Which method avoids exceeding the pulling tension specification during underground installations?

The method of using a midpoint pull and intermediate pull is ideal for avoiding the excessive pulling tension specification during underground installations because it effectively distributes the tension throughout the length of the fibers being installed.

In a midpoint pull, the pulling force is applied at the midpoint of the cable run, effectively splitting the tension and minimizing stress at any single point. This approach allows for increased control over the tension experienced by the cable, reducing the likelihood of damage. The intermediate pull, on the other hand, involves making adjustments at intervals along the cable run, which further disperses the pulling force and provides opportunities to reduce tension buildup.

Implementing these two techniques ensures that the cable is installed safely, adheres to manufacturer specifications, and prevents issues like micro bends or breaks in the fiber, which can occur if the pulling tension is too high. These methods are widely recognized as best practices within the industry to maintain the integrity and performance of fiber optic cables during installation.