Question on wire size for 30a
I need to install a 30a RV outlet on the side of our house for our trailer. I need to go about 60 feet from the panel. Would 10/2 Romex be sufficient, or should I go bigger?
Forum Discussion
Look at the gauge of the pigtail wire that comes out of your RV. What gauge is it? Mine is 10 gauge and I have a 30 amp service/genny on my RV. The pigtail is about 20 feet long. I also have a 25 foot extension cord which is also 10 gauge which I rarely use. (three conductor) I would not use any further extension cords unless all the extension cords were 8 gauge or less. (larger) You have NO CONTROL over the line voltage at the panel. It may be 125 volts on a slow day, it may be 110 volts (or less) when the electric company is working hard on a hot summer day. W = V X A. Watts equal volts times amps. If the voltage goes down, for whatever reason, the amps must go up to maintain the system. Circuit breakers and wire are sized based on amps. That doesn't even take into consideration derating for LRA (Locked Rotor Amps) or LCL. (Long Continuous Loads)
Is it worth it to save a few bucks on the installation if you have to go out and reset a flipped breaker every other day? Or worse yet, replace a burned up motor, or even worse yet, repair fire damage? I think not! Your choice.
Chum lee
Is it worth it to save a few bucks on the installation if you have to go out and reset a flipped breaker every other day? Or worse yet, replace a burned up motor, or even worse yet, repair fire damage? I think not! Your choice.
Chum lee
