On 11/09/2010 07:48, Ian White GM3SEK wrote:
> Jim W7RY wrote:
>
>>> The DC dielectric strength of polyethylene being on the order of 20
>>> kV/mm, I
>>> suspect that the rated stuff is not very different from ordinary everyday
>>> coax except for testing and qualification, but I just feel better using
>>> components withing their specifications when I can.
>>>
>>> 73, Carl WS7L
>
>> I have RG-59 on my SHV connectors. Works fine with 4100 volts. Check
>> out the specification of RG-59.
>>
>> 73
>> Jim W7RY
>>
> Same here, with no problems ever.
>
> You needn't feel uncomfortable about using RG59 if the published voltage
> rating is based on a test case that wouldn't apply to you. For example
> if the published rating is based on arcing across a square-cut open end,
> that rating wouldn't apply to use with SHV connectors where the braid is
> stripped a long way back.
>
>
I use RG400 PTFE coax with MHV and SHV connectors for B+ and TNC
connectors with RG58 for B- ... works a treat and has become our contest
group's defacto standard
Mike G8TIC
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