8-2 UF or 3x THHN for buried Sched. 40 PVC conduit?

[VanGoghComplex]

A previous resident in my home ran 110 from my basement subpanel out to a little outbuilding on the property. Among many other things they did wrong, the wire is undersized and of the wrong type.

The buried conduit it 1-1/4" schedule 40 PVC. Would I be better off pulling 8-2 UF wire, (2) #8 THHN and (1) #10 THHN? (It'll be on a 40-amp GFCI breaker.)

 

[jumper]

I am closing this thread, in accordance with the Forum rules. This Forum is intended to assist professional electricians, inspectors, engineers, and other members of the electrical industry in the performance of their job-related tasks. However, if you are not an electrician or an electrical contractor, then we are not permitted to help you perform your own electrical installation work.


If I have misjudged the situation, if for example this project is related to your work, then send me a Private Message. If you can show me that I am wrong, and that you are a licensed electrician (or at least a licensed apprentice), then I will reopen your post, and offer an apology for the delay and inconvenience.