RV Outlet NEC Code Question

Kayteg1 wrote:

time2roll wrote:
Not an electrician but putting that combo TT-30 and 5-20 outlet should not be an issue using the existing 30 amp feed. Nothing wrong with multiple outlets on one branch circuit, the 5-20 has a 20a breaker to limit power so good to go IMO.

Of course it does become easier to draw more than 30 amps and still most sub-panels have more branch capacity than the main feed.

You can have the city inspect your work if you have any concerns.

I am General Contractor and not expert in electrical, but did electrical in the past.
When I think your technical conclusion is correct, from the experience I can tell the City Inspector does not have to have electrical knowledge, although he might.
What inspectors do is checking out the build with the design, meaning you need to design and have it approved by Building Department for the inspection.
The Dept should have qualified planer who can elaborate on the design in their office.
Codes change from state to state and from city to city, so you can never tell....

And this is why, if the OP has a burning desire to install this RV pedestal (or "Stand" in NEC parlance) AND get the blessing of his local code authorities, he needs to figure out EXACTLY what they want to see. The issue is that most here are guessing and making assumptions based on what they know, and understand. Things like how to wire a sub-panel, and that the calculated loads involved are linear, with no factors applied. (As in, "you need a 50 amp feed, since you have a 30 and 20 amp receptacle) Bottom line is section 551 of the National Electric Code deals with RV electrical supply installations and it has little overlap with other types of installations. How many of you would expect to find pairs of massive feeder conductors, as in 3/4" diameter wires, bolted inside of a 50 Amp pedestal, with no breaker that size anywhere. How many understand a ten foot tap rule? RV park wiring has lots of things a typical residential electrician might find odd, or even wrong. The theory and practice is also very driven by the manufacturers of the equipment, and NEC rules can defer to doing installations, "according to manufacturer's instructions".

As I noted earlier, ALL of this depends on the local inspector, and they may be extremely competent, or clueless. A case in point is the poster who discussed how the inspection went on his garage sub-panel installation. Quite literally, several of the code agencies I have done business with would take the information the poster provided, verified it, and fire the inspector. In tough enforcement areas, missing ground rods, unverified trenching, and conduit installation, and other possible violations are not trivial matter. In other jurisdictions, you're lucky if the clown will take the time to drop his Snickers bar and coffee cup long enough to step out of the truck,and take a quick glance, before passing the job.