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utility building ground rod #92151
02/28/05 11:33 PM
02/28/05 11:33 PM
S
sparkync  Offline OP
Member
Joined: Oct 2002
Posts: 830
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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Re: utility building ground rod #92152
02/28/05 11:47 PM
02/28/05 11:47 PM
S
Speedy Petey  Offline
Member
Joined: Aug 2003
Posts: 173
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
Re: utility building ground rod #92153
02/28/05 11:52 PM
02/28/05 11:52 PM
S
shortcircuit  Offline
Member
Joined: Jun 2004
Posts: 610
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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