High-Temperature Steel-Aluminum Conductors (ASHT)

for Overhead Power Transmission Lines 6-750 kV

In developing the high-temperature conductor, solutions were applied to increase the capacity of existing lines without using alloys that degrade conductivity and without complex structures that significantly increase cost. This approach is attractive from both technical and economic perspectives:

· Maximum high mechanical strength and modulus of elasticity.
· Maximum high electrical conductivity.
· Resistance to high temperatures.
· Low thermal elongation and reduced sag.
· Resistance to aging and wind effects.

The experimentally confirmed operating temperature for ASHT is 150°C. The maximum permissible temperature is 210°C.

To achieve the required thermal stability, zirconium alloys and new compaction technologies were used, along with an innovative core and overall conductor design.

In the absence of routing restrictions, the use of our conductors can lead to a 25% project cost saving due to fewer support structures required.

ASHT conductor has twice the strength;
ASHT conductor has a significantly greater long-term permissible current than, for example, AERO-Z;
and a significantly higher current-carrying capacity than AC and AERO-Z of the same diameters.

It follows that the new ASHT conductor expand the design framework for overhead lines and make it possible to solve tasks that were previously unsolvable or whose solution was associated with significant difficulties.