This is similar to wiring an insulated concrete form (ICF) house.
Common practice is to cut a slot for the wire and then use a few dabs of foam to hold it in place.
These reference that I am linking to show a special box, but on also shows using a regular Carlon box (blue). But note the tab on side. That tab will be screwed or nailed to the front of the furing strip.
NM does not need to be protected if it is more than 1 1/4" from a nailing surface (furing strip). Run it several inches from the furring strips and then over to the box.
Also note that these boxes have to be shallow. So, at least in some places, they used a 4 sq box and then put a single gang mud plate on it. That gives you much more space for box fill.
http://www.amvic-pacific.com/Downloads/Tech%20bulletin%20-%20Electrical%20Installation.pdf
http://www.icfelectrical.com/icf_electrical_box.asp |
Member Since
04/26/2005
Total Contributions
3712 Posts
|
Moderated by Handyman 
