > recommended that you slip the clamp, or other attachment device onto
> > the rod BEFORE driving it in, as there is more than likely to be
> > some "mushrooming" on the end of the rod, and it's a HUGE
> > possibility that you won't be able to slip it on after.
> > Stop hammering when there is just enough rod showing to comfortably
> > deal with the clamp.
> > ---
> > Reverend Fuzzy
> > Pastor, MSB Ministries
> > Hattiesburg, MS
> > http://www.msbministries.org
> >
> >
> >
> >
> >
> >> -----Original Message-----
> >> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> >> Behalf Of Brandon Hendershot
> >> Sent: February 06, 2010 7:30 PM
> >> To: Tesla Coil Mailing List
> >> Subject: Re: [TCML] Safely Grounding a Tesla Coil
> >>
> >> Hi Richard,
> >>
> >> A lot of what you guys are trying to explain seems way over my head.
> >> How about some advice for sinking a ground rod? Lol, but I think I
> >> will try the chicken wire counterpoise before I do any permenant
> >> damage to the lawn.
> >>
> >> Thank you all for your patience with me,
> >> Brandon
> >>
> >> On Feb 6, 2010, at 5:27 PM, "Richard Schmuke" <rdj@xxxxxxxxxxxx>
> >> wrote:
> >>
> >>> Lets try this Brandon , if you have a antenna, the standard is a
> >>> dipole ,
> >>> 1/4 wl out the center of the coax and 1/4 wl out the shield side.
> >>> You can
> >>> set this on the ground and have a rod going up from the center 1/4
> >>> wl, now
> >>> from the shield side spread out several wires 1/4 wl length to act
> >>> as the
> >>> other half of the antenna. This is sometimes called a counterpoise.
> >>> It gets
> >>> more involved but did this help? If not I can sent you some simple
> >>> drawings
> >>> I use for my radio classes.
> >>>
> >>> Rich , KDZZ
> >>> Disclaimer: Any errors in spelling or facts are transmission errors.
> >>>
> >>>
> >>>
> >>>
> >>> -----Original Message-----
> >>> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> >>> Behalf
> >>> Of Brandon Hendershot
> >>> Sent: Saturday, February 06, 2010 11:11 AM
> >>> To: Tesla Coil Mailing List
> >>> Subject: Re: [TCML] Safely Grounding a Tesla Coil
> >>>
> >>> Hi Jim,
> >>>
> >>> Could you explain the concept of "counterpoise" for me or provide a
> >>> link to some documentation? I've never heard of anything like it...
> >>>
> >>> Thanks btw,
> >>> Brandon
> >>>
> >>> On Feb 5, 2010, at 9:39 PM, jimlux <jimlux@xxxxxxxxxxxxx> wrote:
> >>>
> >>>> Brandon Hendershot wrote:
> >>>>> Hi all,
> >>>>> I know that it's said that you need an entirely seperate ground
> >>>>> rod
> >>>>> when opperating tesla coils because the high voltage grounding
> >>>>> through the house wiring is extremely dangerous to anything
> >>>>> plugged
> >>>>> into any other grounded outlet on the same circuit.
> >>>>
> >>>>
> >>>> Not precisely..
> >>>> You need a separate RF return for the coil, be it a counterpoise,
> >>>> good grounding system, etc.
> >>>> The reason you don't want it interconnected too well with the
> >>>> "house
> >>>> ground" is that it will propagate HV transients into your house
> >>>> wiring system (by capacitive and inductive coupling).. those
> >>>> transients wreak havoc on most consumer electronics.
> >>>>
> >>>> I wouldn't say "extremely dangerous".. I'd reserve that for
> >>>> something like juggling chain saws.
> >>>>
> >>>>
> >>>>
> >>>> But what if you attached the coils
> >>>>> ground wire directly to the ground rod. It would be bypassing the
> >>>>> house wiring, so the high voltage won't be running by any precious
> >>>>> electronics inside the house. It shouldn't be running back up into
> >>>>> the house right?
> >>>>
> >>>> Exactly.. But there is a problem because at some point, you need to
> >>>> bond to the "green wire ground" at least for things that are
> >>>> plugged
> >>>> in or that you might touch (e.g. equipment cases).
> >>>>
> >>>>> I'm trying to be minimalistic so I don't have to try to pound down
> >>>>> a ground rod of my own.
> >>>>
> >>>> Think counterpoise.. a big conductive sheet.. chicken wire works
> >>>> well. A circle that has radius = the height of the top load above
> >>>> it.
> >>>>
> >>>>
> >>>> Hook that to the bottom of your secondary.
> >>>> _______________________________________________
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> >>>> Tesla@xxxxxxxxxx
> >>>> http://www.pupman.com/mailman/listinfo/tesla
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> >>> Tesla@xxxxxxxxxx
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> >>> 07:35:00
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