Another Ground Question

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  #1  
Old 08-29-12, 10:13 AM
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Another Ground Question

I have a 200amp meter/disconnect combination panel on the outside of the house. I need to know where to attache the ground in the box that will run to the UFER. See pics

I'm thinking it will be from the small acorn on the bar on the right side below the disconnect.

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Can I use #6 solid copper or do I need #4. Also can the solid copper go thru the same hole (at the bottom of the panel to the basement) that the supply wire will go thru. I'll be placing a 2in metal nipple in that hole to run the wires to the main breaker in the basement.

Thanks for your help
Dano
 
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Old 08-29-12, 10:27 AM
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Ufer grounds are installed in the footings before the house is constructed. It should have been a #4.

A #4 should fit in any hole on the ground/neutral bus.
 
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Old 08-29-12, 10:49 AM
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Thanks for the quick response. The UFER was put in with the new construction. So do I need a #4 solid copper wire and not #6 to run fron the Meter/disconnect to the UFER?
 
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Old 08-29-12, 11:11 AM
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An unspliced #4 is required to an approved clamp on the rebar. If there is a copper already sticking out of the CEE it is going to need an irreversible splice.
 
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Old 08-29-12, 11:37 AM
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Also can the solid copper go thru the same hole (at the bottom of the panel to the basement) that the supply wire will go thru.
If you're running conduit to the panel, use an insulated conductor for the GEC.

I need to know where to attache the ground in the box that will run to the UFER... I'm thinking it will be from the small acorn on the bar on the right side below the disconnect.
I'm thinking to one of the lugs below the meter. If both points are bonded, it may not matter. What will matter is having the GEC and the neutral bonded to each other and to the enclosure here, and having them separated, with the neutrals isolated, in the panel inside.
 

Last edited by Nashkat1; 08-29-12 at 11:48 AM. Reason: to correct an inaccuracy
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Old 08-29-12, 07:24 PM
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I'll be placing a 2in metal nipple in that hole to run the wires to the main breaker in the basement.
You have the main breaker in the meter/disconnect combination. You really don't need another main breaker in the panel in the basement.
 
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