Overhead lines

Power Overhead lines

  • Aluminum conductor, steel or composite reinforced, all aluminum alloy conductors, and other overhead conductors.
  • New thermo-resistant conductors operate up to 220°C without increasing sag, and reducing tension on towers.
  • Nexans has also developed a new generation of insulated aerial lines.


Nexans provides an increasing number of power utilities worldwide with high temperature HV conductors, which allow higher transmission capacities compared to traditional conductors. Also, to prevent the theft of electricity in Argentina and Brazil, Nexans designed a concentric “anti-robbery” cable which has allowed power utilities to recoup 15% of lost output.


Related products and solutions


Bare Copper conductors
Outdoor Energy cables/Overhead lines

Copper cords for overheadlines installed close the seas and/or poluted areas due to higher resistance to support environmental agressivity than Aluminium conductors.
 

Cross-sections from 16 mm² to 600 mm². .

   
Compact conductors
Outdoor Energy cables/Overhead lines/Bare Aluminium cables

Special design of wires in "Z" or trapezoidal shape instead of the standard round wires.

The main advantage is the less voids among wires increasing the conductivity by 15% to 18% of the conductor considering the same diameter.

Additionally, the AeroZ with "Z" shape wires has a better aerodinamic performance with lower wind drag coefficient, that means, less mechanical efforts transmitted to the structures due to the wind load.

   
Aluminium conductors
Outdoor Energy cables/Overhead lines/Bare Aluminium cables

The conductors form the basic part of an overhead line because they have to carry the electrical current. The lightness and the good conductivity of the aluminium imposed this metal as the basic material.The physical and human geography promoted either of the main options : the homogeneous or the bi-metallic. Then the utility generally confirmed, by care of homogeneity, the initial choice during the expansions of its networks.

The conductors for the bare overhead lines of the distribution and transport networks are classified in six main families :

  • the homogeneous conductors in pure aluminium (AAC)
  • the bi-metallic conductors in aluminium and zinc coated steel (ACSR)
  • the bi-metallic conductors in aluminium and aluminium-clad steel (ACSR/AW)
  • the homogeneous conductors in aluminium alloy (AAAC)
  • the bi-metallic conductors in aluminium ...