Which factor is NOT a concern for the installation of optical fiber?

The installation of optical fiber is uniquely influenced by specific factors that need to be carefully considered to ensure optimal performance and longevity of the fiber. Among these factors, electrical interference is not a concern for optical fiber because it transmits data through light rather than electrical signals. As a result, optical fibers are inherently immune to electromagnetic interference (EMI), which can affect copper cables.

In contrast, physical bends in the fiber can lead to signal loss or damage, as excessive bending can exceed the fiber's minimum bend radius. Moisture exposure is a significant concern since it can degrade the integrity of the fiber and its protective coatings, potentially causing signal attenuation. Proper termination is crucial in optical fiber installations because incorrect termination can result in increased insertion loss, reflection, and ultimately unreliable performance of the communication link.

Understanding these specifics underlines why electrical interference is not a factor for optical fiber installations while the other options highlight important concerns that must be addressed to ensure a successful deployment of optical fiber systems.