Apartment Building Metering question

[Designer69]

I'm working on the design of a 16 unit apt. building and would appreciate some help. A few questions;

1) Best way to split the feed to the house CB/Mtr. Run second set of conductors from main transformer or feed thru from Main CB.
2) Keep the Main CB as shown or remove it completely if not necessary?
3) This equip. is on the outside wall. On the inside wall, do you need any terminal boxes or panels for the dwelling unit meters or just straight home run to dwelling unit load center?



Appreciate your help.

 

[Designer69]

I figured out 1 & 2. You need the main CB per NEC since there's more than 6 discs./meters. and you feed the house meter/disc. from the main CB since these Eaton modules are setup with bus bars that connect between them.

This only leaves question 3 I'm not sure about, how are the outside meter banks wired to inside the building (basement) and from there are there any additional terminal boxes/panels used or just straight runs the the dwelling unit loadcenters?


Thanks

 

[david luchini]

are there any additional terminal boxes/panels used or just straight runs the the dwelling unit loadcenters?

Straight runs to the dwelling unit loadcenters would be fine.

 

[petersonra]

Straight runs to the dwelling unit loadcenters would be fine.

It seems to me like he is coming back inside the building with a tap. I don't see how he can run that all the way to the individual units.

 

[electrofelon]

It seems to me like he is coming back inside the building with a tap. I don't see how he can run that all the way to the individual units.

I assume there is a disco for each meter.

 

[petersonra]

I assume there is a disco for each meter.

That would make sense

 

[kwired]

I figured out 1 & 2. You need the main CB per NEC since there's more than 6 discs./meters. and you feed the house meter/disc. from the main CB since these Eaton modules are setup with bus bars that connect between them.

This only leaves question 3 I'm not sure about, how are the outside meter banks wired to inside the building (basement) and from there are there any additional terminal boxes/panels used or just straight runs the the dwelling unit loadcenters?


Thanks

If house load exceeds capacity of the main, you would possibly set up a second main disconnect, otherwise most cases you would just extend the meter center to another module.

Straight runs to loadcenters is fine. Pull boxes or aux gutters are sometimes used to make it easier to get things into the meter center though, but this is for convenience or even appearance more than it is a necessity.