Bare AAAC 1144mm² Overhead Line Conductor, 91 Strands 4mm Aluminium Alloy Wire Stranded Conductor for Power Transmission, Distribution and Substation Projects

Application

Overhead lines, sometimes referred to as aerial conductors, are often specified where there are significant distances to cover and where these cables are best positioned far out of reach. The distances to cover, the environmental conditions it will face, and the location are all factors in specifying the appropriate cable. The main classifications of bare conductor are AAC (All aluminum conductor), AAAC (All aluminum Alloy Conductor) or ACSR (aluminum conductor steel reinforced). AAC is most commonly found in urban areas with frequent supports and short spans. It is also used in coastal regions where salt in the air can cause corrosion - the all aluminum wire providing corrosion resistance - and specified for use in the railway industry for OHL electrification. AAAC tend to be specified where greater mechanical resistance is required and where there is a reduced sag characteristic. The ACSR, with its steel reinforcement provides additional strength and where the spans run for larger distances, such as across rivers. The advantages of AAC, AAAC and ACSR come in their lightweight properties.