Re: Coax Cables for High Voltage Transmission (fwd)

[<sroys@xxxxxxxxxxxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 17 Nov 2004 22:34:46 -0600
From: Dr. Resonance <resonance@xxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Coax Cables for High Voltage Transmission (fwd)


As I recall it's made by Devkon.  I'm in AZ so I can't run out to the shop
and check.


Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913
----- Original Message ----- 
From: "High Voltage list" <hvlist@xxxxxxxxxx>
To: "hvlist" <hvlist@xxxxxxxxxxxxxxxxx>
Sent: Wednesday, November 17, 2004 9:55 PM
Subject: Re: Coax Cables for High Voltage Transmission (fwd)


> Original poster: <sroys@xxxxxxxxxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Wed, 17 Nov 2004 14:14:32 -0500
> From: Jack Vandam <snotoir7674g@xxxxxxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>, hvlist
<hvlist@xxxxxxxxxxxxxxxxx>
> Subject: Re: Coax Cables for High Voltage Transmission (fwd)
>
> Thanks for sharing!  If I might ask, what type of epoxy are you using to
> glue the PE tube to the metal?
>
> Thanks,
> Jack
>
> ----- Original Message -----
> From: "High Voltage list" <hvlist@xxxxxxxxxx>
> To: "hvlist" <hvlist@xxxxxxxxxxxxxxxxx>
> Sent: Wednesday, November 17, 2004 2:00 PM
> Subject: Re: Coax Cables for High Voltage Transmission (fwd)
>
>
> > Original poster: <sroys@xxxxxxxxxxxxxxxxx>
> >
> >
> >
> > ---------- Forwarded message ----------
> > Date: Wed, 17 Nov 2004 11:06:01 -0600
> > From: Dr. Resonance <resonance@xxxxxxxxxx>
> > To: High Voltage list <hvlist@xxxxxxxxxx>
> > Subject: Re: Coax Cables for High Voltage Transmission (fwd)
> >
> >
> > Polyethylene or polypropylene works better as it has less creepage and
> > leakage current factors than pvc.
> >
> > We drill out the entire interior part of a SO-239 chassis connector.
They
> > we epoxy a 5 inch long PE tube into the SO-239 connector.  At the end of
> the
> > tube we epoxy in a small bananna receptacle.
> >
> > This allows a nice fit to standard RG-8 cable as a DC HV connector.  The
> > shield is soldered to the PL-259 plus while the center part is stripped
of
> > the braided shield as it extends into the PE tube with a bananna tip
> solder
> > to the coax cable tip.
> >
> > Dr. Resonance
> >
> > Resonance Research Corporation
> > E11870 Shadylane Rd.
> > Baraboo   WI   53913
> >
> > >
> > > John, thanks for sharing your info on the hv connectors!  That design
> may
> > be
> > > just what I have been looking for.  I hope you don't mind if I ask you
a
> > > couple of questions:
> > >
> > > What diameter and lenth of pvc pipe did you use and does it tightly
fit
> > the
> > > polyethylene jacket of the cable?
> > >
> > > I see you used sheet pvc for the ends of the insulators.  Could pvc
end
> > caps
> > > have been used instead?
> > >
> > > Any other info you want to share would be appreciated.  I have a +/-45
> KV
> > > metal housed x-ray transformer sitting here for which I would like to
> > access
> > > the high voltage for hobby and other uses.  Right now, it's sealed
> inside
> > > the case and I have been thinking of making recessed terminals and
> > > connectors so I can have high voltage access.  The insulated pve
> recesses
> > > would be mounted through holes drilled through the metal chassis.
> > > Connectors/ insulators similar to yours may in fact do the trick.
This
> > > route may be the cheapest method (which is what I seek) and the other
> > > alternative is to remove the transformer and rehouse it in a new
> > container.
> > > Didn't have much with that option until lately when I found some pvc
> > "boxes"
> > > that would work, although they are expensive.
> > >
> > > Thanks,
> > > Jack
> > >
> > > ----- Original Message -----
> > > From: "High Voltage list" <hvlist@xxxxxxxxxx>
> > > To: "hvlist" <hvlist@xxxxxxxxxxxxxxxxx>
> > > Sent: Tuesday, November 16, 2004 2:20 PM
> > > Subject: Coax Cables for High Voltage Transmission (fwd)
> > >
> > >
> > > > Original poster: <sroys@xxxxxxxxxxxxxxxxx>
> > > >
> > > >
> > > >
> > > > ---------- Forwarded message ----------
> > > > Date: Mon, 15 Nov 2004 13:37:39 -0700
> > > > From: John Doran <johnd@xxxxxxxxxxxxxxx>
> > > > To: hvlist@xxxxxxxxxx
> > > > Subject: Coax Cables for High Voltage Transmission
> > > >
> > > > Howdy!
> > > >
> > > >
> > > >
> > > > I use polyethylene-insulated RG-8 cable extensively for high-voltage
> > > >
> > > > use in my laboratory, at potentials up to 20 kV, and I have never
had
> a
> > > >
> > > > problem with it.
> > > >
> > > >
> > > >
> > > > Spellman High Voltage uses it for potentials of only up to 8kV in
> their
> > > >
> > > > products,
> > > >
> > > >
> > > >
> > > > www.spellmanhv.com/tech/appnotes/AN-07.doc
> > > >
> > > >
> > > >
> > > > but I have a Del Electronics 40kV power supply "brick" that employs
> RG-8
> > > >
> > > > cable for its output connection.
> > > >
> > > >
> > > >
> > > > I have devised a simple HV connector for use with coaxial cable, and
> > > > which
> > > >
> > > > may be modified for just about any potential.  I have posted details
> on
> > > > my
> > > >
> > > > Web site-take a look at
> > > >
> > > >
> > > >
> > > >             http://timefracture.org/reg.html
> > > >
> > > >
> > > >
> > > > for more information and some photographs.  Please stay safe!
> > > >
> > > >
> > > >
> > > > -John
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> >
> >
>
>
>