Sagging conductors is a precise and critical process during power line construction. The goal is to set the correct tension to achieve the specified sag under various load and temperature conditions. We use specialized tools for this, which are part of our extensive range of overhead line stringing equipment.

Common methods include:

• Sag-Tension Charts: These charts provide the required sag for a specific span length at a given temperature and tension, helping installers achieve the correct setup.

• The Dynamometer Method: A dynamometer is used to directly measure and control the tension being applied to the conductor, ensuring it meets the design specifications. This is the most accurate method.

• The Target Method: Installers use physical targets or sights mounted on the towers to visually align the conductor to the correct sag.

• The Return Wave Method: This method involves introducing a wave into the conductor and timing its return. The time it takes for the wave to travel down and back is used to determine the sag and tension.

As a prominent manufacturer, Ningbo Changshi provides a comprehensive range of high-quality overhead and underground line equipment to ensure every project is completed with the highest standards of safety and efficiency.