Does 6 Gauge Wire Need To Be In Conduit. The smaller the awg number, the larger the wire diameter. I’d like to run 4 gauge wire in case i add more load (like a welder) but perhaps 6 gauge is enough.
You do not want to put cables in conduit. If you mean individual wires they must always be run in conduit. The minimum size you can use is 3/4 conduit.
What size conduit for 6/3 wire? You do not want to put cables in conduit. 8 rows the amount of wire fill inside any electrical conduit does not imply how many wires.
But in conduit you can run thhn or xhhw wires at a higher temperature, so you can get away with 50a on #8 copper or #6 aluminum. You could also stay with the 70a thing if your hot tub subpanel provides 50a protection. Cable in any conduit , including pvc, that is buried at this depth is not in danger of being severed or disturbed by normal digging.
I’d like to run a jacketed 3 wire cable (4wire with ground wire) but perhaps three individual wires (two black, one white) would be fine. I have always been led to believe that single strand wire needs to be run in conduit and may not be run inside the walls of a home or building. Just make sure it's not where something will hit it and damage the insulation.
Personally i think conduit in the attic is a bit overkill although it actually would save me money (at the expense of my time). The allowable number of wires that can be placed inside a conduit varies according to the type and size of the conduit and also on the size of the conducting wires. If that's the case and you want to add another circuit from the panel, you would have to install a conduit from the panel up into a wall cavity before abandoning the conduit run.
If the garage is not attached you can run 6/3 nm inside to a junction box, then conduit from there to the garage. Use individual conductors (wires) in conduit. It’s important that you follow national electrical code (nec) rules when running an indoor wire through a conduit outdoors.
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