What type of conduit body is represented in the given diagram at IV?

The type of conduit body represented at IV is identified as an LB (LB Conduit Body) because it features a design that allows for both a change in direction of the conduit run as well as providing access for pulling wires or making connections.

In an LB conduit body, one side has an entrance for the conduit to enter, while the other side provides a 90-degree bend to accommodate the change in direction of the conduit. This configuration is vital for installation situations where it is necessary to change the pathway of the conduits—be it for additional wiring, junctions, or facilitating maintenance.

The LB conduit body also features a cover that can be opened, allowing easy access for future changes or repairs without needing to disassemble the entire conduit system. This accessibility enhances the efficiency of the electrical installations by simplifying the processes related to maintenance and updates.

An understanding of how an LB conduit body functions in various installation scenarios is essential for electrical contractors, as it directly impacts the safety, accessibility, and integrity of electrical systems.