220 ft run for 100 AMP service

[mike93lx]

600v is just another capcity data point. just copied/pasted from a catalog.

will breaker at 80 amps most likely.

Its not relevant. Discussing it just causes confusion.

You will be code compliant breakering it at 80a, but if you ever draw that much, your voltage drop could cause issues

 

[sparky 1971]

I doubt there would ever be a problem with #2 MHF, but if it's a concern, and since this is Garage Journal, and it will help everyone sleep better at night, there is always 2/0-2/0-1-4 MHF. Or get dual rated 1/0 URD and throw a #4 USE in for the ground. Or run PVC and use XHHW or THWN-2

For what it's worth, my shop is fed from 175' of 2-2-4-6 MHF and I didn't think twice about it.

 

[NWOhioChevyGuy]

Service panel at existing garage panel is a “pass thru”. I Had an electrician help me with that design/upgrade years ago with plans to feed shop once built.

I don’t have the shop completely planned but do have the panel already. Was purchased when he helped me plan things.

I will have to look once I’m home - on the road for work now.

 

[Innovate1]

what amperage are you planning?

how are you going to land it at the shop? a 'lugged' main panel and then feed a regular breaker panel?

You want a panel in the shop with a main breaker unless you have less than 6 breakers and that's very unlikely with the amps you are talking about. Panels with a main aren't much more and don't limit your options. No reason to have two panels in the shop unless it is HUGE or maybe expansion of an existing panel.

 

[mm08822]

I've also seen main cb panels cheaper than the same size main lug panels.

 

[runit]

I doubt there would ever be a problem with #2 MHF, but if it's a concern, and since this is Garage Journal, and it will help everyone sleep better at night, there is always 2/0-2/0-1-4 MHF. Or get dual rated 1/0 URD and throw a #4 USE in for the ground. Or run PVC and use XHHW or THWN-2

For what it's worth, my shop is fed from 175' of 2-2-4-6 MHF and I didn't think twice about it.

I'm talking about 2/0 MHF direct bury for 80-100 amps at 200 ft (more like 170 ft, but round up)

 

[sparky 1971]

I'm talking about 2/0 MHF direct bury for 80-100 amps at 200 ft (more like 170 ft, but round up)

I know that. It doesn't change what I said about 2-2-2-4 probably being ok. How often are you going to be drawing more than 30? Not very often. 50? Even less, if ever. Mine was running on a 60 at 175 feet until the stars lined up and the 60 tripped when my wife's idiot kid plugged his camper into my shop and was using the AC while I was using the plasma cutter and the compressor started. I stuck a 100 amp breaker in it to get by until that little ******* left. I haven't gotten around to swapping the 60 back in yet. It may never happen. Voltage drop depends on more than distance alone. Voltage and current play just as large a part. The more current being used, not what is available, the greater the voltage drop.