I am building a concrete block wall out of 8x8x16 block. All of the cells of the wall will be concrete grouted and also contain rebar. I have not yet poured the foundation, but will be poring very soon. I would like to run electricity to one place in the wall for an exterior light fixture. I have a good understanding of electricity and wiring so I don't need specifics regarding wire size, etc. My questions are geared more towards the installation materials. Here are my questions:
1. Is 1/2" schedule 40 conduit appropriate to run through the cells of the block prior to filling them with concrete? I would like to 12 gauge wire through them for the light fixture.
2. How deep underground should the conduit pop out of the poured foundation? The underground conduit will run to the house, about 40 feet away.
3. What type of electrical box for the light fixture is appropriate for this type of installation? After I make a cut-out in the concrete for the box, how does the box attach to the inside of the block?
4. Are there any other precautions I must take with this type of installation.
Thank you very much in advance.