The increasing adoption of advanced conductor materials like High-Temperature Low-Sag (HTLS) and Aluminum Conductor Composite Core (ACCC) fundamentally impacts overhead conductor stringing, demanding specialized equipment and techniques:

• HTLS (High-Temperature Low-Sag) Conductors: These conductors are designed to operate at higher temperatures and carry more current than traditional ACSR (Aluminum Conductor Steel Reinforced) conductors with minimal sag increase.

  • Impact on Stringing: They are often more sensitive to bending, crushing, and abrasion due to their specialized cores (e.g., thermal-resistant steel, invar, or carbon fiber). This requires extremely careful handling.

  • Equipment Needs:

    • Non-Metallic Lined Stringing Blocks: Absolutely essential. Our blocks feature polyurethane, nylon, or other polymer liners to prevent damage to the outer aluminum strands and sensitive core.

    • Larger Sheave Diameters: To ensure the conductor's natural bending radius is maintained, minimizing stress on the core.

    • Precision Tension Control: Our hydraulic tensioners provide continuous, smooth, and highly accurate tensioning, crucial for maintaining the conductor's integrity and achieving the precise sag specified for HTLS lines.

    • Low Back-Tension Reel Stands: To prevent the conductor from coming off the reel too quickly and potentially kinking.

• ACCC (Aluminum Conductor Composite Core) Conductors: A type of HTLS conductor utilizing a carbon fiber composite core, making it very light, strong, and thermally stable.

  • Impact on Stringing: Extremely lightweight and high strength, but the composite core is highly susceptible to impact damage and crushing. Specific procedures are needed to prevent direct contact with metal during handling.

  • Equipment Needs: All the requirements for HTLS apply, with an even greater emphasis on:

    • Specialized Grips and Running Boards: Designed to evenly distribute clamping force without damaging the outer strands or the sensitive composite core.

    • Extra Large Diameter Blocks: To accommodate their unique flexibility and protect the core.

    • Precise and Smooth Pulling/Tensioning: To prevent sudden jerks or uneven loading that could stress the composite core.

Our company specializes in manufacturing and supplying a comprehensive range of overhead conductor stringing equipment, meticulously designed and tested to safely and efficiently install these new-generation, high-performance conductors, ensuring their longevity and optimal performance.