What must lighting track be protected against when installed below 5 feet above the floor?

When lighting track is installed below 5 feet above the floor, it must be protected against physical damage. This is crucial because installations at lower heights are more susceptible to being bumped into or interacted with by people or objects in the space, leading to potential damage to the wiring or fixtures.

Physical damage could compromise the safety and functionality of the lighting system, potentially resulting in electrical hazards, outages, or even fires. Therefore, the installation must either have a protective enclosure or be located in a way that minimizes the risk of such damage, ensuring the longevity and safety of the lighting system.

Other considerations like electrical shock, heat sources, and moisture are also important in specific contexts, but they do not specifically address the unique concerns related to the height installation, which primarily focus on protecting against accidents common in lower areas.