Zimbabwe best selling HDA Aluminum Conductor Material and Overhead Application overhead conductor

Zimbabwe best selling HDA Aluminum Conductor Material and Overhead Application overhead conductor 

Application

All Aluminum-Alloy Conductors (AAAC) can be used in Medium, High and Extra-High voltage transmission lines. AAAC offers better sag performance due to the high strength-to-weight ratio provided by the aluminum-alloy. In addition, AAAC provides a higher corrosion resistance than ACSR conductors.

Construction
Standard 6201-T81 high strength aluminum conductors, conforming to IEC61089 Specification, are concentric-lay- stranded, similar in construction and appearance to 1350 grade aluminum conductors. Standard 6201 alloy conductors are similar to other alloy conductors commercially known as Ardival, Aldrey or Almelec. They were developed to fill the need for an economical conductor for overhead applications requiring higher strength than that obtainable with 1350 grade aluminum conductors, but without a steel core. The DC resistance at 20°C of the 6201-T81 conductors and of the standard ACSR of the same diameter are approximately the same. Conductors of the 6201-T81 alloys are harder and, therefore, have a greater resistance to abrasion than conductors of 1350-H19 grade aluminum.

Application

All Aluminum-Alloy Conductors (AAAC) can be supplied to meet various International Standards as follows:
IEC 61089
ASTM B 399
BS EN 50182
DIN 48201
However, TBEA can also supply a range of alternative designs to meet customer-specified requirements.