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Re: ISEF display
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> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Re: ISEF display
> Date: Tuesday, March 30, 1999 4:36 PM
>
> Original Poster: forlaser-at-gte-dot-net
>
> before you go and build this puppy, you better be certain you will be
alowed to
> use it. From what I remember of the ISEF rules (I did the science fair
thing
> back some years ago) you cant use more than about 20v, unless it's
properly
> insulated per some national code. I'm not sure what code would say about
> insulating a 200,000 volt source of harmonic rich AC, but i'm sure the
safety
> inspector at the fair will raise an eyebrow from the neon sign
transformer, let
> alone the coil. Another part of the rules included a clause that said
there can
> be nothing distracting or offensive. even a small coil makes a heck of a
lot of
> noise, so you might get complaints there. Also coils through off ALOT or
RF
> interference. An ISEF has one of the highest 'packing desnities' for
electonic
> and computer gear I've ever seen outside of an electronic and computer
gear
> trade show. You might run into problems there to... I don't want to be a
stick
> in the mud, but I just thought I should let you know about potential
problenms
> you may have...
> Pyroguy
>
Good comments.. Why not kill many birds with one faraday cage. It will
solve the interference problems, and if you interlock the door to the cage
with the power supply (i.e. a switch in the AC power that only closes when
the door is closed), it will address the legitimate safety concerns. Put
all your gear inside, and operate it through the walls of the cage with
plastic rods.