AAA Conductors

Aluminium Alloy Conductor (AAAC) manufactured out of this aluminium alloy 6201 (minimum conductivity 54%), have a better corrosion resistance and a better strength to weight ratio. On an equal diameter basis AAAC conductors possess higher electrical conductivity than ACSR conductors.
These conductors are designed to get better strength to weight ratio and offer improved electrical properties, excellent sag-tension characteristics, and superior corrosion resistance when compared with ACSR. As compared to a conventional ACSR conductor, the lighter weight, comparable strength & current carrying capacity, lower electrical losses and superior corrosion resistance have given AAAC a wide acceptance in the distribution and medium & high voltage transmission lines.

All Aluminium alloy conductor (AAAC) contains a small percentage (about 0.6%) of silicon and magnesium elements. It provides several benefits for overhead lines.

The illustration below shows typical standard sizes and stranding patterns:

AAA Conductors Specifications:

•  Strength: About twice that of aluminium EC 1350.
•  Weight: 20% (approx.) lighter than ACSR conductor of equal diameter.
•  Corrosion resistance: It has a high resistance to atmospheric corrosion which is suitable for coastal and industrial areas.
•  Surface hardness: AAAC’s surface is significantly harder than aluminium EC 1350. It is less liable to damage during installation which is an important advantage of EHV transmission lines where corona and radio interference is a major consideration.
•  Termination: Much simpler jointing accessories required compared to ACSR.
•  AC Resistance: AAAC is a non-magnetic material. It does not exhibit the magnetic core losses found in ACSR conductor.

AAA Conductors Features:

•  High current Carrying capacity
•  Excellent resistance to corrosion
•  Ideal for use in coastal area
•  Suitable for low & medium voltage lines in urban area

Types of All Aluminium Conductors:

•  All Aluminium Alloy Conductors (AAAC) as Per IEC 1089/91 Type A2
•  All Aluminium Alloy Conductors (AAAC) as Per IEC 1089/91 Type A3
•  All Aluminium Alloy Conductors (AAAC) as Per ASTM B 399-92
•  All Aluminium Alloy Conductors (AAAC) as Per Specification-Din 48201-Part 6-1981
•  All Aluminium Alloy Conductors (AAAC) as Per BS-3242-1970
•  All Aluminium Alloy Conductors (AAAC) as Per Specification-NF C34-125-1976
•  All Aluminium Alloy Conductors (AAAC) as Per Specification-SS 424 08 12-1978
•  All Aluminium Alloy Conductors (AAAC) as Per IS 398-Part4- 1994