[TCML] Safely Grounding a Tesla Coil
brandonhendershot at gmail.com
Sat Feb 6 13:53:05 MST 2010
I can't find any info on how an antenna can ground something. Can you
provide a link or attempt to explain it in detail for me?
On Feb 6, 2010, at 12:24 PM, "Tim Wenzel" <cuba_pete at cox.net> wrote:
> Pick up a little info on antenna systems, more specifically 1/4 wave
> and half wave antennas. This is a highly efficient ground setup,
> but takes some area for proper operation. Probably more effective
> than a single ground rod for high frequency coil operation.
> ----- Original Message ----- From: "Brandon Hendershot" <brandonhendershot at gmail.com
> To: "Tesla Coil Mailing List" <tesla at pupman.com>
> Sent: Saturday, February 06, 2010 12:10 PM
> 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
>> Thanks btw,
>> On Feb 5, 2010, at 9:39 PM, jimlux <jimlux at earthlink.net> 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
>>> 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
>>> Hook that to the bottom of your secondary.
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>>> Tesla at pupman.com
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