Aluminum conductor steel-reinforced cable (ACSR cable) is a specific type of high-capacity, high-strength stranded cable typically used in overhead power lines. The outer strands are aluminum, chosen for its excellent conductivity, low weight and low cost. The center strand is of steel for the strength required to support the weight without stretching the aluminum due to its ductility. This gives the cable an overall high tensile strength.
ACSR cables are available in several specific sizes, with multiple center steel wires and correspondingly larger quantities of aluminum conductors. For example, an ACSR cable with 72 aluminum conductors that requires a core of 7 steel conductors will be called 72/7 ACSR cable.
The higher resistance of the steel core is of little consequence to the transmission of electricity in large diameter conductors since it is located below the skin depth where only a small amount of AC current flows.
All Aluminum Alloy Conductor (AAAC cable) is made from aluminum-magnesium-silicon alloy of high electrical conductivity containing enough magnesium silicide to give it better mechanical properties after treatment. These conductors are generally made out of aluminum alloy 6201. AAAC CONDUCTOR has a better corrosion resistance and better strength to weight ratio and improved electrical conductivity than ACSR CONDUCTOR on equal diameter basis.
AAAC (All Aluminum Alloy Conductor) referred to have higher strength but lower conductivity than pure aluminum. Being lighter, alloy conductors can sometimes be used to advantage in place of the more conventional ACSR. Having lower breaking loads than the latter, their use becomes particularly favorable when ice and win loadings are low.
The standards applied to AAAC cable in different region are BS EN50182, DIN 48201 Part 6, BS 3242, ASTM B399.
All Aluminum Conductor (AAC cable) is made from aluminum-magnesium-silicon alloy of high electrical conductivity containing magnesium (0.6-0.9%) & silicon (0.5-0.9%) to give it better mechanical properties after treatment. AAC conductors are generally made out of aluminum alloy 6201 (minimum conductivity is 54%). AAC conductor has a better corrosion resistance and better strength to weight ratio and improved electrical conductivity than ACSR conductor on equal diameter basis.
The standards applied to AAC cable in different region are BS 215 and ASTM B231.