320A Resi Pedestal Service

H

HuntNJ

Member
Location
NJ
Occupation
Electrician
Im bidding a new construction house with a 320 pedestal service. Give or take 150ft from the house. Correct me if I'm wrong.

The pedestal will have a 320 amp meter socket and (2) -200 amp main breaker disconnects.

(2) - 2" Seperate conduits from each disconnect to the house.

Do I still need 2 disconnects on the house or can the conduit go straight inside to the (2) 200 amp main breaker panels.

I will also need two ground rods at the pedestal and a ufer Ground (if available) at the house?

Water bond would be sized the conductors of the sub feeds? so a #4 copper would be fine?
 
HuntNJ said:
The pedestal will have a 320 amp meter socket and (2) -200 amp main breaker disconnects.

(2) - 2" Seperate conduits from each disconnect to the house.

Do I still need 2 disconnects on the house or can the conduit go straight inside to the (2) 200 amp main breaker panels.
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An you have two supplies to a single structure?
 
Code cycle 2020

I just have a PDF drawing. It doesn't show where the equipment is going and has a single dwelling house with an attached garage.

I've never done a 320 pedestal.

I was assuming it would still count as one supply to a single structure but I'm not sure.
 
So 225.30(B) in the 2020 will permit the two feeders from the service equipment to the house. Prior codes would have only permitted a single 400 amp feeder between the house and the remote pedestal.

225.32 will require the disconnects at the house to be outside or inside nearest the entrance of the feeder conductors, so depending on the location of the interior panels the main breakers may be suitable as the required building disconnects.

Both panels would have to be grouped together per 225.34(A).

You will need a grounding electrode system at the house, but tied only to the equipment grounding bar(s) and to the feeder equipment grounding conductor. If there is 10' or more of underground water piping, that piping must be used as part of the house grounding electrode system.

If there is no underground water piping, but the interior water piping system is metal, it must be bonded per 250.104(A)(3). The bonding conductor would be sized based on a 200 amp OCPD and Table 250.122.
 
Does the Utility require the disconnects at the meter? I know some due.

If they are required at the meter label the disconnects "Emergency Disconnect" " Not Service Equipment"

You can then run 2 sets of service entrance conductors (around here 4/0 URD) to the house and at the exterior of the house install your Service disconnects.
 
He may be able to put under building anywere he wants as soon as it penetrates the home—— some areas don’t care about service dissconet outside—- I mean just but and pull the meter lol
 
what im hoping to do is two disconnects next to the meter pedestal to meet the emergency disconnect code and then two conduits to (2) main breaker 200 amp panels in the basement next to each other
 
230.85 is not applicable in a lot of our area but with his meter dsiconnects 150 ft from the house would 230.85 not require the disconnects at the house to be emergency dioscnencts
 
augie47 said:
230.85 is not applicable in a lot of our area but with his meter dsiconnects 150 ft from the house would 230.85 not require the disconnects at the house to be emergency dioscnencts
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NJ is on the 2020.
The 2020 just states a readily accessible outdoor location. I think he can go directly into the basement with service entrance conductors.
The 2023 would require something on the exterior of the dwelling before entering the basement..
 
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