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Re: Damages to Electronic Equipment
How about adding a Faraday cage made of chicken wire!
My radio is very silent in my garage since I mounted that stuff.
Ruud de Graaf
Holland
Date forwarded: Mon, 14 Feb 2000 12:44:45 -0700
Date sent: Mon, 14 Feb 2000 12:32:17 -0700
To: tesla-at-pupman-dot-com
Subject: Re: Damages to Electronic Equipment
Forwarded by: tesla-at-pupman-dot-com
From: Tesla List <tesla-at-pupman-dot-com>
> Original Poster: "Jim Lux" <jimlux-at-jpl.nasa.gov>
>
>
> -----Original Message-----
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
> Date: Monday, February 14, 2000 7:35 AM
> Subject: Damages to Electronic Equipment
>
>
> >Original Poster: "David Kronstein" <david_kronstein-at-telus-dot-net>
> >
> > Hello
> >
> >I have a _very_ expensive computer in the room above where I am
> >going to run my tesla coil.
> >I haven't run it yet because i'm afraid it might damage it.
> >The computer is connected to a network, phone and cable TV
> >Could the network act as an antena and pick up interference?
>
> Why certainly it could...
>
>
>
> >There are three computers on the network.
> >
> >Could this damage anything?
>
> You bet it could.. but, fortunately, it isn't likely, IFF you take a few
> precautions. Check the archives for extensive discussions and practical
> results...
>
> Off hand, For the greatest practical benefit, I'd say your best bet is to
> make sure all the wiring going into and out of the computer boxes is well
> filtered and has surge suppressors. Especially the network cables. There
> are commercially manufactured transient suppressors for Cat 5 network
> wiring, which is what I would use. (Home construction of something that
> will meet Cat 5 is going to be, to say the least, challenging, if not
> impossible.) Companies such as ProTek Devices (http://www.protek-tvs-dot-com/ )
> and PolyPhaser (http://www.polyphaser-dot-com/) might be worth consulting, if
> only for the applications notes.
>
> That is, try to protect the sensitive device, rather than filtering the TC
> (which you should also do, for other reasons).
> >
> >The coil is powerd by a single 15KV 60mA nst.
> >
> >Would covering the ceiling with some sort of grounded mesh be
> >enough to protect it?
>
> Not necessarily...The fields from a TC don't propagate like light, so they
> can easily go around things (the wavelength is very long (300+ meters), and
> a mere 10x10 meter sheet of conductor effectively isn't there.. The signals
> can also be carried on a wire that goes around (or through) your ground
> plane. This is why filtering the output of the TC is kind of tricky.
>
> >
> >Thanks
> >
> >
> >
>
>
Met vriendelijke groet,
Ruud de Graaf
Software Engineer
Oce Nederland B.V.
rdgraaf-at-ocenl.nl
tel: 073-6815303