High-Temperature Low-Sag (HTLS) conductors continue to gain traction in 2025 as utilities look to increase corridor capacity without constructing new towers. HTLS technologies (including composite-core conductors) allow higher operating temperatures, increased ampacity and reduced sag compared with traditional ACSR conductors.

Key reasons for adoption
• Capacity uprate without major civil works — utilities can carry more current on existing right-of-way.
• Lower line losses and improved grid reliability when paired with dynamic line rating.
• Compatibility with reconductoring strategies for urban and congested corridors.

What contractors and equipment suppliers must consider
• HTLS conductors often need specialized grips, OHTLstringingequipment.com/Hydraulic-Conductor-Tensioners.html target='_blank'>Tensioners, and controlled tension profiles to avoid core damage.
• Accurate dynamic line-rating and real-time tension monitoring during installation reduce risk.
• Contractor training and OEM maintenance support are critical because HTLS repair and splice techniques differ from conventional conductors.

Sources and trends
Recent industry reviews and research show growing HTLS adoption and an expanding range of conductor types and retrofit options. Utilities and project owners must plan equipment selection, crew training, and QA procedures to ensure safe, successful reconductoring.