New Subpanel Installation - Conduit question

[jesse82nc]

So I will be installing a new flush mounted panel in a wall for an attached garage and laundry room addition. It is a 100A panel with a 90A breaker in it. I plan to feed it from the main panel with 2-2-2-8 Cu NM by routing it through the crawlspace (the main panel is outside and the back already has a knockout into the crawlspace), then into the laundry room where the new subpanel will be located. All walls are 2x6 in the laundry room and garage for reference. I want to use a 2.5" PVC conduit from the crawlspace up inside the wall to the bottom of the panel (the main breaker will be mounted at the bottom of the panel). And then I wanted to use a 2.5" or 3" conduit from the top of the panel to the attic above for the branch circuits. I plan to use mostly 12/2 NM for the branch circuits.

My head is spinning trying to figure out Ch 9 Table 9 as to how many wires I can run within the conduits.

Can anyone answer that question?

 

[Dennis Alwon]

I am closing this thread, in accordance with the Forum rules. This Forum is intended to assist professional electricians, inspectors, engineers, and other members of the electrical industry in the performance of their job-related tasks. However, if you are not an electrician or an electrical contractor, then we are not permitted to help you perform your own electrical installation work.


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