Core Viewpoint - The successful completion of the first "zero power outage" upgrade of the 10 kV line interval protection device by Jinchang Power Grid marks a significant breakthrough in the intelligent transformation of distribution network lines, setting a new benchmark for regional power supply reliability [1][4]. Group 1: Technological Innovations - The project represents a shift from traditional power outage modifications requiring two days to a "zero" outage approach, fundamentally avoiding power interruptions for businesses and residents [1][4]. - Key innovations include "full-process non-perception" and "parallel protection," which were achieved through a combination of "pre-execution debugging + dual protection in parallel" [1][2]. - The implementation involved a "sandbox rehearsal + platform transfer" plan, which allowed for full-step simulations of the upgrade process, ensuring precise configuration and risk management [1][2]. Group 2: Safety and Operational Standards - The design process emphasized extreme detail, with specific measurements and operational standards established to prevent compatibility issues between the new and old protection devices [2]. - A "1:1" operational simulation was conducted prior to the upgrade, identifying 12 potential hazards and ensuring strict adherence to safety protocols [2]. - The "three-fold protection" mechanism was implemented to ensure continuous protection during the upgrade, with real-time monitoring and documentation for traceability [2]. Group 3: Impact and Future Plans - The successful upgrade not only eliminated the traditional two-day downtime but also enhanced the skill set of the team, preparing them for future upgrades on ten additional lines [3][4]. - The technology is expected to be gradually promoted across the city’s aging lines, potentially reducing power outage durations by over 500 hours annually [4]. - Jinchang Power Company aims to deepen the application of non-power outage technologies, supporting local economic development and enhancing power supply quality through continuous innovation [4].