[TowerTalk] SWR and voltage

[Steve NR4M]

Hello all,

As I recall, in a 50 ohm system, 1500 watts is about 400 volts and about 
6 amps.   Could someone give me an approximation of what I could expect 
at 2:1 and 3:1 SWR?

Or, direct me to a formula.

I am looking at some gas discharge devices to help me mitigate lightning 
issues and damage.
I have been using low voltage ones for years with low voltage DC control 
lines and such, and now I'd like to try and apply them to the coax lines.

73 de Steve NR4M