I see... well, that's pretty common at any campground or rv park pedestal - no 'Main' breaker at the pedestal since each circuit already has it's own breaker - a 30amp and 20amp, in your scenario.
The 'Main' breakers are at the campground's own Utility 'Main Panel', of which sometimes there are several, or many, depending on the size of the campground, number of sites, etc.
I don't see where, though, 116volts is any issue - seems like that's actually more 'normal' than not, most anywhere.
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