4

In Colorado, I have a covered RV carport on concrete pad about 50' away from the house; just a roof, no complete walls. There is a 50A receptacle fed with 4 conductors.

I would like to add a small load center at the location so I can put in some 20A receptacles.

Do I need to add grounding rods or is the EGC bonding to the main panel sufficient? I know there are rules for detached buildings but I'm not sure what to rules apply here.

Improve this question
1
  • I imagine that having a load centre/panel detached from the main building is the main point for ground rods. I believe it is to reduce the power from a lighting strike from going into the main panel. Commented Apr 14 at 14:10

1 Answer 1

Reset to default
6

It's a detached structure, whether or not you think of it as a building, so, 4 wire feed and local ground electrode system bonded to the ground in the feed.

Or; yes, you need a local ground rod. Unless, of course, someone had the foresight to build an Ufer ground into the concrete pad, which would be better than a ground rod.

Improve this answer
1
  • And in this era, having a 20A 240V circuit or better might be good for potential car charging purposes. Not that you said what voltage your 20A outlets were to be. But that one will be less expensive as a hardwire to EVSE so you can take advantage of the GFCI in the EVSE and not need a 240V GFCI breaker, which are rather expensive, but required for an outdoor/garage receptacle. Commented Apr 14 at 16:25

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.