I'm running 1/0 3 AL 120' . Would like to splice 1/0 3copper to each end to avoid the tightning probs?

Question

Is it ok to splice like the last 2' with the copper on both ends so I will avoid the expand / shrink and oxidation problems with Aluminum? I realize that this will create more splices and that I will need to put the splices in waterproof direct burial enclosures. I will be running this through SCH 40 2" PVC . I will make the enclosures accessable so that I can retighted the AL lugs as needed. I will be using 1 ought 3 conductor URD on a 125 amp box. Or am I'm going to far and that I should just Tie the AL from house panel to the garage panel and forget the copper?

Ed W · Accepted Answer

Use the Al. and coat the ends with anti oxidizing compound, torque the lugs properly and the connection will last for years

myothernewname · Answer

I'd forget the copper, Just another thing that could go wrong Aluminum Oxide on connection will be good to go.

merkin69@verizon.net · Answer

for the price difference and piece of mind I would go with copper all the way, no worry about oxidization or load on the line .

chechk · Answer

use AL and save the money and effort

I'm running 1/0 3 AL 120' . Would like to splice 1/0 3copper to each end to avoid the tightning probs?

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