AAAC are made out of high strength Aluminum-Magnesium-Silicon alloy.
AAAC with different variants of electrical grade Alloys type 6101 and 6201.
These conductors are designed to get better strength to weight ratio and offers improved electrical characteristics, excellent sag-tension characteristics and superior corrosion resistance when compared with ACSR.
Equivalent aluminum alloy conductors have approximately the same ampacity and strength as their ACSR counterparts with a much improved strength-to-weight ratio, and also exhibit substantially better electrical loss characteristics than their equivalent single layer ACSR constructions. The thermal coefficient of expansion is greater than that of ACSR.
As compared to conventional ACSR, lighter weight, comparable strength & current carrying capacity, lower electrical losses and superior corrosion resistance have given AAAC a wide acceptance in the distribution and transmission lines.
Features
High strength to weight ratio
Better sag characteristics
Improved electrical properties
Excellent resistance to corrosion
Specifications
Higher Tensile Strength
Excellent Corrosion Resistance
Good Strength to Weight Ratio
Lower Electrical Losses
Moderate Conductivity –52.5% IACS
Typical Application
Transmission and Distribution applications in corrosive environments, ACSR replacement.
ACSR (Aluminum Conductor Steel Reinforced)
Aluminum Conductor Steel Reinforced (ACSR) is concentrically stranded conductor with one or more layers of hard drawn 1350-H19 aluminum wire on galvanized steel wire core.
The core can be single wire or stranded depending on the size.
Steel wire core is available in Class A ,B or Class C galvanization for corrosion protection.
Additional corrosion protection is available through the application of grease to the core or infusion of the complete cable with grease.
The proportion of steel and aluminum 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 favorable strength / weight ratio. ACSR conductors combine the light weight and good conductivity of aluminum 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.
The steel strands are added as mechanical reinforcements.
ACSR conductors are recognized for their record of economy, dependability and favorable strength / weight ratio.
ACSR conductors combine the light weight and good conductivity of aluminum 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.
The steel strands are added as mechanical reinforcements.
The cross sections above illustrate some common stranding.
The steel core wires are protected from corrosion by galvanizing.
The standard Class A zinc coating is usually adequate for ordinary environments.
For greater protection, Class B and C galvanized coatings may be specified.
The product is available with conductor corrosion resistant inhibitor treatment applied to the central steel component.
Features
High Tensile strength
Better sag properties
Economic design
Suitable for remote applications involving long spans
Good Ampacity
Good Thermal Characteristics
High Strength to Weight Ratio
Low sag
High Tensile Strength
Typical Application
Commonly used for both transmission and distribution circuits.
Compact Aluminum Conductors, Steel Reinforced (ACSR) are used for overhead distribution and transmission lines.
