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#92151 - 02/28/05 07:33 PM utility building ground rod
sparkync Offline
Member

Registered: 10/17/02
Posts: 811
Loc: NC
Can't seem to find the code reference now, but am I correct that even though a 4 wire feeder is run to a detached utility building, a ground rod is still required at the utility building, and the ground wire from the 4 wire feeder, and the ground wire to the new ground rod would go on the same ground bar that is isolated from the neutral bar ? Thanks Steve...

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#92152 - 02/28/05 07:47 PM Re: utility building ground rod
Speedy Petey Offline
Member

Registered: 08/29/03
Posts: 175
Loc: Upstate, NY
Yes. Any detached structure requires a ground rod. That is any one with a sub-panel.
Your description is also correct.

[This message has been edited by Speedy Petey (edited 02-28-2005).]
_________________________
Speedy Petey

"Anyone who has never made a mistake has never tried anything new." -Albert Einstein

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#92153 - 02/28/05 07:52 PM Re: utility building ground rod
shortcircuit Offline
Member

Registered: 06/27/04
Posts: 608
Loc: massachusetts
250.32(A) requires a grounding electrode at the building.If you use a rod electrode and you don't have 25 ohms or less, add one additional electrode as required by 250.56

250.32(B)(1)describes the proper installation arrangement of the EGC and the grounded conductor.(float the neutral)

shortcircuit

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