How far must trade size 1 PVC conduit be securely fastened from each junction box?

The requirement for securing trade size 1 PVC conduit in relation to junction boxes is defined by electrical installation codes. Specific distances are set to ensure the integrity of the conduit system and to avoid stress or damage to the conduits and connections.

In this case, securely fastening the conduit 3 feet from each junction box is noted as the standard practice. This distance helps to allow for the proper bending radius of the conduit and ensures that the physical changes in direction or connection do not place undue strain on the junction boxes or insulated conductors inside. Additionally, this spacing aids in maintenance and allows for flexibility in the system, making it easier to service or replace components as needed.

This specific distance of 3 feet reflects guidelines often found in established code standards, such as the National Electrical Code (NEC), which is designed to promote safety, functionality, and longevity of electrical installations.