Cheapest feeder for shed panel

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Freshta

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Raleigh, NC
Hey everyone,

A buddy wants to hook up a 10x10 shed about 80 feet total run (50 feet in crawl space, 20 underground, 10 up to subpanel ) from his double wide. Shed will have a piece of machinery with a NP rating of 55 amps. I figured on a 100 amp sub panel fed by 80-90 amps to allow a couple outlets and a light. Main panel is 200 amps. I'm an EC but I deal mainly with industrial controls and commercial work. I'm sure someone here does this all the time and can probably let me know real quickly which wire, cable, wire/cable/conduit combo is cheapest for this application. Any help will be appreciated. I'm just trying to help the guy save a few $$$.

Tony
 
IMO your choices for on the cheap are direct burial cable or PVC with aluminum conductors. I would opt for the latter. You can use a 100 amp panel with a main and drive two ground rods for the GES. You can't get much cheaper than PVC and AL conductors.
 
infinity said:
Since he has 10' exposed on one end, 20' in the ground and 50' in the crawl space IMO it's not worth the bother to use any direct burial cable for his run.
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But the cable in question is likely still less/about same cost then other options even if running raceway the entire distance.

I just had supply house guy price me difference the other day between 1/0-1/0-2 URD cable vs #1 AWG XHHW x 3 lengths. Was going to be in raceway regardless and there was no #1 AWG to offer in a triplex assembly. Cost difference was only maybe 5 cents per foot difference and this was only going to be about a 120 foot run. Went with the URD because it is one assembly instead of three individual items to handle come time to pull. (The URD was comprised of conductors with USE as well as RHW/RHH markings on them, so it is allowed to enter buildings)
 
PVC and AL is how I do 99% of jobs like this. :thumbsup: As to whether I would use URD or individual conductors, it all depends. Lately the URD has been a great choice - cheap, it's already assembled and phase marked, and pulls easily.
 
Freshta said:
Hey everyone,

A buddy wants to hook up a 10x10 shed about 80 feet total run (50 feet in crawl space, 20 underground, 10 up to subpanel ) from his double wide. Shed will have a piece of machinery with a NP rating of 55 amps. I figured on a 100 amp sub panel fed by 80-90 amps to allow a couple outlets and a light. Main panel is 200 amps. I'm an EC but I deal mainly with industrial controls and commercial work. I'm sure someone here does this all the time and can probably let me know real quickly which wire, cable, wire/cable/conduit combo is cheapest for this application. Any help will be appreciated. I'm just trying to help the guy save a few $$$.

Tony
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If you give him an 100A sub-panel, just run a 1 1/2’ or even 2’ PVC with #1 x3 XHHW with a #6 ground AL
 
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