Meter and Disconnects Together

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FiveStar1

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We have a new manufactured unit, where the meter socket and 2 - 200 amp disconnects are in the same box. If one of these units were mounted close to a ground mounted transformer. 2 ground rods driven and grounded this unit. Then 1 200 amp feeds a house and 1 feeds a barn. Both the barn and the house would have panels with main breakers. Drive ground rods, bond water lines ( plastic to well ) and ground both panels. My question is: Would 3 conductors to each bldg. be ok? Or do you have to run the ground with them? Thanks for all your help.
 
FiveStar1 said:
We have a new manufactured unit, where the meter socket and 2 - 200 amp disconnects are in the same box. If one of these units were mounted close to a ground mounted transformer. 2 ground rods driven and grounded this unit. Then 1 200 amp feeds a house and 1 feeds a barn. Both the barn and the house would have panels with main breakers. Drive ground rods, bond water lines ( plastic to well ) and ground both panels. My question is: Would 3 conductors to each bldg. be ok? Or do you have to run the ground with them? Thanks for all your help.
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Welcome to the forum. The answer would depend on the code cycle you're under. Under '05 and no other metallic paths between the service and remote structures. You would be ok. But under 08' it's a no go
 
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Might be some debate due to the definition of a "structure" and dependent on which Code cycle you are under, but under the '08 Code there is little doubt an equipment ground would need to be run to the house and barn and a grounding electrode system established at the barn and house.
 
The problem with the 08 rule is ,

What if you have a water main that qualifies as a GE? Does that mean you need to run a GEC as well as EGC to the house?
 
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