AAC (All-Aluminum Conductor) is a type of electrical conductor made entirely of aluminum wires, with no steel or copper core. It is used in overhead power transmission and distribution lines due to its lightweight and high conductivity.
AAC (All-Aluminum Conductor) is widely used in overhead power transmission and distribution systems due to its many advantages, including its lightweight, high conductivity, and good corrosion resistance. Some common applications of AAC conductors include:
AAC conductors are frequently used in medium-voltage distribution lines to transmit electricity from substations to homes and businesses.
Although less commonly used in high-voltage transmission lines compared to other conductors like ACSR, AAC conductors are still used in some applications where high conductivity and low weight are important considerations.
AAC conductors are a popular choice for power transmission and distribution systems in rural and remote areas due to their lightweight and ease of installation.
The corrosion resistance of aluminum makes AAC conductors suitable for use in coastal areas where there is a risk of corrosion from saltwater and high humidity.
AAC conductors are also used in urban areas where the lightweight construction allows for easier installation on poles and towers in areas where space is limited.
The structure of an AAC (All-Aluminum Conductor) consists of multiple concentric layers of aluminum strands. The outermost layer comprises the largest diameter strands, and the innermost layer consists of the smallest diameter strands.
The stranding pattern of an AAC conductor is typically defined by the number and size of wires in each layer. The standard stranding patterns include seven wires in the outermost layer and either one or more wires in each subsequent layer, with the number of wires decreasing as the layers move towards the center.
The wires in each layer are helically twisted together in a direction opposite to the direction of twist of the adjacent layer. This counter-twisting helps to prevent the conductor from unraveling and provides the conductor with strength and flexibility.
The overall structure of an AAC conductor can vary depending on the application and the desired properties of the conductor. For example, some AAC conductors are designed with a central wire for added strength, while others are designed with a compact stranding pattern for increased conductivity and reduced wind resistance.
All Conductor meets or exceeds the following standards: IEC61089, BS215 part1, DIN48201 part5, ASTMB231, BS EN50182, GB/T 1179-2008.
Chinese Standard GB/T 1179-2008
|Nominal Cross Section (mm²)||Structure (No./Dia.) (No./mm)||Overall Dia. (mm)||DC Resistance at20℃(Ω/km)||Caculated Breaking Load(N)||Mass (kg/km)||Rating Current (A)|
British Standard BS215-1-70
|Code Name||Nominal Area (mm²)||Stranding Wire No. and Dia. (No./mm)||Calculated Area(mm²)||Approx Overall Dia. (mm)||Approx Weight (kg/km)||Calcualted Min. Breaking Load(KN)||Calculated D C Resistance at20oC(Ω/km)|