Sag is a critical consideration in overhead line design and installation to ensure safety and prevent conductor failure. Our equipment is specifically designed to manage and control sag. Methods include:

• Proper Sag-Tension Calculations: Engineers use sag-tension charts to calculate the correct tension and sag values for a given span length, conductor type, and expected weather conditions. This is a vital step in the design phase.

• Tension Stringing Equipment: Using specialized tension stringing equipment, such as that manufactured by Ningbo Changshi, allows for precise control of the tension applied to the conductor during installation. This ensures the sag is within safe and specified limits.

• Material Selection: Utilizing conductors with a lower coefficient of thermal expansion or stronger core materials, such as our ACSR (Aluminum Conductor Steel Reinforced) line equipment, can help minimize sag variations caused by temperature changes.

• Maintenance and Monitoring: Regular inspections and, in some cases, dynamic line rating systems, can monitor real-time sag and temperature, allowing for proactive maintenance to prevent excessive sag.