Which of the following is NOT a function of the electric operating code?

The correct answer identifies a function that falls outside the primary responsibilities outlined by the electric operating code. The electric operating code primarily focuses on ensuring safety and operational guidelines for the construction, maintenance, and testing of electrical systems, apparatus, and lines.

The operation of non-electrical equipment does not typically fall under the scope of the electric operating code, as its guidelines are specifically designed for electrical systems. This means activities directly related to electrical lines, apparatus, and their testing are covered, while the operational standards for equipment that does not involve electricity are managed by different regulatory or operational standards outside the electric operating code.

In contrast, the construction of electrical lines, maintenance of communication cables, and testing of electrical apparatus are all critical functions that ensure the integrity, safety, and effective operation of electrical systems. These activities are essential for maintaining reliable electrical service and preventing hazards related to electrical operations.