eeprom
Electrical
- May 16, 2007
- 482
Hello,
I have been working on a project which requires PVC coated rigid conduit for all underground wiring. In the past I have used PVC conduit encased in concrete, with steel risers. I was told that PVC was not desirable because in very cold temperatures, the ground will shift and the PVC will break. The frost line is about 5' down and the PVC is installed at 36".
I have been contacting PVC manufacturers in order to discuss this possible problem. No one I have contacted seems to know anything about this. Does anyone in this forum have any experience or literature which would justify the use of PVC coated rigid underground?
thanks,
EE
I have been working on a project which requires PVC coated rigid conduit for all underground wiring. In the past I have used PVC conduit encased in concrete, with steel risers. I was told that PVC was not desirable because in very cold temperatures, the ground will shift and the PVC will break. The frost line is about 5' down and the PVC is installed at 36".
I have been contacting PVC manufacturers in order to discuss this possible problem. No one I have contacted seems to know anything about this. Does anyone in this forum have any experience or literature which would justify the use of PVC coated rigid underground?
thanks,
EE