I need to transition between SER in the house to a conduit run of XHHW-2. I intend to do it with terminal blocks in a 10x10x4 metal junction box set in the exterior wall of my attached garage with the access panel facing the inside of the garage. Planning on bringing the SER down through the top...
@pattenp
Yes, that is how I have it laid out. Was just wondering about the "usual" lug location for the subpanel feeder neutral and ground. Put it anywhere on those bars in the main panel, or next to the "input" lines, etc.
This is a link to the main panel that is in the house. You can see the layout of the neutral and ground bars. It is a main lug load center and the main and neutral are not bonded in the panel. They are bonded in the main disconnect right by the meter. I am intending to add a new oversized lug to...
I am installing a 100 amp subpanel in an unattached structure (other thread here that I got some guidance about that on). I want to make sure I am on the right tract for the neutral and ground attachment in the main panel where the 100 amp breaker will be. I plan to attach the 1/0 neutral (for...
Concrete is already done and the building erected, but it wasn't an option anyway, as I chose to have plastic installed before the pour to minimize sweating.
And just to make sure I'm not completely off target. I am thinking to use a pair of these in the work box to splice the two types of wire. Would these be acceptable?
https://www.grainger.com/product/BUSSMANN-Miniature-Distribution-Block-1EF56
I have never measured the attic temps, but we occasionally get a string of +100° days here. I would guess that puts the attic at least at 135°. It is only $25 more to go with 1/0 for H/H/N so I will probably just go with that, at least for the attic part. I guess I could step down to the #1 for...
Ok, thank you for the reply, but it does bring a couple of questions to mind.
#1 No need to use the larger conductor due to the high heat in attic?
#2 Why 2 ground rods? I thought only one additional one was needed at the subpanel location. (There is already one at the main disconnect.)
And to...
I think I have gathered enough information from browsing these and other forums to do this correctly but just want to bounce it off the collective knowledge of those here. I would like to install a 100 amp subpanel in my detached shop building. Here is what I have come up with, I will list the...