What is the primary difference between tension stringing and slack stringing for overhead lines?

2025-08-12

Tension stringing and slack stringing are two distinct methods for installing conductors on overhead transmission lines. The key difference lies in how the conductor is managed during the installation process.

  • Tension Stringing: This is the most common and preferred method for modern power line projects. It uses specialized equipment, like our hydraulic puller and OHTLstringingequipment.com/Hydraulic-Conductor-Tensioners.html target='_blank'>Tensioner machines, to keep the conductor elevated and clear of the ground and any obstacles throughout the entire process. This method significantly reduces the risk of damage to the conductor, insulators, and other components, while also improving safety and efficiency.

  • Slack Stringing: This older method involves pulling the conductor along the ground. It is only suitable for low-voltage or low-importance lines in areas with clear rights-of-way, as the conductor is more susceptible to damage from rocks, vegetation, and other ground hazards. It is also a less safe method, especially when crossing existing infrastructure.

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