All questions and answers are based on the 2020 NEC. Q. What is the NEC requirement for securing and supporting PVC conduit? A. PVC conduit must be fastened and supported in accordance with Sec.

Waves in rigid PVC conduit are not the kind of waves you expect to see at the beach, but the lack of expansion fittings and too few conduit clips have caused this conduit run to become a wavy mess.