[BC] RG-8

[Cowboy]

On Thursday 03 April 2008 01:43 pm, Bob Groome wrote:
>  This begs a question:
>  
>  What is the power rating for RG8? Will it handlle
>  1.5 kW 1 kw 100% Modulated) and a little for
>  safety in case there is a VSWR?

 For a little while, sure !
 More, at DC.

>  My old books 
>  don't have plane RG8. A little math says you'd
>  have about 225 volts of RF for 1,000 watts and
>  4.45 amps. I seem to recall that the coax is good
>  to 500 volts. Maybe it's the PL259 that has the
>  voltage limit. But I sure remember RG8 running
>  very warm at 1000 watts.
>  
>  Thoughts?

 It's lossy.
 There's a greater danger from melting the dielectric than flash-over.

 I've run as much as 5400 watts through a short run of RG8, for a very
 short period of time. ( maybe 2 minutes )
 I'd *never* do it unattended, or without full knowledge of what
 might happen !

-- 
Cowboy