Re: Very Confused On Grounding

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Malcolm Watts" <m.j.watts@xxxxxxxxxxxx>

On 14 May 2005, at 11:59, Tesla list wrote:

> Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>
>
> At 04:02 PM 5/13/2005, you wrote:
> >In the Terry Filter he shows one side be grounded to RF (spark gap
> >side) and the other side of the filter be tied to the NST case.
> >Wouldn't this cause major RF on the NST case and maybe inducing into
> >house lines?
>
> Interesting thought...  I was thinking the NST case might be hit by
> streamers in which case it would be best to have it tied to the RF
> ground.  "Maybe" there are situations where the case would be best
> tied to the AC.  But I normally just use the AC ground for safety
> since it is terrible and conducting RF.
>
> All my coils have MOVs and dual-stage line filters on the AC line too
> :-)  So maybe if you are worried, you would want to do that as well.
> That stuff can be far back at say the AC power outlet.  Mine are
> inside the variac controller.
>
> Cheers,
>
>          Terry

Speaking of which - I don't see why a safety gap discharge should be
a requirement for grounding the NST case to the RF ground. ?? The
safety is simply shorting the NST secondary. As long as streamers
from the secondary are never allowed to come into contact with the TC
primary or transformer case I don't see a reason to tie the NST case
to the RF ground. ?? I've always tied my transformer cases to the
mains ground. Anyone advocating the RF ground approach care to
elaborate?

Malcolm


Malcolm