Pull Box

Definition

A pull box is a box, in electrical work, placed in a length of conduit through which cables can be pulled.

Purpose

The purpose of a pull box is to provide access points within a conduit system, facilitating the installation and maintenance of electrical cables by allowing them to be pulled through long or complex conduit runs.

Examples of Use

• In large commercial buildings, pull boxes are installed at intervals to aid in the installation of extensive electrical wiring systems.
• Pull boxes are used in underground electrical conduit systems to simplify cable routing and maintenance.
• Residential construction may use pull boxes to manage wiring in complex layouts, ensuring easy access for future modifications.

Related Terms

• Junction Box: A box that houses electrical connections, allowing for the safe distribution of electrical circuits.
• Conduit: A protective tube through which electrical cables are run.
• Electrical Raceway: A channel designed to hold wires, cables, or busbars.

Notes

Proper placement and sizing of pull boxes are critical to ensure compliance with electrical codes and to facilitate the efficient installation and maintenance of electrical systems.