Q. What are the Code rules for field bends made in a run of PVC conduit?
See the answer below.
A. Raceway bends aren’t permitted to be made in any manner that would damage the raceway, or significantly change its internal diameter (no kinks). Field bends must be made only with identified equipment. The radius of the curve of the inner edge of any field bend isn’t permitted to be less than shown in Chapter 9, Table 2 [Sec. 352.24].
Be sure to use equipment designed for heating the nonmetallic raceway so it’s pliable for bending (e.g., a “hot box”). Don’t use open-flame torches.
To reduce the stress and friction on conductor insulation, the total amount of bends (including offsets) between pull points must not exceed 360° [Sec. 352.26].
These materials are provided to us by Mike Holt Enterprises in Leesburg, Fla. To view Code training materials provided by this company, visit www.mikeholt.com/code.
