shore power 110 or 220

So just take your meter to the pedestal and measure the voltages. Be sure to use a voltage range over 240 in case the 240 volt diagram is correct!

I think I have read that some big RV air conditioners use the 240 volts, making 50 amp RVs exactly like homes as far as electricity goes.

CT_WANDERER wrote:
Hey to stir the pot up a little more. If you only had single pole breakers in your house panel would that make your house 120 volt? The only difference between the house and RV is you do not have circuit that has a double pole breaker. If you meter both buses in your house panel and both the RV buses you get the same reading.

This is the point I was trying to make. We're talking about the input voltage, 240v. Also the breaker panel designed to handle 240v. The branch circuits may be 120v but that's secondary.

Ask this guy what he thinks. If the 50 amp RV is a 120v RV but accepts a 240v input then I guess a 30 amp RV should as well.

220v in 110v system

luberhill wrote:
I see the heavy cords and plugs for the class C's so is power at campgrounds 110 or 220?

It might be a 30 amp class C and then what should we talk about?

Hey to stir the pot up a little more. If you only had single pole breakers in your house panel would that make your house 120 volt? The only difference between the house and RV is you do not have circuit that has a double pole breaker. If you meter both buses in your house panel and both the RV buses you get the same reading.

I don't know if Jim is a newby or not, he has been a member for several years and it is interesting to read some of his past posts. He has delved into this subject before.

As mentioned in another post, "Just my two cents worth".

dodge guy wrote:
Just because the two 120 lines that come into an RV add up to 240V doesn't make it 240V`s!!

There you go...As I suggested several pages back, why even bring up "240V" when there is seldom a 240V application (appliance) in an RV? Why not create more confusion and call it "half 480V"? The 240V term is used only because it looks like a 240V plug, smells like 240V, etc. In most residents there is an actual 240V demand appliance.

paulcardoza wrote:
EVERY SINGLE ONE OF THESE 50A THREADS ENDS IN MASS CONFUSION!

You got that straight Paul... I'm trained in this kind of thing so I understand it.. I even understand WHY they do it that way.

But explaining it to some of the folks around here..... Well, not going to happen.

NOTE: You can change forums if you like, but the above still applies.

Just because the two 120 lines that come into an RV add up to 240V doesn't make it 240V`s! The RV uses those 2 lines separately as 120V. the only time it makes up 240V, is when it is wired as such to a dryer.

If a 50A RV was 240V then you would have completely different appliances and lights. plug a 110V appliance into a 240V system and let me know how it works out for you!

Too much confusion...If I had the electrician standing at the receptacle, I'd tell him I need 2~120V hot + neu. + gnd. and not mention 240V.

Stay tuned for the next exciting episode of "RV Shore Power" where we'll explore the vast mysteries that surround supplying electrical power to an RV. Read what our quest writers, many with no electrical background or qualifications, say as they attempt to explain this extremely complicated and mysterious subject.

Keep your eyes open, the next episode will be coming soon to an RV forum near you. Who knows, perhaps the truth will finally be unveiled in the next episode. Beware though, many will claim it's just another conspiracy to hide the REAL truth. You the reader will have to decide if the mystery has finally be unraveled or if the truth continues to be hidden from us.

Should be a nail biter you won't want to miss.