I found this "junction box" on a job recently. Among the items to note:
-An extension ring is used in place of a box; -the 'conduit' is not continuous with wherever the wires go out the back of the ring; -the EMT is installed without using a connector; -unprotected wires enter the box; and, -no attempt has been made to anchor any of the raceways.
That looks like exterior house siding. I don't think this install will be any good for outdoor weather. Knocking a big gaping hole in the siding is also a bad move; rain water can get inside the house and cause rot and such.
#120227 - 04/03/0504:01 PMRe: Unorthodox Use of Extension Ring
- The box is mounted on what once was an exterior wall, but is now enclosed by an addition to the original building; and,
- The box / extension ring is in fact a listed, factory made product. It is intended to attach to a single-gang box, be it a "handy box," or cut-in (old work) box. Finally,
- While not clear in the pic, the 'ring' is NOT attached to a box behind it; it is attached directly to the building. While there is other raceway on the other side of the wall, it does not directly connect to this ring.
I am truly amazed as to how many violations can be put in such a small area.