Sag and tension are arguably the most important mechanical parameters in overhead line design.

• Sag is the vertical distance between the conductor and the straight line connecting its support points. It's crucial because it determines the ground clearance of the line. If the sag is too great, the conductor could fall below the minimum safe clearance, creating a public safety hazard.

• Tension is the pulling force on the conductor. If the tension is too high, the conductor and its supporting structures could be overstressed and fail, especially under heavy wind or ice loads. If the tension is too low, the sag will be excessive.

Our hydraulic puller and OHTLstringingequipment.com/Hydraulic-Conductor-Tensioners.html target='_blank'>Tensioner machines are indispensable for this stage. They are precisely controlled to apply the exact tension calculated in the design, ensuring that the installed line has the correct sag and meets all safety and performance specifications.