Jump to content
Sign in to follow this  
Charlie R

Is there a distance requirement?

Recommended Posts

If a garage or other out building has a secondary panel with a 3-wire feed and separate ground rod, no metallic path between the buildings where the primary and secondary panels are located, is there a distance requirement (minimum or maximum) between the primary and secondary panels, or is it between the buildings, or no distance issue at all? Thanks.

Share this post


Link to post
Share on other sites

If a garage or other out building has a secondary panel with a 3-wire feed and separate ground rod, no metallic path between the buildings where the primary and secondary panels are located, is there a distance requirement (minimum or maximum) between the primary and secondary panels, or is it between the buildings, or no distance issue at all? Thanks.

The distance is irrelevant.

- Jim Katen, Oregon

Share this post


Link to post
Share on other sites

Thanks Jim, I couldn't remember if, after some distance, you were required to have a separate ground or could still use a four-wire feed. The decision to use the four wire feed or three-wire with a separate ground is not distance driven, just preference?

Share this post


Link to post
Share on other sites

Thanks Jim, I couldn't remember if, after some distance, you were required to have a separate ground or could still use a four-wire feed. The decision to use the four wire feed or three-wire with a separate ground is not distance driven, just preference?

I'm flying without references today, but I believe that pre-2008, the NEC allowed you to choose *if* there were no continuous metallic pathways between the buildings. As far as I know, post 2008 that choice is gone and you're supposed to run 4-wires to any building fed from the service regardless of distance.

- Jim Katen, Oregon

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...