Re: Ideas for HV Wiring.

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

Original poster: "sundog by way of Terry Fritz <twftesla-at-qwest-dot-net>" <sundog-at-timeship-dot-net>

Hmm.  coax sounds worth a try to me, I have a few hundred feet left on a
500' spool of RJ59 I bought to re-do all the cable TV drops in my house.  I
think it's a 22 or 20ga center conductor.  Feeding it through tygon tubing
sounds like a plan.  On that note - for feeding a drop through any
substantial length of conduit/tubing/etc, I use a ball of twine and a wad of
plastic (usually cigarette wrapper) or cotton bud.  Tie the twine to the
wrapper, and then use a shop-vac to pull it through the tubing-conduit.  Tie
the other end to the wire and just pull it on through. Don't suck the
plastic or string into the vac, it may make a mess. Ran a fiber-optic drop
*up* six stories like that in 15 min flat.

I'll throw a length of the coax on the floor, juice up the pig, and see how
long (or if) it pops through to the grounded braid. No way in hell I'm going
to touch the stuff while it's energized (Stupid Hurts), but if it keeps the
HV where it belongs, it works.

Thanks Marc!
------------------------------------
Shad (Sundog)
G-1 #1203
"To call someone crazy just shows
you can't understand their views on Life."
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, January 30, 2002 10:22 AM
Subject: Re: Ideas for HV Wiring.


> Original poster: "Metlicka Marc by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <mystuffs-at-orwell-dot-net>
>
>
>
> Tesla list wrote:
> >
> > Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <jimlux-at-earthlink-dot-net>
> >
> >
> >
> > That coax is usually low loss foam dielectric stuff, totally unsuited
for
> > HV.  For HV use, you want the stuff with a dielectric should be a solid
> > translucent waxy substance (i.e. polyethylene or teflon).
>
>
> Correct in that all the industrial hv cable i've worked with uses an
> ultra high molecular weight poly of 1.5" for 2400v and upwards of 3" for
> 15kv. This stuff you couldn't barely chip with Jed clampets best
> whittling
> knife. I would spend an hour on one splice until a lineman showed me the
> nice little tool that clamped on the cable and with a few twists it cut
> all three steps into the cable (like a big coax cutter). Each step for
> the shield, the semi conductive layer and the poly dielectric. I will
> not say i didn't have a few hv splices blow apart as soon as the power
> was applied, A humbling expedience indeed, but in it i don't have any
> doubts that a good coax would work on lower current coils. The best coax
> might even work on medium current coils, At the first time i saw hv
> cable i even said "it looks like BIG coax to me"
>
>
>
>