Which is the minimum height the ends of the conduit must penetrate above grade?

The minimum height the ends of the conduit must penetrate above grade is 2 inches. This standard is established to ensure that the conduit is above potential ground disturbances, such as snow, landscaping, or water accumulation, which could lead to moisture entering the conduit or possibly damaging the electrical systems within. A height of 2 inches provides a sufficient clearance to keep the termination points of the conduit safe from these environmental factors.

Maintaining this minimum height is also important for accessibility and maintenance purposes, allowing for easy identification and access to the conduit system without having to dig or disturb the surrounding area. Adhering to this height requirement is essential for the safety and longevity of the electrical installations.