tyha
Senior Member
- Location
- central nc
does the conduit in a dentist office going btween the wall and the center console for equipment need to be rigid if its under slab
does the conduit in a dentist office going btween the wall and the center console for equipment need to be rigid if its under slab
RMC/IMC doesn't last long underground here either, even when it's pipe wrapped.
IMO the inside of the PVC would be a wet location which would prohibit the use of AC cable.
If the PVC went "under" the slab I would agree....But if the PVC is "in" the slab and the slab is inside the building, How could it be considered a wet location?
Location, Wet. Installations underground or in concrete slabs or masonry in direct contact with the earth; in locations subject to saturation with water or other liquids, such as vehicle washing areas; and in unprotected locations exposed to weather.
Even a conduit within the concrete would be a wet location if that concrete was in direct contact with the earth. I agree that a conduit in a slab on a floor that is not in contact with the earth wouldn't be a wet location.
I agree with this and if I had my book I would give you the code article.
Location, Wet. Installations underground or in concrete slabs or masonry in direct contact with the earth; in locations subject to saturation with water or other liquids, such as vehicle washing areas; and in unprotected locations exposed to weather.
I had one where the EC ran RMC in slab and stubbed up below chair. The EC pulled HCF MC should a bond bushing be installed on the RMC stub up below the chair? Yes the MC was pvc coated.
Here is the definition of wet location:
Chris
OK....But what is between the concrete and "earth" 90% of the time? (at least in my area of the country) Pea Gravel and Visqueen...So is the concrete in "DIRECT CONTACT" with the earth? IMO no. Around here (Ohio) I very rarely see concrete poured directly on dirt.