250.24(A)(1)

[Leespark57]

My question is regarding the connection of the grounding electrode conductor to the grounded service conductor. Would the following be code compliant?

Three family residential service, 120/240 with a public meter.
Service entrance conductors 250 kcmil copper THHN
Four gang meter socket (3 plus a public) with NO disconnects.
SE cables feeding 4 100 amp main breaker panels inside the building.
A #2 copper GEC from the water service to the meter socket.
A #6 copper supplemental from 2 ground rods to the meter socket.
No additional GEC's to the 4 main breaker panels.
Bonding jumpers (green screws through neutral bars) in all panels.
The power company has no objection to running into the meter socket.

Thanks in advance

 

[jap]

On a different note,

How far do the SE conductors travel inside the building before they get to the MB Panels?


JAP>

 

[Strathead]

My question is regarding the connection of the grounding electrode conductor to the grounded service conductor. Would the following be code compliant?

Three family residential service, 120/240 with a public meter.
Service entrance conductors 250 kcmil copper THHN
Four gang meter socket (3 plus a public) with NO disconnects.
SE cables feeding 4 100 amp main breaker panels inside the building.
A #2 copper GEC from the water service to the meter socket.
A #6 copper supplemental from 2 ground rods to the meter socket.
No additional GEC's to the 4 main breaker panels.
Bonding jumpers (green screws through neutral bars) in all panels.
The power company has no objection to running into the meter socket.

Thanks in advance

Japs question is pertinent, but if you look up Mike's many diagrams discussing this issue you will see that the installation is code compliant. The bonding of the grounded to grounding must be anywhere before or at the first means of disconnect. It is. If neutral and the ground are bonded together at the first means of disconnect then there is no additional grounding wire before the first means of disconnect. However, the location of the first means of disconnect is what Jap is getting at.

 

[Smart $]

Japs question is pertinent, but if you look up Mike's many diagrams discussing this issue you will see that the installation is code compliant. The bonding of the grounded to grounding must be anywhere before or at the first means of disconnect. It is. If neutral and the ground are bonded together at the first means of disconnect then there is no additional grounding wire before the first means of disconnect. However, the location of the first means of disconnect is what Jap is getting at.

Needs more clarity, if not more accuracy. :angel:

The Grounding Electrode Conductor(s) must be connected to the grounded conductor at or anywhere between the Service Point and the Service Disconnecting Means. The grounded conductor must be connected to the Equipment Grounding Conductor(s) at the Service Disconnecting Means.

 

[Leespark57]

On a different note,

How far do the SE conductors travel inside the building before they get to the MB Panels?


JAP>

I should have been more clear, the main breaker panels are located immediately inside the building, so no issue there.

Running the GEC to the meter seems like a better alternative than common grounding electrode with taps to multiple service disconnect enclosures 250.64(D), but I just wanted to make this this is an acceptable method.
Thanks