I am in the process of upgrading my electrical service and I'm running into a few issues. Advice? Thanks!
Note: I am doing the work and I am learning a huge amount. I am going to have all work checked and service moved by a licensed electrician before inspection. I'm in the spirit of DIY but not at the expense of safety.
Background
There are two large junction boxes attic connected to the sub distribution panel with 3x3/4" conduit runs. I'm using #12 as I was given quite a bit of wire even though all but one circuit will be 15a.
My problem:
I have 12 circuits currently, 4 as existing 'boats' leaving me with 22 conductors. -2 for the multiwire circuit grounded conductors. I need to figure out a way to run as little conduit as possible into the attic.
Primary Issues:
1. Derating:
In addition to the number of conductors, I have to derate according to ambient attic temp. I have a fan in the attic but it is a good 90 degrees on most warm days.
2. Adding Circuits
I will need to add circuits for a kitchen remodel and a bathroom.
I'm thinking at least 10 circuits plus a few for contingency totaling 40 conductors to fanangle into the attic.
3. Sub Panel Positioning
The panel is a NEMA 3R and I'm semi flush mounting it. Knockouts are only through the bottom and there is a fireplace behind it. I have to go through two studs and up through a 2x top plate to get into the attic. I have three 3/4 runs so far. I can swiss cheese the studs but its not ideal. I also only have three more knockouts that will be behind the stucco after restuccoing.
This is the sub panel that will be the distribution panel for the house. Try not to laugh at the poor placement. I actually was given only one choice of placement by code.
Note: I am doing the work and I am learning a huge amount. I am going to have all work checked and service moved by a licensed electrician before inspection. I'm in the spirit of DIY but not at the expense of safety.
Background
There are two large junction boxes attic connected to the sub distribution panel with 3x3/4" conduit runs. I'm using #12 as I was given quite a bit of wire even though all but one circuit will be 15a.
My problem:
I have 12 circuits currently, 4 as existing 'boats' leaving me with 22 conductors. -2 for the multiwire circuit grounded conductors. I need to figure out a way to run as little conduit as possible into the attic.
Primary Issues:
1. Derating:
In addition to the number of conductors, I have to derate according to ambient attic temp. I have a fan in the attic but it is a good 90 degrees on most warm days.
2. Adding Circuits
I will need to add circuits for a kitchen remodel and a bathroom.
I'm thinking at least 10 circuits plus a few for contingency totaling 40 conductors to fanangle into the attic.
3. Sub Panel Positioning
The panel is a NEMA 3R and I'm semi flush mounting it. Knockouts are only through the bottom and there is a fireplace behind it. I have to go through two studs and up through a 2x top plate to get into the attic. I have three 3/4 runs so far. I can swiss cheese the studs but its not ideal. I also only have three more knockouts that will be behind the stucco after restuccoing.
This is the sub panel that will be the distribution panel for the house. Try not to laugh at the poor placement. I actually was given only one choice of placement by code.