Reapiring existing wireing to detached garage

[mikeygstl]

Yes, I am not an electrician by trade - just an engineer.

I've got an old (circa 1903) detached garage off an older home. nothing but concrete between the two. The garage has a single light and a garage door opener in it off an old 15 amp circuit. I can't tell what type of wire is inside the 3/4" conduit and weatherheads, but whatever it was evidently was not weather or UV resistant, as the insulation between the weatherhead and the newer feeder wire is gone - the previous owner appears to have wrapped it in some sort of friction tape. In the breaker box it is a cloth/rubber covered wire. I havene't started to investigate the garage side as it is frigid here right now.

I was going to simply pull some THWN-2 up through the existing 3/4" conduit, out the weatherhead, and to the newer triplex, adding a ground in the process, reversing the same procedure at the garage side, adding a disconnect switch, but I then run into the same UV problem.

Does anyone know of a 14 gauge (or 12 or 10) stranded wire that can be used which would be weather resistant as well as sunlight resistant? I would love to bury this thing (and really upgrade to 240 with a subpanel) but replacing concrete isn't in the budget right now.

Thanks in advance from a non-professional.

 

[Dennis Alwon]

I see that Southwire only makes sunlight resistant in sizes larger than 2 awg and larger-- that being said



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.

A reminder to all members, if you see a questionable post, feel free to report it by clicking the

button at the bottom left corner of the post.

 

[charlie b]

I will briefly reopen this thread only long enough to mention that engineers are certainly welcome to participate in this forum. I have been a member for over a decade, and I have learned a great deal from the other members. However, engineers are not electricians, at least not as a general rule. So we are not allowed to seek information related to performing our own installation work.

So with that said, welcome to the forum, and please keep your questions related to the work you do at the office (and not the work you want to do at home).