Re: [TCML] X-ray cable best practices for feeder cable

[sparktron01@xxxxxxxxxxx]

Hi Phil
 
------------------------------- 
> Dave, how about repeating your story of the  direct current power cable with 
> a pinhole burned through the insulation every  foot? :)
--------------------------------
>>Circuit was used to electrostatically treat (perforate) paper.
>>Normal operation of sparks through paper stimulated a nasty
>>spur at ~450Mhz, pinholes were seen repetitively ~ every 12"
>>through 70kV UL Listed shielded X-Ray cable.  Power was a
>>2kVA permanent magnetic field Georator generator 120V, 2.0Khz
>>stepped up via transformer to 12kV.

http://www.georator.com/index-2.html

>>Management didn't understand high Q nature of transmission
>>line; solution was ballasting resistors at SG load end, another
>>possible solution would have been 100-150kV shielded X-Ray
>>cables, IDK if UL listing was available (~30 years ago).
--------------------------------
SNIPPO.
> 
> 
> That's why you stick arrestors and transient  devices all over the place 
>     BTW, Dave, do you still have all those  MOV's?
---------------------
>> Yes and if anyone on TCML needs varistors, please contact me off
>> list, I have them from 120VAC up to 700-800V, they are new
>> Littlefuse stock, with alarm contact and thermal OL to present UL
>> standards.  Cover a little cost for my computing, Tesla needs and
>> shipping.
--------------------
SNIPPO

Regards
Dave Sharpe, TCBOR/HEAS
Chesterfield, VA USA

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