I'm running 100 AMP service out to a shed/workshop – and while I see a TON of posts floating around about how to do this and all the codes, this isn't my question.
After consulting with a local electrician, I've agreed (and understand) everything BUT one bit – once the THHN 3 gauge wires are pulled on either end to a junction box, and the 3-3-3-5 SER cable meets it in there – how does one connect these things together?
I've seen people suggest copper crush bolts, and others say no. I can see that granger sells a plastic case for these things so it's POSSIBLE they can all be insulated from each other.
I've seen the polaris fittings, but can't seem to find something that supports 3 AWG wire.
Any tips/links/etc? Even if it's just to some additional reading material, that'd be HUGELY helpful!
Best Answer
I recommend the ISR-10 by NSI Industries or equal. They splice and are completely insulated. Pretty much foolproof. You can Google them and you will see what I mean.
http://www.nsiindustries.com/catalog/nsiproducts/polaris%E2%84%A2-mechanical-connectors/polaris%E2%84%A2-black-insulated-connectors/isr-1-0
This might get you there. You can probably buy them online or from a wholesaler or someone like grainger.