What size conduit did you run? I was thinking of using 1" sch 40 but have been have recently been thinking of going to a 2" conduit with pull boxes in the warming room and at the base of the pier.
I actually have three conduits at my pier:
I think one is 3/4" for 120VAC. It comes through the slab next to my pier and into a single gang box with a duplex outlet. I use it for a clock and an occasional hair dryer. I don't get dew often, so I don't use my hair dryer often.
I think one is 3/4" or 1" for 12VDC. That one comes from the west wall where my power supply is, under the slab and then up through my pier. It comes out the side of my pier and I've got a small plastic project box mounted with masonry screws to my pier. The cover of the project box has four locking XLR connectors for power to my mount and scope fans. I don't have a use at this time for the other two connectors as I don't use my scope's dew heater (no need).
The last conduit I'm pretty sure is 2". It runs from my chart table in the south-east corner, under the slab, through the pier and out the side. I fixed a slightly smaller plastic project box to my pier for this conduit. My though was with a conduit that big I'd be able to pull a data cable with a DB connector if I had to (I was using Gemini I at the time, and I might again).
I used conduit "sweeps" for all the conduits so I shouldn't have any trouble running a fish tape through them if I have to replace wiring or run a new wire at some time in the future.
You can see the air conditioning grating I use to hide my power supplies at the left of this photo. The power supplies are mounted on a board inside the wall. The A/C grate provides access, allows ventilation, and a bit of concealment.
Here you can see the 120VAC outlet and the project boxes on my pier. Right at the base of that rolling desk chair is where I can get access to my 2" data cable conduit. It's the "blank" box cover nearest the corner. Seen "edge on", like M104.
More photos are here: https://www.cloudyni...hl= poorly lit
Edited by macdonjh, 21 September 2020 - 02:13 PM.