Re: Coax Cable for High Voltage?

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

Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>" <Tesla729-at-cs-dot-com>

In a message dated 2/27/01 6:17:50 PM Pacific Standard Time, tesla-at-pupman-dot-com 
writes:

<< As far as the coax goes, I personally wouldn't use it. I really isn't
 designed for it >>

Hi Robert, all,

I'm inclined to agree with Robert on this one. A lot of the coaxial
cable available out there is designed for evry low voltage / power
systems, like cable TV. Some of the heavier duty (RG-58) coax
is designed for fairly high voltage RF. X-ray cables are probably 
the best suited for HV transmission lines in Tesla service. They
are made just like a coax cable, with the grounded, braided outer
conductor. However, they are usually at least 3/4" in OD and de-
signed for ~ 75 kV. The inner conductor consist of 2 or 3 seperate
conductors, isolated from each other for the few volts for the filament
of the x-ray tube. If you can find an x-ray euipment surplus source,
you may be able to find x-ray HV cable leads for a very reasonable
price. The only drawback to these cables is that they are rather 
hard to splice reliably, considering the voltage levels that go thru 
them.

David Rieben