What is the minimal clearance required between the power's secondary conductor and fiber-optic cable in a cable span?

The minimal clearance required between the power's secondary conductor and a fiber-optic cable in a cable span is 30 inches. This distance is established to ensure safety and to prevent any electrical interference that could potentially affect the performance of the fiber-optic system. Maintaining this clearance is essential because the secondary conductor can carry energy which, if too close, may induce voltages in the fiber-optic cable, or cause damage through electromagnetic interference.

In addition, proper separation between these types of cables is fundamental in adhering to regulatory and industry standards, which aim to promote both the functionality of communication systems and the safety of electrical installations. This underscores the significance of installing telecommunications equipment in a manner that minimizes risk, taking into account proper physical separation from electrical infrastructure.