What are key factors affecting fiber optic installation?

The correct answer identifies essential considerations that directly impact the performance and reliability of fiber optic installations. Temperature extremes can affect the fiber’s performance since optical fibers are constructed from glass, which can alter its characteristics if exposed to temperature variations beyond specified limits. Additionally, the bend radius is a critical factor: exceeding the minimum bend radius can lead to signal loss or even damage to the fiber. Ensuring that both of these factors are within appropriate limits helps maintain optimal signal integrity and prevents costly issues that might arise later.

When considering the other factors, while the length of installation does play a role in determining signal loss due to attenuation, it is less about basic installation techniques and more about planning and budgeting for cable runs. The color of the fiber, though relevant for identification during installation, does not influence the actual installation process or the fiber's operational capabilities. Lastly, while the cost of materials is significant for budgeting purposes, it does not have a direct impact on the physical installation practices or the performance of the fiber itself. Therefore, understanding the environmental and physical constraints, like temperature extremes and bend radius, is crucial for a successful fiber optic installation.