GROUNDING/BONDING

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NMCB13

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Florida
LITTLE CONFUSED WITH THIS ISSUE. HAVE A 600A-208 VOLT MDP. FROM THIS MDP I AM EXTENDING (3) FEEDERS.
FEEDERS:
1. 3 PHASE, 208V, 200 AMP, WYE
2. 3 PHASE, 208V, 200 AMP, WYE
3. SINGLE PHASE, 208V, 200 AMP,WYE

THESE FEEDERS WILL SERVE THREE NEW PANELBOARDS. FEEDERS SHALL ENTER THE BOTTOM OF EACH PANELBOARD. AT THE TOP OF EACH PANELBOARD AND CONNECTED TO EACH IS A 6"X6" WIREWAY. FROM THAT WIREWAY I AM EXTENDING SEVERAL 2-1/2" EMT CONDUITS TO ANOTHER WIREWAY (24"TOTAL LENGTH) FOR RELOCATING BRANCH CIRCUITS IN A ATTIC. WHAT IS THE PROPER WAY TO GROUND AND BOND THE EQUIPMENT?
 
Re: GROUNDING/BONDING

Technically, nothing needs to be grounded. This is done at the service. Run a properly sized EGC with each feeder and bond this EGC to the equipment enclousure in which the feeders terminate. From that point, run properly sized EGC's with each branch-circuit. Follow 250.96(A) for any additional bonding that may be needed for other raceways and equipment.
 
Re: GROUNDING/BONDING

Please turn off the ALL CAPS feature. It makes the post more difficult to read. It is also considered impolite, as though you were SHOUTING at us.
 
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