Core Viewpoint - The company is undertaking a significant upgrade of its power distribution network by replacing old vacuum switches with smart switches that have "four remote" capabilities, enhancing the reliability and resilience of the power supply [3][4]. Group 1: Upgrade Process - The upgrade involves replacing old vacuum switches with smart switches while maintaining power supply, ensuring safety through careful insulation and handling [3]. - The operation was completed in just two hours, demonstrating efficiency in the upgrade process [3]. Group 2: Smart Switch Features - The new smart switches act as "digital sentinels," equipped with the ability to automatically detect and isolate faults, allowing for immediate restoration of power to non-fault areas [3]. - The company has already integrated 488 of these smart switches into its distribution network, contributing to a more sophisticated sensing network [3]. Group 3: Impact on the Industry - The ongoing upgrades are part of a broader strategy to enhance the digital and intelligent capabilities of the power distribution network, which is expected to support the local economy and provide more reliable electricity [4].