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macsierra8
Baby Newfoundland
Premium
join:2003-11-30
Minden, NV
reply to Toddus

Re: 400 amp single phase service wire size residential

Couple things about the 400 amp panel in residential applications planners aren't used to.

I had to modify the plans after approval from a 6 inch wall to a 10 inch wall to accommodate the 400 amp panel for the short distance I needed to mount the panel. Both the architect and county plan check missed that we needed a " firewall around and behind the panel because of the living area upstairs. As the panel by itself is 6 inch wide as the conduit template width shows. That plus some insulation required the 10 inch wall, couple of picts below.




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I was against Obama before it was cool!
Elect anyone BUTT Harry Reid!


nunya
LXI 483
Premium,MVM
join:2000-12-23
O Fallon, MO
kudos:12
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I'm curious about the (I assume Sch 80) conduits coming up in the midst of the foundation. I've never seen this before. Only inside or outside.
Was it done for security or some other reason?
What does the finished product look like? What happens if you need to replace your service equipment?


macsierra8
Baby Newfoundland
Premium
join:2003-11-30
Minden, NV
said by nunya:

I'm curious about the (I assume Sch 80) conduits coming up in the midst of the foundation. I've never seen this before. Only inside or outside.
Was it done for security or some other reason?
What does the finished product look like? What happens if you need to replace your service equipment?
All are sch 80, yes. We do our custom homes like that and especially in the higher snow country around Lake Tahoe. Although there is no code that sez you have to, long as you use sch 80 above ground.

That little room under the stairs and deck is more for sheer load as the structure is 35 feet high and the engineer wanted it so I put it to use and gained some floor space. We have a wind rating here much like Florida with 120 mph wind load + snow load.



--
I was against Obama before it was cool!
Elect anyone BUTT Harry Reid!


whizkid3
Premium,MVM
join:2002-02-21
Queens, NY
kudos:9

1 edit
reply to nunya
said by nunya:

I'm curious about the (I assume Sch 80) conduits coming up in the midst of the foundation. I've never seen this before. Only inside or outside.
Was it done for security or some other reason?
What does the finished product look like? What happens if you need to replace your service equipment?
It is interesting. We run many conduits through slabs, but not foundations or wall footings. We use concrete encased PVC below the slab, transitioning to rigid galvanized steel for elbows and where it comes up through the slab. I assume structural issues have been checked?