While your at it, get yourself a plug in volt meter. I keep it plugged in the rv where I can view it. You would be surprised to know how many CG's have poor voltage when they become crowded and everyone is running things like two AC's.
The last KOA I was at showed 92 volts coming off the pedestal. I then plugged in my 'Hughes Autoformer' to boost me up to 110 v.
I protected the Hughes by first installing to the pedestal, a Progressive Industries surge protector SSP-30x @ $100 plugged into the pedestal.
Then I plugged the Hughes into that. The SSP 30x protects the expensive Hughes at approx. $400-500 or whatever they cost today.
Even though the Hughes has a little bit of surge protection built in, it is not that much , that's why I added the SSP/30, it offers protection of the entire package that follows it in line.
The third piece of the puzzle is a Surge Guard 34931 at approx. $350 which protects the rv. That plugs into the Hughes.
So to review the order, its the pedestal, the SSP 30x, the Hughes, then the Surge Guard then into the rv.
An electrician advised me to set it up that way. The idea is to sacrifice the cheapest component, being the $100 PI SSP-30X , to protect the others incl the rv.
So far after using it this way for years, nothing has been damaged and I've been thru power outages and poor state/county grid systems that simply can't handle the loads. I cover the entire package of 3 devices inside an altered tote box to protect it all from rain and keep it all out of sight. Its all padlocked to each other as well as the pedestal. I place 2 extra large dog bowls and a spiked dog collar with a chain on top of the tote box. Nobody has every bothered it and I don't have a dog that big.
