I'm running 1 1/2" underground gray colored rigid nonmetallic conduit to supply a subpanel for a workshop. My question is do I use pvc glue like you would for pvc piping to join the sections ???
Do I use the glue in the bell sections as well where I would need couplings ??
Thanks, Ray
Yes.
Yes.
Yes and yes. Use the (usually purple) primer to clean and the proper glue (solvent) to join wherever needed.
Paul
I use a grey pvc cement. It is basically the same chemical solvent soup as pvc cement for plumbing fittings, but instead of being transparent is an opaque grey, supposedly from dissolved solids - bits of grey pvc plastic.
Why do I use this instead of plumbing pvc glue? Because the electrical inspector told me to.
Glue everything and let it sit overnight unless you want leaks. Also: XHHW cable is better than THHN or THHW for service in the damp environ that is underground conduit. Unless you seal the above-ground entrances to the conduit moisture will condense out of the air that diffuses into the cooler underground conduit.
Thanks to all who replied..... Ray
Have something to add? Share your thoughts — no account required.
Ask the community — no account required