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The common type of cable conductor

Cable selection is about choosing the appropriate type of conductor and selecting a suitable size/cross-section area/ diameter of the conductor according to the application.

Types of Conductor:

Based on physical structure, conductors are either stranded (multiple thin wires) or solid (solid metal wire). Cable types (conductors) which are used in transmission lines are:

ACSR (Aluminum Conductor, Steel Reinforced): It consists of steel strands surrounded by aluminum strands. It is the most recommended conductor for transmission lines and used for longer spans.

ACAR (Aluminum Conductor, Alloy Reinforced): It consists of aluminum-magnesium silicon alloy surrounded by the aluminum conductor. It has high mechanical strength and conductivity than ACSR, so it can be used for distribution and transmission on a large scale, but it is more expensive.

AAC (All Aluminum Conductor): It is also known as ASC (Aluminum Stranded Conductor) and has a conductivity of 61% IACS. Though it has good conductivity, still it is limited in its applications cause of low strength.

AAAC (All Aluminum Alloy Conductor): It is made up of aluminum-magnesium-silicon alloy and has a conductivity of 52.5% IACS. Because of better strength, it can be used for distribution but not suggested for transmission. It is suitable to be used in areas with high moisture content.
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