[AMPS] Re: RF choke forms

[measures]

>
>About,
>
>"The other problem is that RF chokes and loading coils can be subject to
>direct arcing between turns."
>
>Hmmm,

€  an 8973, no doubt.  My guess is that he's using water-cooled vac. 
variables and a water-cooled tank L.  .  .  
>
>Most modern "enameled style" magnet wire is rated at 2 kV insulation.
>But lets take just 1 kV, and use a solenoid plate RF choke example with
>100 turns. With 3 kV on the plate, divided by 100, that's only 30 volts
>per turn, and you have 1 kV of insulation facing another adjacent turn
>also rated at 1 kV. So it's unlikely that a properly functioning plate
>choke could ever arc between turns, with an effective 2 kV rating
>between them? Quite a safety factor, 30 to 2000.
>
€  Indeed, Roy      High temperature, motor rewinding wire is rated at 
200 degrees.  A twisted pair will easily withstand 5000VDC for 48 hours.  
The only time I have seen it break down in a HV-RFC was at a choke 
resonance.  

cheers

-  Rich..., 805.386.3734, www.vcnet.com/measures.  


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