How do advanced conductors and dynamic line rating (DLR) technologies improve the capacity of existing long-distance transmission lines?

2025-08-17

Upgrading existing infrastructure is a cost-effective way to enhance long-distance transmission capacity without building entirely new lines. Two key technologies enable this:

  • Advanced Conductors: Conductors like High-Temperature Low-Sag (HTLS) and Aluminum Conductor Composite Core (ACCC) have superior strength-to-weight ratios and can carry more current at higher temperatures. This means they can be installed on existing towers to significantly boost power transmission capacity.

  • Dynamic Line Rating (DLR): DLR uses real-time weather data (temperature, wind speed) to calculate the actual, safe capacity of a line at any given moment. This often reveals that lines can carry more power than their static, conservative rating, especially on windy or cool days.

At Ningbo Changshi, we provide the specialized stringing equipment and reconductoring tools needed for these upgrades. Our hydraulic equipment is perfectly suited for tension stringing new, high-performance conductors onto existing towers, allowing for a seamless transition to more efficient, higher-capacity lines.

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