Even just a Google Search for RV electrical systems will give you lots of information.
The above mentioned references are great for the 12VDC side of things, but you also want to know about the 110VAC:) This is one of the reasons that an RV can become confusing, as they have multiple systems, and really need to understand them all...at least enough to use them:)
Another great help, if you can get it, is to spend some time with one of the Techs where you get the RV (assuming you are buying from a dealer, since you are waiting 2-weeks). They should give you a walk-around, and you can pick their brain too! Some Salesmen are knowledgeable, some aren't:(
And, there is always right here at RV.net:)