Residential Remote Pedestal Mount

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Schen

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New Haven, CT
New guy. Been lurking and reading for the last few weeks and have managed to thoroughly confuse myself.

I am designing a 320A Pedestal mount for a new residence. The pedestal contains the meter socket, 2-200A service disconnects and a 4-slot load center buss connected to one of the breakers.

The GEC originates at two ground rods 8' apart at the pedestal and is landed on the equipment ground and the MBJ is in place.

Each 200A breaker will feed a 200A MB load center in the basement. I will size the conductors as a 4-wire feeder using T310.16 with #4Cu as EGC.

Questions: Now that the footings are ready to pour I need to tie the CEE to the GEC. I would also like to pick up the steel well casing on the same path.

1) I think the proper way is to run a #4 Bare CU to either one of the ground rods or to the Ground Bus in the service disconnect?

2) Can I stub up from the CEE with a #4 to the MB Load centers in the basement or does this create a parallel path to ground? The purpose of this connections is mainly for intersystem bonding.
 
You might want to take a look at 225.30 before proceeding. You can't run 2 feeders to the dwelling.
 
Is pedestal essentially at the house or remote from the house?

Remote = no chance you will have 2 feeders supplying the house.

At the house - see if AHJ will allow it as the service for the house. He wouldn't have to allow it, but mobile homes have to be done this way. If you find a way to attach it to the house it is no longer a separate structure, but you may find something that is designed to mount on a wall is probably going to cost less.
 
The meter base/disconnect could be mounted on the structure. But the HO wanted it across the driveway (approx 35').

As I understand it there are two options.
1) move the outdoor compressor loads to the meter main load center thereby reducing the feeder load to less than 200A and run one feeder to the house.

2)Attach the meter base/disconnect to the exterior wall of the structure.
 
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