[TowerTalk] Balun for G5RV

[Steve Hunt]

Here are a couple of simple calculations based on EZNEC predictions of 
the impedance at the end of the G5RV ladderline - where the 1:1 balun 
operates:

40m: Z = 27-j78
At the 1500W level, I = 7.5A rms and Vpk = 875v

30m: Z = 37 + j291
At the 1500W level, I = 6.4A rms and Vpk = 2,655v

Are we sure that the cables being recommended for the bifilar winding 
can withstand those sorts of voltages? I'm not familiar with the US THNN 
cable, but from what I see on Internet pages THNN #12 is rated at 600v.

Steve G3TXQ