Micro-alloyed copper overhead line conductors

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Published August 2014

Author: Fernando Nuno

Overhead line conductors are traditionally a domain for aluminium, using either steel-reinforced aluminium or aluminium alloys. Using copper for overhead lines might surprise some people because it is a substantially heavier material. Weight, however, is not the most crucial characteristic of the conductor. Its smaller section and hydrophobic coating reduce the wind and ice loads on the conductors, which makes the overhead line more resistant and resilient to weather conditions. Also, the higher conductivity of copper reduces the losses and the life cycle cost of the overhead line.

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Last update: August 7, 2024

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