detached garage disconnect means

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jbwhite

Senior Member
What is the code reference that says that a detached building needs to have a main disconnect at that building, not at the main building?
 
I found this out just the other night at a continuing education course. If you have more than 2 circuits feeding a detached garage or structure you have to re-establish the ground by driving a ground rod. I didn't ask what section of the code it came from (I guess I should have) but has anyone else ever heard of this ? If so, do you happen to know where in the code it is referenced ?

Thanks,

Phil,
Gold Star Electric
New Jersey
 
How can one have more than two circuits feeding it anyhow?
Aren't we limited to one circuit (MWBC included)?

After that you must provide a means of disconnect anyhow.
 
250.32 Buildings or Structures Supplied by Feeder(s) or Branch Circuit(s)
(A) Grounding Electrode Building(s) or structure(s) supplied by feeder(s) or branch circuit(s) shall have a grounding electrode or grounding electrode system installed in accordance with 250.50. The grounding electrode conductor(s) shall be connected in accordance with 250.32(B) or (C). Where there is no existing grounding electrode, the grounding electrode(s) required in 250.50 shall be installed.

Exception: A grounding electrode shall not be required where only a single branch circuit supplies the building or structure and the branch circuit includes an equipment grounding conductor for grounding the conductive non?current-carrying parts of equipment. For the purpose of this section, a multiwire branch circuit shall be considered as a single branch circuit.
 
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