Re: Ideas for HV Wiring.

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

I suggest you consider yourself fortunate. That stuf is low voltage 6-8oov.I
dont even trust RG213. I put that in vinyl tubing and dont touch it. Ounce
you get nailed hard you dont forget and you tend to be cautious.
   Robert  H

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Sun, 27 Jan 2002 23:31:48 -0700
> To: tesla-at-pupman-dot-com
> Subject: RE: Ideas for HV Wiring.
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Sun, 27 Jan 2002 23:55:06 -0700
> 
> Original poster: "Neil Richardson by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <neil-at-opticalrealities-dot-com>
> 
> The Coax is just from the local DIY shop, the stuff used to connect the VCR
> to the TV. Its a good thing that the spark gap was 1mm, cos thats where I
> caught the 2 wires by accident. If the spark gap was larger I might have had
> a discharge or 2 thru me from the cap bank. Now that would not have been
> pretty.
> 
> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: 27 January 2002 22:23
> To: tesla-at-pupman-dot-com
> Subject: Re: Ideas for HV Wiring.
> 
> 
> Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <jimlux-at-earthlink-dot-net>
> 
> What kind of coax were you using?  Cable TV coax is worthless (foam
> dielectric)... RG-213 or RG-8 (nominal .405" OD) shouldn't have any problem.
> And, if the shield is grounded (as it should be in this application),
> there's no way you should feel anything. If you do, there's something else
> wrong.
> 
> 
> ----- Original Message -----
> From: "Tesla list" <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Sunday, January 27, 2002 12:29 PM
> Subject: RE: Ideas for HV Wiring.
> 
> 
>> Original poster: "Neil Richardson by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <neil-at-opticalrealities-dot-com>
>> 
>> Coaxiel is good for 20-30kV? Thats what I thought till I grabbed the
> cables
>> from my flyback in one hand, I could feel a buzzing thru the cables, thats
>> when I thought of the oil insulation idea. I might god out and get the
> stuff
>> to make some HV cabling, I wanna be as safe as I can be. There is some
>> silicone in the kitchen cupboard which I can use to seal the cables. I'll
>> prolly have to have bolts at either end so I dont have to make new wires
>> each time the this wire inside snaps.
>> 
>> -----Original Message-----
>> From: Tesla list [mailto:tesla-at-pupman-dot-com]
>> Sent: 27 January 2002 18:33
>> To: tesla-at-pupman-dot-com
>> Subject: Re: Ideas for HV Wiring.
>> 
>> 
>> Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>"
>> <jimlux-at-earthlink-dot-net>
>> 
>> The coax itself is actually good for 20-30 kV without too much trouble
> (and,
>> if you are running a grounded center transformer like a NST, the voltage
> to
>> ground is halved (why they do it)).
>> 
>> Oil works great, except: 1) It leaks; 2) It gets wet and contaminated,
>> greatly reducing its dielectric strength.
>> 
>> However, it is a good idea, because it does help reduce the corona, and is
>> what they do on some HV power transmission cables, where they pump the oil
>> in under pressure (also it provides cooling on an underground cable).
>> 
>> Bear in mind that the field concentrations due to different dielectric
>> constant occur even with oil, unless you happen to match the epsilon of
> the
>> dielectric with that of the oil.  Granted, it's not as bad as air, where
>> you've got a 1:2.5 kind of ratio (or 1:5 if you're using castor oil), but
>> even the 2:2.5 kinds of ratio can cause problems if you're pushing it.
>> Small water droplets, dust, or gas bubbles in oil also cause problems.
>> (paper and fabric fibers are notorious for this...they're long and skinny,
>> and line up with the field pointing the high stress points (ends) at the
>> worst direction).
>> 
>> ----- Original Message -----
>> From: "Tesla list" <tesla-at-pupman-dot-com>
>> To: <tesla-at-pupman-dot-com>
>> Sent: Saturday, January 26, 2002 5:25 PM
>> Subject: Ideas for HV Wiring.
>> 
>> 
>>> Original poster: "Neil Richardson by way of Terry Fritz
>> <twftesla-at-qwest-dot-net>" <neil-at-opticalrealities-dot-com>
>>> 
>>> I noticed a post about corona => ozone => blah blah blah?
>>> If you can't find any HV wire anywhere (like me) why dont you simple use
>>> coaxiel wiring, use the centre wire, feed that through some hose pipe,
> and
>>> fill the hose pipe with oil. That will supress the corona, and possibly
>> make
>>> it safe to handle the cables even when energised.
>>> 
>>> Just a little idea
>>> 
> 
>