Low Voltage on 50A - A First

Hi CAtraveller,

I saw 106 today on the pedestal which is 50 amps. I'm heating 100% electrically again this year. I use a break out box which gives me a 30 amp outlet on one leg, and twin 20 amp outlets on the other leg.

I have 3 shore power cords, the oem 30, a 20, and a 15 amp.

I'd love to have an autoformer--but I want one from Mexico that has more than one set of taps.

If voltage at pedestal with nothing connected is OK(above 122V), then circuit is being overloaded, causing voltage drop, OR provider voltage is too low. At one campsite, the supply voltage was actually low, although the wiring was fine, and there was plenty of amperage available. Load did not cause any more voltage drop, it was just low from the source. VERY uncommon, in any site that is subject to regulation and inspedtion, Government facilities(COE) does NOT have to adhere to the regulations and standards that they enforce upon everyone else. If you would like to know more about this, PM me.

I don't use my Autoformer often, but when I need it, I'm glad I have it. Using it here where I am parked for 3 weeks.

Yes, I know the voltage, amps (HW50C remote provides that informaion) and CBs for each phase.

Reducing the load should increase the pedestal voltage. Turning off only "one" AC unit may keep the rig cool and raise the voltage within limits. If you can tell which of the AC unit on is on the higher phase would or could increase even more. If you can read each phase then select the AC unit on the one with higher voltage.
Older parks definitely have some strange wiring configurations and methods.

enblethen wrote:
I would not do anything except check the loads within the rig.
Turn off 120 volt electric water heater if equipped. See if voltage goes up.
Turn off one of the AC units and see if voltage goes up.

Turning off ACs raised the voltage and the rig started to warm up. As I recall it went up to about 106V.

The low voltage was park and not rig related. Not what i wanted for 50A power.

I've stayed at this park before and was always suspicious of how the pedestal was wired. One pedestal with 30A and 50A shared by 2 adjacent sites. Those type of site arrangements always make me wonder if both plugs are adequately wired back to the distribution panel.

I would not do anything except check the loads within the rig.
Turn off 120 volt electric water heater if equipped. See if voltage goes up.
Turn off one of the AC units and see if voltage goes up.

Wait until it happens three times then buy a PowerMaster.

I found a Hughes on Craigslist for $150.
I have experienced low voltage too often in FL in the summer.
More likely on 30 but on 50 too.