[Amps] RG-213 Hi pot ?

[Steve]

Indeed, other brands give the same number. I wonder if they all measure 
exactly the same result?

If you search for voltage breakdown figures for the polyethelyene 
dielectric you'll find numbers from 18kV/mm (450V/mil) going upwards. 
RG213 has dielectric 2.5mm/100mil thick.

OK, these are numbers for large flat surfaces at sea level with no 
humidity etc., and coax has an inner with curvature (although far short 
of a sharp point) but even so I think there's a lot of headroom above a 
5kV figure.

Steve

On 13/05/2019 14:10, Joe wrote:
> Interesting,
> 
> I was curious on this also, so Googled it and Pasternack has a datasheet 
> for RG-213U
> and it says it is only 5K
> 
> Max. Operating Voltage(VRMS): 5000
> https://www.pasternack.com/images/ProductPDF/RG213-U.pdf
> 
> Joe WB9SBD
> 
> On 5/12/2019 12:13 PM, Steve Thompson wrote:
>> I think 213 will take that easily. It was a while ago, but I'm sure 
>> that I couldn't detect any leakage on 213 with my tester maxed out at 
>> 16kV. A local 'maker' group used it to repair a 35kV lead on a laser 
>> cutter. As far as I know it's working ok.
>>
>> Good quality RG58 should take 8kV without any problems - again, I've 
>> had it at the limit of my tester. I suspect the cable working voltage 
>> specs are often derived from connector limitations.
>>
>> Steve
>>
>>
>>> Does anybody know how much max V is on RG-213 ?   Like what are the 
>>> results if a hi-pot tester used..
>>> and say cranked up to the point where  just a few microamps occurs 
>>> .     I have an application where I need a  HV
>>> cable, less than 10 ft, that will  easily handle 5700 /  7700 vdc. It 
>>> will be hardwired at both ends, no HV connectors. And with braid 
>>> peeled way back from the center conductor, like  2-4 inches .  The 
>>> plan was to also wrap some red electrical tape every few inches along 
>>> its  entire  length, to readily identify it as a HV cable.
>>>
>>> Tnx....  JIm   VE7RF
>>
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>>
> 
>