Trade size 3/4 Schedule 40 PVC conduit shall be supported at a minimum of every ___ feet.

Trade size 3/4 Schedule 40 PVC conduit shall be supported at a minimum of every ___ feet.

• A. 5
• B. 6
• C. 3
• D. 10

Answer: (C)

Spacing for nonmetallic conduit is governed by the need to keep the raceway secure and prevent movement that could stress connections. For trade size 3/4 inch Schedule 40 PVC conduit, supports must be placed so the distance between them does not exceed three feet, and the conduit must be fastened within three feet of every box, cabinet, or fitting. This closer spacing helps compensate for PVC’s flexibility, protecting joints and maintaining proper alignment. Distances like five, six, or ten feet would exceed the allowed span and aren’t permitted.

Spacing for nonmetallic conduit is governed by the need to keep the raceway secure and prevent movement that could stress connections. For trade size 3/4 inch Schedule 40 PVC conduit, supports must be placed so the distance between them does not exceed three feet, and the conduit must be fastened within three feet of every box, cabinet, or fitting. This closer spacing helps compensate for PVC’s flexibility, protecting joints and maintaining proper alignment. Distances like five, six, or ten feet would exceed the allowed span and aren’t permitted.