Newbie! 30 amp to 20 amp converter
HI folks, I'm brand spanking new to RVing. The trailer I am attempting to make "usable" is a 1988 Companion Classic. Needs work. My question: when using a 30 amp to 20 amp plug converter do...
Forum Discussion
troubledwaters wrote:
Some people should not be giving electrical advice; they don't know what they're talking about. There definitely is 240V available in a 50A RV; it's just not generally used.
Only if you are on a 50 amp site.. But that is not applicable because the OP said he has a 30 amp Rig.
Now why do 50 amp rigs have 120/240 volt (just like your house)?
Imagine there is 0.2 ohms of resistance per wire between YOU and the power transformer. now at 50 amps you will lose 10 volts EACH WAY that's 20 volts round trip... Or is it.
With perfectly balanced load on your system pulling the maximum amount of power your RV can draw (effectively 100 amps) you'd loose 40 volts round trip if it was 120 volt wire. but only 10 PER LEG so yoru 120 volt become 110 Still good power.. your Surge Guard likely drops out at around 109 or 105
How is this? Well on 50 amps with a PERFECTLY balanced load panel no current flows in the neutral (it only carries the DIFFERENCE between L-1 and L-2) so each amp is used twice.
But on 30 amp (or an all one side panel) the neutral carries the full load.
