Grouping?

[Little Bill]

Is there a definition of "grouped"? I saw, on another site, where there was an existing 200A service with meter only outside and panel inside, but not back-to-back. The service was upgraded to 400A (320A). The new 400A meter replaced the 200A meter. There were double lugs in the new meter, one to existing panel, and one to a panel that was added inside. Problem I saw was the new panel was 10' from the existing panel. Owner of the house said it was inspected and approved. If this had been in my area, we would have had to place two disconnects outside and a 4-wire to each panel.

 

[ptonsparky]

Is there a definition of "grouped"? I saw, on another site, where there was an existing 200A service with meter only outside and panel inside, but not back-to-back. The service was upgraded to 400A (320A). The new 400A meter replaced the 200A meter. There were double lugs in the new meter, one to existing panel, and one to a panel that was added inside. Problem I saw was the new panel was 10' from the existing panel. Owner of the house said it was inspected and approved. If this had been in my area, we would have had to place two disconnects outside and a 4-wire to each panel.

Here, too.

 

[augie47]

Must have been a TN inspection (where's my check ?)
I would agree with you and ptonsparky that 10' between them would not be "grouped" but as you point out there is no definition.
Inspectors' discretion

 

[James L]

It's been a long time, but a couple of times I've installed a disconnect outside next meter, feeding a subpanel, and a main breaker panel inside right behind the meter. Definitely not grouped

 

[augie47]

It's been a long time, but a couple of times I've installed a disconnect outside next meter, feeding a subpanel, and a main breaker panel inside right behind the meter. Definitely not grouped

and..definitely not acceptable by any of our inspectors