Low Shore Voltage
Last week we ran into an issue where the campground shore power for our site was only coming in at 104 volts(30 amps). We have a Progressive surge protector and it would not let the power flow. Report...
Forum Discussion
SoundGuy wrote:
As far as low voltage is concerned, if you've decided against an autoformer as a solution then your other best choice is an EMS with low voltage threshold disconnect. In that case it might be reasonably argued that a hard wire version wired in at the trailer end is a better choice than a portable version because any voltage drop will include that caused by resistance of the main service cable feeding the trailer. With a portable unit plugged in at the post it's only displaying source voltage at that location, before main service cable resistance results in further voltage drop. That's not to say one can't locate a portable at the trailer, even inside where a hard wire would normally be located, but I'd bet very few owners of portable EMS units actually do this and instead simply plug in at the post thinking that's all there is to it. ;)
Hard wiring inside the rig adds convenience/security but doesn't make a lot of difference in the voltage that gets to the appliance.
-Boost then it drops over the length of the cord
-Drops over the length of the cord then boost
Especially if you need an extension on your cord because the pedestal is a long way away, having the booster near the pedestal means the cord is running at lower amps which reduces voltage loss in the cord and the likelihood of the cord/plugs overheating.
