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
enblethen wrote:
You must understand that between RV pedestals and the rig is not a branch circuit but a feeder circuit. There is different criteria.
What it's claimed, vs how it is potentially used, are two different matters. Burning the place down or overheating any electrical circuit is no good. Wires get hot, copper gets malleable, terminals then get loose, aggravating the amount of surface area flowing electrons. Enough cycles, with no one maintaining or tightening the screws, burns the place down. This is not fiction, it is fact, no one does the proper maintenance, going down and tightening all the screws at an RV park, or changing out the female receptacles when they get worn out, from plugging and unplugging, and running A/C and microwaves, all summer long.
It is so cheap, insurance wise, to slightly overengineer on wire requirements, so, to me, as a General Contractor, it's a no brainer. Slighty more efficient heavier gauge Wire is cheap compared to rework labor.
When I am in an RV park, microwaving a baked potato for 6 minutes, and my AC kicks on again and the lights dim in my TT, I KNOW it's not doing anything good for my AC unit, it, instead is shortening the life of the AC motor, capacitors, and windings on my AC unit. Who pays for that when it fails, sooner, rather than later? I do, not the cheap skate that wired the whole place on the cheap, to save a buck. Do you think I will ever return to that RV park when I know this? Only if I am a fool.
