awg size for 60' underground line from house to shed for 60 amp
I have a shed that is about 50 feet away from the house, and about 60 feet away from the main circuit breaker. Currently UF-B 14/2 with ground underground cable is drawn from the circuit breaker to the shed, while 12/2 is primarily used in the shed.
I'd like a subpanel in my shed for 60 amps. This way I could have a couple 20 amp recepticals for my saws, 15 amps for my lights, and have room for 220v 20amp lines in the shed for my compressor and perhaps a future 220v upgrade of my table saw.
Now I know I can't do that with the current setup.
1) What size awg would I use for the underground wire? Typically I know 60 amps require 6 gauge but does this still apply for 60+ feet? I cant seem to make sense of this issue.
2) does underground cable support higher amp rating than interior cable? I can't make sense as to why the prior owner ran 14/2 underground then in the shed used 12/2 for all the recepticals and lights.
With 14-2 you can only have a 15a breaker, doesn't matter if its UF
For 60a use #6 TWHN in conduit
So if I understand you right, you are saying to buy the following:
50' #6 black
50' #6 red
50' #6 white
50' #6 green
Fit all into one conduit (again, what size is appropriate?), then feed conduit from circuit breaker to sub-panel.
You don't need the red, it can be black with red tape to mark it
Neutral must be white, #6
Green can actually be #10
If it is a straight run withoput any bends & twists I could use 1" grey electric PVC
I had 4 bends & still used 1" for my feed
Detached structure you also need (2) 8' ground rods
Neutrals & grounds not bonded together at the sub
Neutral bar not grounded to the case
I used a 100a 20 space main breaker panel as my sub & fed it with a 60a 240v breaker in the main panel
Search "Sub Panels" "wire shed" "garage" ect..... in the search function of this forum. This is by far the most commonly asked question.
|All times are GMT -5. The time now is 12:53 PM.|
Copyright © 2003-2014 Escalate Media LP. All Rights Reserved