Aluminium-Magnesium-Silicon alloy with a concentrated layer is used to create stranded aluminium alloy conductors (AAAC). Midal produces many types of electrical grade alloy types 6101 and 6201 and provides them to AAAC. with one or more hard-drawn 1350 aluminium alloy strands. When compared to ACSR conductors, these conductors are made to have a better strength-to-weight ratio, better electrical characteristics, great sag-tension characteristics, and superior corrosion resistance. AAAC has gained widespread adoption in the distribution and medium and high voltage transmission lines thanks to its smaller weight, comparable strength and current carrying capacity, lower electrical losses, and improved corrosion resistance when compared to a traditional ACSR conductor.
High strength aluminium alloy conductor is an aluminium alloy product that contains the elements silicon and magnesium in addition to aluminium and, following processing, deformation, and heat treatment, acquires adequate strength, plasticity, and electrical characteristics. It is the type of aluminium alloy used in transmission lines the most frequently. High-strength aluminium alloy conductor has an IACS conductivity of 53%, is approximately twice as strong as a standard aluminium conductor, and has a single wire strength of more than 300 mpa. An aluminium alloy conductor has significant strength advantages over a standard aluminium single wire, which has a strong range of 150–170 Mpa.
The two types of heat-resistant aluminium alloys are high conductivity heat-resistant aluminium alloys with yttrium added to aluminium and heat-resistant aluminium alloys with a conductivity of 58 per cent IACS. The heat-resistant aluminium alloy can be employed as the compatible conductor since its current carrying capacity can improve by 61 to 69 per cent at 150 °C compared to 90 °C. The dynamic stability during short circuits or overload can be improved by the high-strength performance of high-strength heat-resistant aluminium alloy wire; its heat resistance can also increase thermal stability. The conductor's current carrying capacity and heat resistance can be further improved, and its long-term service temperature can be raised to 180 °C, 210 °C, and 230 °C with the help of the super heat-resistant aluminium alloy and ultra-high heat-resistant aluminium alloy that are currently being developed.
The following are some benefits of using an AAAC conductor:
1. Due to the absence of a steel core, AAAC conductors have improved corrosion resistance, even in seaside and heavily polluted industrial locations.
2. Because AAAC conductors are homogenous and do not contain high electric resistance steel, they experience less power loss than ACSR conductors.
3. Compared to ACSR cables, AAAC cables have an additional current carrying capacity (ampacity) of roughly 15–20%.
4. In comparison to ACSR's 35 BHN conductor surface, the AAAC conductor surface is 80 BHN harder. As a result, there are fewer corona losses and ratio interference at EHV due to less handling damage to the cable surface.
5. Unlike ACSR conductors, which are stable up to 75oC, AAAC are stable up to 90oC.
6. Due to the improved strength-to-weight ratio of AAAC, the span can be raised by 2 to 15%, which lowers the overall cost of the tower supports and other accessories in the transmission line system.
7. Excellent corrosion resistance is exhibited by AAAC. Due to the lack of a steel core, AAAC demonstrates high corrosion resistance, particularly in coastal and dirty industrial locations. Due to the lack of a steel core, particularly in industrialised coastal and polluted locations.
8. Since AAAC is homogenous (with all strands of Aluminium Alloy) with no steel component its resistance is less inferior in comparison to that of ACSR of the same size.
9. Since AAAC has a greater strength-to-weight ratio than other materials, the span can be raised by 2 to 15%, leading to an overall decrease in cost for towers, supports, and other accessories. cost of transmission line systems' towers, supports, and other accessories. n systems for transmission lines.
High-strength aluminium alloy conductor and heat-resistant low resistance aluminium alloy conductor have the following benefits over conventional ACSR:
1. Aluminium alloy wire has the benefits of low DC resistance, high current carrying capacity, high tensile force, and high tensile force per unit weight.
2. Aluminium alloy conductors benefit from being lightweight, having a high tensile force, and having a higher unit weight ratio when operating at the same current-carrying capacity.
These were some uses and advantages of aluminium conductors. Cabcon India is one of the largest aluminium wire rod manufacturers in India. For more information on industrial cables check out www.cabconindia.com!
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