ACSS conductors are similar to conventional ACSR with some very important additional advantages. ACSS can operate continuously at high temperatures up to 250Ë?C without damage, allowing for a significant increase in conductor current-carrying capacity. ACSS sags less under emergency electrical loading than ACSR, it is self-damping, and its final sags are not affected by long-term creep of the aluminum. 1.improved conductivity 2.better self-damping property 3.very low sag at high temperature 4.high current carrying capacity 5.excellent immunity to vibration fatigue 6.long term creep of aluminum does not affect final sag