What is the purpose of a pull box in conduit systems?

The purpose of a pull box in conduit systems is fundamentally about providing access for pulling or splicing wires and cables. Pull boxes are designed to ease the process of installing and maintaining electrical conductors. They serve as an accessible junction point where wires can be pulled through, allowing for changes in direction or splicing to take place without the need to remove an entire section of conduit. This is particularly important in lengthy runs of conduit where pulling wires can be challenging; the presence of a pull box simplifies the process by giving workers a space to maneuver and manage the cables more effectively.

Additionally, pull boxes help maintain the integrity of the conduit system by preventing undue strain on the wires and ensuring that the wiring can be done efficiently without damaging the conductors. This function is crucial for ensuring that the overall installation meets safety and performance standards in electrical systems.