Lol, thats new, my house has scre in fuses. Most are 30 amp. They didn't seperate the runs back then.Camp ground voltage will likely be low when lots of folks are running their a/c. You won't even know you are operating your a/c at low voltage cuz some one on a forum said you are good to go cuz you are using a 30A plug, what a crock! Let's not even consider as temps rise all the RV a/c are using more power dropping the voltage more and more.
The OP may be gone so lets show pics of our 1954 home with 7 or 9 20A breakers
no 240v, 60A service.
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