Wire gauge for a 200 ft run on 30 amps or 50 amps?

map40 wrote:

Lynnmor wrote:

2oldman wrote:
advice.

Thank you for that, I cringe whenever I see this and it reminds me of the state of education in America.

No, no, don't go blaming the state of education in America. Here is the problem: I speak 6 languages and use them frequently, so my phone and computer do not know what I am writing and the autocorrect wants to commit suicide every time I chat with somebody different. You should see it when I go from Spanish to Cantonese...

That would be horrible...........

Old story about a Ferrari owner who had a mechanical problem, and couldn't decide whether he should consult a mechanic who just graduated from Ferrari School, or the old guy down the street who was "uneducated" but has been working on Ferraris for 30 years. Hmmmmmm....... Wonder what he did.

Sorry to get sidetracked. Couldn't resist.

Lynnmor wrote:

2oldman wrote:
advice.

Thank you for that, I cringe whenever I see this and it reminds me of the state of education in America.

No, no, don't go blaming the state of education in America. Here is the problem: I speak 6 languages and use them frequently, so my phone and computer do not know what I am writing and the autocorrect wants to commit suicide every time I chat with somebody different. You should see it when I go from Spanish to Cantonese...

Google voltage drop calculator.

Yes 3% although for a dedicated RV you can probably size it for 35 to 40 amps but not less than #6.
Definitely go 4 wire 120/240 circuit.

It's always nice to get good advice, as long as the person giving the advice is qualified to advise you on how to do it properly. :)
I agree, use heavy wire and do it right the first time.

2oldman wrote:
advice.

Thank you for that, I cringe whenever I see this and it reminds me of the state of education in America.

3% for voltage drop.
Hopefully, Old Biscuit is indicating copper wire and not aluminum.
Direct burial or are you going to put in conduit?

I'll second what @Old-Biscuit said. Don't scrimp on wire. As wire is expensive in those sizes, it is none the less the cheapest part of the whole deal, when you consider also the just the hassle of blown fuses/breakers, brown-out damaged gear, etc.

The grammar gods have struck again. :B

advice.