Feed to Garage

[klkruser]

The previous home owner ran a 1.25" conduit from the Main house panel 150 feet to a small barn type shed, but it was never finished or hooked up and contains 3 #6AWG wires in it. I plan to pull out the #6 and replace it with #2, however as the conduit comes up about 25 feet from where the new Garage is going.

General code wise, can I just put in a plastic weatherproof JB and loop it back down to a new conduit feeding the New structure? I would rather not have to dig it up and sleeve on a new length to the new garage.

Also, how much is 4 wire #2 worth a foot? I was at HD and they wanted about 4-5 bucks a foot for EACH wire!! ($18+ per meter) Sounds like robbery.

 

[Aceman]

So you have a conduit running underground to a shed?

Then you have a conduit running underground from the shed to a garage?

Then you want to stub them both up out of the ground in one spot and hit a junction box?

Why not ditch the j-box and simply couple the pipes together underground and pull straight through from the house to the garage? Bypass the shed altogether?

If you want to complain about wire price, buy some 500mcm copper. Our price is between 10-11 dollars/foot. When I finish wiring something up with 500, I usually have at least 200 dollars just in scrap!

Price out some aluminum instead. Do a search for "mobile home feeder" on this site to get more info.

 

[Falcon67]

Best check with a supply house - my neighbor works for Big States and says he can beat HD/etc on anything but romex.

 

[klkruser]

I managed yesterday to borrow a Ditch Witch (coming tomorrow) from a buddy so I have decided to dig it up and sleeve on to it full run.

I also scored a free Genie Lift from a subcontractor of mine for a month so lighting up 15 feet will be a breeze!

I'll check in to Aluminum, did not want to go that route but if considerably cheaper I will. Use the saved money to fill the beer fridge

 

[67restoproj]

Nedco on Duncan way in Langley is where I bought my Tech wire. HD is a rip off.

 

[79firebird]

klkruser seen as you are in bc go with teck cable way cheaper and can be direct biried. Thats what i have ran to a fue of my buddys shops. as well as my work thats what we used to supply a 400 amp panel at the back of the shop was almost 1/2 the cost. Yes it passed code every time.

 

[67restoproj]

If you can go 200 amp(not sure guage) that way if you ever want more power you dont have to pull up the wire....

 

[dlc]

Bought 100 amp quad (aluminum) cable last week for my new garage for $1.13 per foot at my local supplier. Lowes wanted $1.73 per foot for the same wire.

 

[ddawg16]

HD and Lowes seem to have good prices on romex and the 250' roles of THHN.....but when you start pulling the custom lengths off their rack....it gets real expensive.

 

[pattenp]

Bought 100 amp quad (aluminum) cable last week for my new garage for $1.13 per foot at my local supplier. Lowes wanted $1.73 per foot for the same wire.

Was the gauge of that 100 amp aluminum #2? If so then you are limited to 75 amps. A lot of times people will say #2 Alum is 100 amp but as a feeder to your garage it only can carry a max of 75 amps per NEC. If I'm wrong someone please correct me.

 

[dlc]

Was the gauge of that 100 amp aluminum #2? If so then you are limited to 75 amps. A lot of times people will say #2 Alum is 100 amp but as a feeder to your garage it only can carry a max of 75 amps per NEC. If I'm wrong someone please correct me.

It is #2 and I hope you are wrong

 

[pattenp]

It is #2 and I hope you are wrong

I tried to find the code section but I can’t find it. I don’t know if is was changed in the 08’ or the 11’ code. What I recall is that the change states to use the 60C column on table 310.15(b) for feeders such as serving a sub panel in a garage. Based on the 60C column the amp capacity for #2 alum would be 75 amps. I think this code restriction does not apply when using #2 as service entrance and that is where I believe 100 amps is ok. I hope someone with better knowledge of this will jump in.

Sorry to get this post off track.

 

[Aceman]

It is #2 and I hope you are wrong

Is it #2 SER, it has an overall gray outer sheath?

Or is it #2 quadplex(mobile home feeder) with no outer sheath, just wires twisted up together?

Does it run underground?

 

[dlc]

Is it #2 SER, it has an overall gray outer sheath?

Or is it #2 quadplex(mobile home feeder) with no outer sheath, just wires twisted up together?

Does it run underground?

This:
#2 quadplex(mobile home feeder) with no outer sheath, just wires twisted up together?

It does run underground.

 

[Aceman]

It needs to be breakered at 90 then.

 

[Norcal]

SER needs to be sized in the 60 degree column in the 2008 & later NEC.