Low Voltage on One 50A Leg
In several campgrounds I've noticed that my 50A legs were "unbalanced". For example, unloaded, L1 at 105V and L2 at 117V. What's causing this?
Forum Discussion
Gdetrailer wrote:
I suspect what the OP is seeing is an issue in the campgrounds electrical system coming from MORE 30A 120V usage..
Most pedestals will by default have the 30A 120V outlet on the SAME "Line" and most likely that default IS L1, and more folks will be hooked up to the 30A outlets..
Hence the reason OP is seeing the voltage mismatch..
Given that the pedestals would presumably all be wired identically, it would be very odd for a campground not to wire up half the pedestals in the loop with the two legs swapped from the other half of the pedestals, such that the 30A sockets would tend to balance each other out. There's nothing other than an arbitrarily chosen convention that makes one particular leg L1 rather than L0, after all.
