The Aluminium Conductor Steel Supported (ACSS) represents a category of High-Temperature-Low-Sag (HTLS) conductors, offering distinct advantages over conventional ACSR conductors. ACSS conductors feature the incorporation of 1350-O annealed aluminium wires in contrast to the standard 1350-H19 variant used in ACSR conductors. This substitution results in noteworthy enhancements. Notably, annealed aluminium wires boast a higher electrical conductivity of 63% IACS, compared to the 61.2% IACS conductivity of drawn, hardened aluminium wires utilized in ACSR conductors. Consequently, ACSS conductors are capable of carrying increased electrical current.
ACSS/GA
The ACSS/GA conductor is a kind of High-Temperature Low-Sag conductors. The most important difference between ACSS conductors compared to ACSR conductors is the use of 1350-O annealed aluminum wires instead of hard-drawn 1350-H aluminum wires which enhances the current-carrying capacity and operating temperature of these conductors.
ACSS/MA
ACSS/MA conductors are made of round aluminium wires stranded around a steel core. The steel core in ACSS/MA consists of Galfan-Coated steel wires. Galfan is composed of Zinc - %5 Aluminium - Mischmetal which enhances the corrosion resistivity of the core. The use of Galfan-Coated steel wires improves the lifespan and operating temperature of ACSS/MA conductors.
ACSS/AW
ACSS/AW conductors, employing aluminium-clad steel wires in their core, boast higher electrical conductivity and improved corrosion resistance compared to ACSS/GA and ACSS/MA conductors. Compared to both ACSS/GA and ACSS/MA types, the ACSS/AW can operate at higher temperatures as the adhesion between the substrate and the coating is higher for aluminium-clad steel.
