50 amp question
I had a situation at an RV park the other day and I need some help to understand what happened. Of course, this happened late at night. My surge protector showed low voltage (108 volts) on one of the...
Forum Discussion
enblethen wrote:
Fifty amp is two legs of 120 volts. It should read 240 volts between the two parallel blades in the receptacle.
When installed the system should have an equal amount of load on each leg.
A common problem in parks is there is more 30 amp, single 120 volt leg, are plugged into the circuit. This causes the voltage to drop on that leg.
For that reason I rotate L1 and L2 between each power pedestal. If everyone used 30 plugs I'd have a balanced load on each leg.
It sounds as if the 108v leg has a poor connection somewhere adding a lot of resistance and causing the low voltage... or several nearby trailers are pulling from one leg causing a voltage drop.
My power company had a bad neutral several months ago, causing my tenants to see 135 volts on one leg, 105 on the other... and 15 volts neutral to ground! Squirrels!
