PVC or EMT
#1
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PVC or EMT
Hi,
I got to run 220 to my new well about 30' from the house. The breaker panel is inside the house. Didn't I read some where that PVC conduit is not allowed when connected to an inside panel? Can cause some kind of gas or something???
thanks, jim
I got to run 220 to my new well about 30' from the house. The breaker panel is inside the house. Didn't I read some where that PVC conduit is not allowed when connected to an inside panel? Can cause some kind of gas or something???
thanks, jim
#2
PVC conduit is acceptable and prefered in this situation. It is much cheaper and easier to work with than EMT. Use schedule 80 PVC for the vertical portions of the run (into and out of the ground) and schedule 40 PVC for the horizontal underground portions of the run. Use THWN (wet) rated conductors in the conduit. The conduit should be buried at least 18".
Last edited by ibpooks; 05-09-06 at 02:55 PM.
#3
Originally Posted by JIMS 71
Didn't I read some where that PVC conduit is not allowed when connected to an inside panel? Can cause some kind of gas or something???
#5
Originally Posted by JIMS 71
Thanks for the clarification, I'm going with that flex type. Water tight, easier to use...jim
#9
No, I believe you are describing Liquidtight Flex which is not suitable for an underground run. You should be using RNC (Rigid Nonmetal Conduit) which is a grey PVC pipe. The RNC comes in two strengths, sch 40 and sch 80. Sch 80 should be used for the vertical run into and out of the ground; sch 40 should be used for the underground horizontal run. Use the pre-made fittings (sweeps, LBs) for PVC conduit.
Liquidtight is for short outdoor connections, such as a disconnect box to an air conditioner.
Liquidtight is for short outdoor connections, such as a disconnect box to an air conditioner.