OSP Construction and Installation
Core concepts
Construction questions test sequencing and physical execution: trenching versus plowing versus directional boring, duct and innerduct installation, aerial strand and lashing, pole attachment, and restoration. Candidates must understand pull tension limits, bend radius minimums, and the difference between installation and operational limits. Know how to protect cable at road crossings, how to handle slack loops, and how to document as-built conditions.
Traps to watch
The most common trap is applying the operational bend radius during installation; installation limits are typically stricter. Another is confusing pulling tension limits for fiber with those for copper. Questions may also test whether a crew should stop work when encountering unmarked utilities; the correct answer is to stop and verify, not to proceed carefully. Watch for confusion between temporary and permanent restoration requirements.
Worked rule of thumb
Use a tension check before every pull. If a cable has a 2,700 N limit and the route has three bends, estimate added tension per bend and compare against the limit before starting. If the estimate exceeds 80% of the limit, reduce pull length or add intermediate assist. Record the pull, tension, and weather in the daily log. This mirrors real inspection practice and answers questions about when to stop a pull.