What is the distance of the second outer nonconductive barrier placed around the conductive mat?

The correct distance for the second outer nonconductive barrier placed around the conductive mat is specified as 5 feet. This distance is crucial for ensuring safety and compliance in substation environments by providing a sufficient buffer zone that minimizes the risk of electrical hazards to personnel and equipment. The nonconductive barrier helps to prevent accidental contact with the conductive mat and serves as an additional layer of protection.

Understanding the significance of this distance is important within the context of substation safety protocols, where maintaining safe distances is essential for ensuring the protection of both workers and the integrity of electrical systems. In practice, the percentage of the barrier's nonconductive nature also influences its effectiveness; thus, specifying a minimum distance like 5 feet ensures that the barrier maintains its intended purpose, reducing the risk of unintended electrical conduction in the work area.