Regulation of volts coming from the power pedestal?

Does a campground have the ability to fix...:

Generally no, however they can call the power company and request they fix it.

(Some power transformers are multi-tap and the power company will often, at the campground's request, set the output to a slightly higher voltage during the peak season.. When it comes to "off season" and less load.. The voltage climbs too high,, This is not something the CG can fix however as they do not have the key to that box. Only the power company does)

While this is a high voltage for the USA, the good news is that most devices are going to run just fine at 132V. Even though the US is nominal 120V, Mexico is nominal 127V and most products are designed with a wide enough operating range to work in either country.

Your readings are not out of line.
It could be a little high right now, however once heavier loads are placed on the system like portable heaters or air conditioning units, the voltage will drop well within limits.
Many utilities set the voltages higher to accomodate higher demands.

OP here: My digital readout for my Surge Guard varies in readings. Today it has pretty much ranged from 131 on line 1 while line 2 read 124 to another reading was 128 on both lines. In the last 10 minutes it was 126 on line 1 while line 2 was 129. Right now line 1 is 129 while line 2 is 127.

I have not tested shore power plug because my multimeter prongs are not long enough to reach inside of the shore power plug. Slightly disappointed in the private campground because their electrician is actually on site today (100 whole yards away) and has not come up to take some basic test readings from the shore power plug.

I worked for the power utility in my province in Canada. We used to set the voltage coming out of the substation or regulator at around 123V-124V. This gave a little higher voltage to the homes that were close and it dropped as it went down the line. At the end of the line we wanted to keep it above 115V-116V. So if you are close to the supply you could have 124 X 2 = 248V at the plug in. As mentioned the voltages on each leg should be within a few volts of each other so I would think 126V should be about the highest you would see. If you check across the plug and have more than 250V you might want to check with the utility to see if they can lower it for you.
Brian

The campground should have the ability to keep the voltage at 125 or less.
Most likely high voltage is caused by a poor neutral connection that needs to be corrected.
Trouble is by the time the electrician comes out all might be equalized and it is declared good to go.

The campground "could" have control, but only if the primary power transformer belongs to them. This is not normally the case.
Check between the two side slots on the pedestal. You should have 240 volts. Then check each of the side terminal to the bottom terminal. They should bothe be within a volt or two of each other.
Then check between the top terminal and each of the side terminals. They should read within a volt or two.
If the side terminals to neutral and ground are uneven then the campground has a wiring problem.
If the voltages are within tolerance at the receptacle, remove the cover from your 120?240 volt distribution panel. Perform the same tests there.
You could have loose connection on the neutral. Could be in panel or could be in transfer switch.

No the park has no control over voltage. If you are seeing 132 volts on one leg there is a wiring problem. You need a simple voltmeter to test. First, test across the two hot legs (the left and right slots on the pedestal) It should read around 240 volts, if it does, the correct voltage is being supplied. Next test the left slot to the bottom slot and the right slot to the bottom slot. They should both read very close to 120 volts and be within a few volts of each other. If there is a big difference, the neutral is not making good contact somewhere in the line, time for the park's electrician. If they both check out at the pedestal, you either have a bad neutral in your RV or the neutral for the park is failing under load. If it is the former, check the connections at the breaker panel in your rig. If it is the latter, park electrician time.

This is probably caused by a faulty neutral leg somewhere in the power distribution.

Here is a link that gives a good instruction on how to check a RV power pedastal.

www.myrv.us/electric

Altern wrote:
I don't believe they have any control of voltage. They can, however, request a recorder to monitor line voltage over a given time period. Very useful in monitoring low voltage occurances. Higher voltages handled by surge protectors.

I do have a surge protector onboard.