grounding in series?

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mayjong

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well ,kind of.
(05NEC) have a single overhead service, split to 3 @100A panels. (triplex)
panels are side -by- side.
all ground to nuetral bond bars are in place and landed.
contractor ran #6 solid from one ground bar, to the next ground bar, to the next ground bar.
then ran a #4 solid (from the "last" panel ) to the uffer.
is this creating some sort of parallel path for faults (either nuetral or ground)?
can't wrap my hands around the violation, but i'm sure it's there...
 
The "path" is unavoidable, but the method used does not meet NEC. See 250.62(D). The "taps" are permissible, but "loops" are not.
 
thanks... it seems as though the "taps" must connect to the common grounding electrode conductor.
what about connecting the taps to the "last " panels groundbar? so all the taps are landed on 1 bar,(the same on the common grounding electrode conductor is landed on) rather than the "loop" effect?
 
If you have an '05 Handbook, Exhibit 250.26 is a good illustration. I don't like "intent" answers, but in this case I will say it is my understanding the intent is to assure the electrode conductor path remains intact if any one of the service enclosures is removed. I believe the wording substantiates that. For that reason, connecting more than 1 tap to any of the panelboards would be a violation, IMHO.
 
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