There are rules.. and rules, and Rules (rules for everything)
The rules for Electricity are the rules from Reddy Kilowatt. (Actually he's the mascot of a power company I grew up with)
You have lots of "Stuff" in your RV. some are "BIG" ticket items, some Small, some (The fridge mostly) kind of in between
Small ticket items.. TV, Sat receiver, Fans and the converter (IF THE BATTERIES ARE FULL (Note; it can be a big ticket item if they are hungry depending on they converter)
Big ticket items: Water heater, A/C, Microwave and Converter with empty batteries.
15 Amp. forget A/C. The converter and TV's is about it, run Fridge on Gas
20 Amp. you might be able to do ONE A/C.. (Mine tripped the breaker where I am now so it's fans only for the next few days less I run a 2nd cord)
You should be able to run the fridge though..
30Amp Add a BIG ticket, possibly two of 'em but only one A/C... Good 30 shoudl run one A/C, Fridge, Water heater **OR** Microwave but not both at once.. weak 30 you will need to drop at least the fridge.
50 amp: All you can eat.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times