Buried Cable & Conduit In Exposed Ceiling

[dholyoak]

1. Outside Buried Cable in Rigid PVC Conduit ? How deep does this type of line need to be buried (when NOT under a sidewalk or driveway)? Most of the answers I am finding on the internet say 18 inches. Does it need to be this deep if the line is CGFI protected? Does it change depending on the Amps of the line? I have two outside lines. One running from a 20Amp circuit through my garden in rigid grey PVC, and another 60 Amp circuit running to a hot tub also CGFI protected. I need to find out if I need these buried deeper before I sell my house and have to go through the hassle of fixing things at that time.
2. 14-2 Gauge Wire - Is Romex 14 gauge wire ever appropriate in a home? Some jurisdictions do not allow 14 gauge wire, but it seems that this would be fine on a dedicated line running from a 15 Amp circuit.
3. Conduit In Unfinished Ceiling - Does a 12 or 14 gauge wire have to be in flexible metal conduit if it is in the exposed ceiling of an unfinished basement?

I am in Washington, DC, and I have no idea how to find out what the local rules are (both electricians I have talked to have given me totally different answers), and the DC government is a mess (I'm scared they will just come in to fine me and tell me my house is unsafe or something).

Thanks a ton!

 

[charlie b]

I am closing this thread, in accordance with the Forum?s rules. This Forum is for professional electricians, inspectors, engineers, and other members of the electrical industry. We are not permitted to provide assistance to a person who is not employed in this industry.

If one of the electricians with whom you have discussed your questions wishes to register with the forum, we can help answer that person's questions.