<![CDATA[The rapid industrial growth in strategic zones demands a highly reliable electricity supply system. However, existing 500 kV Extra High Voltage transmission lines equipped with traditional ACSR conductors often face critical challenges, including limited transmission capacity, significant power losses, and excessive sagging due to material degradation. This study investigates the effectiveness of reconductoring a 12.13 km segment of a 500 kV transmission network using High-Temperature Low-Sag (HTLS) Aluminium Conductor Composite Core (ACCC) technology. Employing a qualitative descriptive method with a case study approach, data were gathered through field observations and technical documentation analysis. The results demonstrate that replacing the legacy ACSR conductors with ACCC Amsterdam conductors significantly enhances network performance without the need for new tower infrastructure. Specifically, the transmission capacity increased from 1500 A to 2250 A (a 1.5-fold improvement), while power losses were reduced by up to 10%. Furthermore, the ACCC conductors maintained voltage stability with drops not exceeding 5% and operated safely at a maximum operating temperature of 160°C, effectively mitigating sagging issues. The reconductoring process proved to be a highly cost- and time-efficient strategy compared to building new transmission lines. In conclusion, utilizing ACCC conductors for 500 kV transmission upgrades provides a robust solution to optimize power supply reliability and efficiency, fully supporting the escalating energy demands of heavy industrial areas]]>
