Group 1 - The successful electrification of the Xi'an Extension High-speed Railway marks a significant milestone in the construction process, enabling subsequent hot sliding tests and joint debugging [1][2] - The electrification involves connecting the entire power supply contact network to a high voltage of 27.5kV, which is 125 times the standard household voltage of 220V, providing continuous power for high-speed train operations [1] - The project involved meticulous verification of equipment parameters to ensure compliance with electrification standards, demonstrating the reliability of the entire power supply system [1][2] Group 2 - The Xi'an Railway Bureau, in collaboration with the Xi'an Extension Company and the China Railway First Survey and Design Institute, organized a meeting to develop a comprehensive electrification plan, ensuring safety and technical coordination [2] - The Xi'an Extension Company closely monitored key parameters such as voltage and current during the electrification process, confirming that all parameters met design requirements [2] - Prior to electrification, the China Railway Wuhan Electrification Bureau and the China Railway Electrification Bureau completed essential preparatory work, including the installation and testing of equipment, ensuring the safety and stability of the power supply system [2]