Answer: Conductor sag is a critical issue in overhead transmission lines that affects safety and clearance. The primary causes are the conductor's own weight, temperature changes (thermal expansion), and external loads from wind and ice. Over time, a phenomenon known as rheological degradation also causes the conductor material to stretch, leading to permanent sag.

As a leader in power line equipment, we at Ningbo Changshi offer advanced tools to manage this challenge. Our tension stringing equipment is designed for precise conductor installation, ensuring proper initial sag and tension. We also provide specialized tools for regular maintenance and sag-tension adjustments to maintain safe ground clearance and prevent failures, thereby extending the service life of your infrastructure.