solarken
NABCEP PVIP
- Location
- Hudson, OH, USA
- Occupation
- Solar Design and Installation Professional
This is a common situation for me with buried PVC conduit from yard coming to house, rising thru elbow thru expansion fitting and into a metal LB where I transition to metallic conduit for entry in the house. The LB has PVC downward from the buried conduit, and a 6 inch rigid nipple horizontally thru the siding and rim joist into the basement ceiling cavity. Securing the LB from the outside is a bit clunky: The expansion coupling gets in the way, there is not a lot of room above it for the clamp, there is the siding to block/concrete foundation transition there, and the PVC is flexible so it moves quite a bit when pulling wire. On the inside, there is the nipple extending thru the middle of a typical 2x12 rim joist into a joist cavity. It is easiest to use a short piece of FMC to transition from the rigid to EMT and then onto the equipment, so the FMC provides no support. Does anyone make a clamp that can secure Rigid that penetrates 2x lumber at 90 degree angle? Usually it is 3/4 or 1 inch.