What is the minimum amount of slack required for splicing fiber-optic cable in underground installations?

The minimum amount of slack required for splicing fiber-optic cable in underground installations is 15 meters on both spans. This amount of slack is crucial to accommodate any movements, thermal expansion or contraction, and potential future maintenance without risking any damage to the fibers. Having adequate slack helps ensure that the cable can be handled safely during installation and repairs, reducing the chances of stress on the fiber itself. Additionally, this slack provision is essential for allowing flexibility in the cable route and ensuring proper bends within the installation environment comply with the minimum bend radius of fiber-optic cables, which helps maintain optimal performance and signal integrity.