What specialty electrical worker might need a 6-foot folding ruler?

A lineman frequently requires a 6-foot folding ruler for various tasks related to their work in the field of electricity distribution and transmission. The ruler is a practical tool for measuring distances, especially when installing or maintaining overhead power lines and equipment. Linemen often work at heights and may need precise measurements for positioning poles, transformers, and other critical components in their installations. The compact design of a folding ruler allows for easy portability, making it suitable for the physical and variable conditions faced by linemen during their operations.

In the context of the other specialties mentioned, while electricians, maintenance workers, and residential installers may use measuring tools, they typically rely on other instruments better suited to their specific tasks, such as tape measures or digital measuring tools. Hence, the association of a 6-foot folding ruler with the tasks essential to linemen is particularly fitting.