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

The minimum clearance between a power's secondary conductor and a fiber-optic cable in a cable span is specified at 30 inches. This requirement is set to ensure safety and prevent electromagnetic interference that could affect the performance of the fiber-optic cable.

Fiber-optic cables are sensitive to interference from nearby electrical conductors, particularly those carrying high voltage or current. Maintaining an adequate distance helps to minimize any potential disruptions and maintains the integrity of the data transmission over the fiber-optic lines. This clearance is also essential for physical safety, ensuring that there is a sufficient distance to avoid hazards if there are any shifts in the cable positions due to environmental factors or operational activities.

Understanding this requirement is critical for construction coordinators to ensure compliance with safety standards and to mitigate any risks associated with the installation and operation of these types of cables.