ANAM ELECTRICAL MANUFACTURING COMPANY Alwarpet, Chennai, Tamil Nadu

ACSR scrap of steel and aluminium in an ACSR conductor can be selected based on the mechanical strength and current carrying capacity demanded by each application.ACSR conductors are recognized for their record of economy, dependability and favourable strength weight ratio. ACSR conductors combine the light weight and good conductivity of aluminium with the high tensile strength and ruggedness of steel. In line design, this can provide higher tensions, less sag, and longer span lengths than obtainable with most other types of overhead conductors.

ACSR cable is concentrically stranded conductor with one or more layers of hard drawn electrolytic grade aluminium wire on galvanized high tensile steel wire core. The core can be single wire or stranded depending on the size of the conductor. Steel core wire is galvanised for corrosion protection. The weight of zinc coating per unit length of steel core wire is dependent on the standard adopted. Additional corrosion protection is available through the application of grease to the core.

AAC cable is made from aluminum-magnesium-silicon alloy of high electrical conductivity containing Magnesium (0.6-0.9%) & Silicon (0.5-0.9%) Aluminium Alloy 6201 with minimum conductivity is the most preferred choice of matrial for this type of conductor.

All Aluminium Alloy Conductor (AAAC) is made from aluminum-magnesium-silicon alloy of high electrical conductivity containing Magnesium (0.6-0.9%) & Silicon (0.5-0.9%) Aluminium Alloy 6201 with minimum conductivity is the most preferred choice of matrial for this type of conductor. The 6201 Alloy rod of 9.5mm diameter is drawn to an intermediate size and coiled. The coil is thereafter placed in a large electrically heated furnace with forced air circulation. The coil is soaked at predetermined temperature for a fixed period of time wherein the precipitated alloying elements are brought back into solution and thereafter it is frozen in solution by quenching the coil in water without allowing the alloying elements to re-precipitate. The solutionised coil is dried and further drawn down to the final size for manufacturing the required AAAC. The solutionised coil is given time to attain required strength and care is taken to ensure that the solutionised coil does not harden more than the prescribed limit.