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Sub panel wiring

Calhouncm

Member
Joined
Apr 20, 2014
Messages
17
Hello,

I’m working on setting up a 100 amp sub panel in my new pole barn. I have a 4 wire going to the panel. Ground and neutral will not be bonded. I’m in upstate NY. I’ve purchased two ground rods that I’m going to setup 8’ apart. What I’m trying to confirm is how to wire to the ground rods.

What size wire do I need to the ground rods?
Does the wire need to be coated or can it be bare?
Stranded or non stranded?
Does there need to be conduit ran to the ground rods from the box?

Thank you for any advice.


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mc4life27

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Jul 2, 2014
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404
Someone will correct me if I’m wrong. If you use 4 gauge you can use solid and bare anything smaller needs to be in metal flex or some kind of conduit. Now as far as the runs use a ground clamp on each rod and run two separate runs to the panel. That way in case one get damaged the other will still work. Here
Is one install I did and the inspector was happy and said he has not seen some take the time like this in awhile. To me it’s nothing special. IMG_0741.jpgIMG_0742.jpgIMG_0743.jpgIMG_0744.jpgIMG_0745.jpg



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pattenp

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Jun 4, 2008
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10,175
Location
Virginia - USA
#6 bare solid copper is typical for the rod conductor. If you use metal conduit as a protective sleeve it needs to be bonded to the rod conductor. The rods need to be on a single run, not two.
 

Terry D

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St. Louis, MO.
Last edited:
OP
C

Calhouncm

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Apr 20, 2014
Messages
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Thank you all. Can I bury the conduit a few inches down to have it out of sight and not getting hit by a weed eater? Or does it need to be visible for the inspector?


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75gmck25

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Jul 21, 2014
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Location
Alexandria, VA
You can dig a bowl-shaped depression around the head of the ground rod, and drive the rod down below the surrounding ground level. Then after inspection you just cover it over so its not visible.

Bruce
 

wyliesdiesels

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Aug 14, 2012
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Location
Modesto, CA
Someone will correct me if I’m wrong. If you use 4 gauge you can use solid and bare anything smaller needs to be in metal flex or some kind of conduit. Now as far as the runs use a ground clamp on each rod and run two separate runs to the panel. That way in case one get damaged the other will still work. Here
Is one install I did and the inspector was happy and said he has not seen some take the time like this in awhile.
To me it’s nothing special. IMG_0741.jpgIMG_0742.jpgIMG_0743.jpgIMG_0744.jpgIMG_0745.jpg



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yes you are wrong. #6 is the largest size needed for rods that doesnt need to be in conduit. #8 would require conduit.

And running 2 separate GEC is wrong as well. Thats a code violation. the inspector wasnt paying attention. you should remove that and run one piece of #6 copper.

And While your at it Fix the Drainage on that place....

Sand Bags.. geezzz :yikes:

you might want to specify who you are talking to. the person who posted the pics is not the OP
 
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