![]() ![]() That stuff is good for 115 amps, so it'll run everything you'll ever need, with headroom for a wood shop, hot tub, pool, 100A of EV charging, whatever you might want. Needs are for a basic basic light charger, and for deluxe multiple-vehicle charging using Share2 technology. Home buyers are paying thousands more for houses that are wired up and ready to go for electric vehicle charging. If it's aluminum, it's the right stuff for feeder, but way, way too large for your nee. Trade it for a more appropriate wire! Use of copper for such a large feeder is wasteful and foolish, even if it's free! Wasteful fools are rich, so take their money, buy what you need and a really nice subpanel too, and a couple of pizzas. If this is copper wire, it's worth a king's ransom. You cannot (since 40-50 years ago) run only 3 wires for a subpanel. If buying wire you would use a smaller size for ground, but if you have free wire available, might as well use that. ![]() The conduit must be completely assembled and backfilled before pulling the wires in. Get some "Buried Electrical Line Below" marking tape as well, and put it in the top part of the trench when refilling. That needs to be buried with 18" (or more) of soil over the top of the conduit. You will need, for instance, 2" schedule 80 PVC to run the four 1/0 THWN-2 wires in. ![]() Free wire should make buying the conduit to put it in fairly affordable. The wire MUST be in conduit - it is not rated to be used exposed, either interior or outside/buried. The oversized wire will be good to have in case you or a future buyer of your house ever wants to put an electric vehicle charger or more of a shop in the garage, for instance. In comments you have clarified that you have access to free wire, and minimal planned loads at present. The parts inside the buildings need to be in conduit, at least. That can be direct buried (24" soil above, minimum) or run in conduit the whole way. #2 (2-2-2-4) aluminum "mobile home feeder" which can do 90 amps and tends to be attractively priced. using 4/0 aluminum and larger conduit to run up to 180 amps - either of which seems dubious with a 200 amp main at the house that feeds it.ĭepending what your "standard stuff" is, there might be less expensive ways to get it done at only slightly lower amperage, i.e. Unless of course you were planning to waste far more money than makes any sense on copper 1/0, in which case 150 amps, but at a huge waste of money. If you install conduit for it to run in, correctly (depth of burial depends on type of conduit and whether it's driven over or not, among other things) and you are content with 120 amps (or less) to the Garage (breaker size feeding it at the house end - garage panel can be 200 Amps) sure. ![]()
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