What height is noted as "75' or lower" designated in OSP terms?

In Outside Plant (OSP) terminology, the designation of "75' or lower" corresponds to the Zone Cone. This term is used to define specific areas in a structured environment where certain conditions and limitations apply, particularly concerning telecommunication infrastructure and the installation of aerial or underground systems.

The Zone Cone represents a vertical and horizontal space where the presence of any overhead facilities or potential obstructions must be considered when planning and executing installation and maintenance activities. It is crucial to adhere to these designations to ensure compliance with safety standards and to prevent interference with existing installations.

By defining this height category, OSP designers can better plan for necessary clearances in their network designs, which is essential for maintaining service reliability and accessibility. Understanding the different zones is fundamental in ensuring that network installations meet regulatory requirements and operational practicality.