SER to shop

lcjay · 03-13-2011, 05:59 PM

I just built my shop and have 100amp sub in it. I am running 110ft of 1/0 SER out of main panel to a junction box on the other side of my house outside. Switching to URD adding #6 green copper ground, going 2ft underground and going another 20ft to shop.

I know I need seperate ground rods and seperate the grounds and neutrals in pannel. My quetion is can I run SER in a short peice of 1.5 inch pvc to the junction box where the switch to URD will be made.

SER to go in attic, out a bird block, LB down to J box. I have done this before and was told that SER cannot be run in pipe. But was allowed to remain. Not sure of another way to do it unless I make the junction box up in the attic so SER wont be in pipe at all.

Just some advice would be great

Saturday Cowboy · 03-13-2011, 11:28 PM

Why did they tell you ser could not be run in pipe???!!?

IMO the cable going out of the jbox down to the ground should also be in conduit to protect it from the sun and idiots.

oleguy74 · 03-14-2011, 12:22 AM

nec 2008:338.12 no se,ser burried or in conduit.if you go with USE you will be ok...

Saturday Cowboy · 03-14-2011, 01:23 AM

He's not trying to bury it just wants to come down the outside of the house.
nec 2008:338.12 does not say anything about no being able to sleeve it in conduit.(it does however say no bury)

oleguy74 · 03-14-2011, 02:07 AM

i see urd for bury.but if it was me,i would make it use all the way with no splices if possible.230.50a addresses protection.needed to put that in eariler...