Re: X-ray HV cables

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Original poster: "MIKE HARDY" <MHARDY@xxxxxxxxxx>

I'll answer my own inquiry. On the surface of this remaining HV cable is a
black hard plastic covering about 0.5 Mil thick. Then about 3/8 " red
rubber-like insulation, and the center conductors. Seems the black plastic
is what's conductive. I sanded off the black plastic, down to the red. The
red doesn't conduct. If I remove say 8" of this black coating on each end,
do you think I'll be alright? Will this conductive "shield" cause the same
kind of  capacitive resonance problems a true braded shield might. I don't
intend to ground anything, however the cables will be laying on the ground.
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Tuesday, November 01, 2005 1:52 PM
Subject: X-ray HV cables


> Original poster: "MIKE HARDY" <MHARDY@xxxxxxxxxx>
>
> I got a 150 KV rated xray HV cable. Per D.C.'s recomendations, I
> stripped the outer jacket, removed the braded shield, and cut off the
> 'candlestick' ends. I then reterminated to acomadate the connections
> as I needed. The outer jacket (what was under the shield CONDUCTS !!
> It nicely shorted the hv output of my PT! What's going on here? Is
> this normal? I placed the hv leads of a 15kv nst at 2 points on the
> insulation away from the conductor, and it happilly arced! Any
> thoughts would be apreciated.
>
>