To add to the above, it's a good idea to have a permanently mounted LED voltmeter inside. Voltage can often fluctuate over 24 hours, depending on how many other occupied sites there are and how many are running AC units. Other RV-ers can also drag the voltage down around lunch and dinner time due to some folks using electric appliances in addition to AC units.
If you see voltage at around 110 you may want to keep an eye on it. If it gets below 105, that's when it can cause damage to AC units.
If you do encounter low voltage, as mentioned, an autoformer may keep you going when you'd otherwise have to shut the AC off. An EMS unit is a good investment as it will automatically shut you down on low voltage.