Sanmenxia, Henan: Non-Outage Operations Strengthen Power Supply Reliability

To improve power supply reliability and the customer experience, State Grid Sanmenxia Power Supply Company has recently been strengthening its capacity for non-outage operations. It has focused on improving distribution network maintenance methods and taken multiple measures to enhance non-outage operations and emergency power supply capabilities, minimize the impact of outages on customers, and ensure a reliable power supply for users in the region.

State Grid Sanmenxia Power Supply Company has improved its joint review mechanism for outage plans across multiple disciplines, optimizing more than 300 plans and shifting from "reactive response" to "proactive management". It has established an integrated closed-loop system covering settlement, safety and auditing. It integrates screenshots documenting safety controls, dispatch plans and work tickets as supporting documentation and uses blockchain to preserve evidence. The settlement review approval rate has reached 100%.

The company has deployed new equipment, including motorized insulated platforms and robots for live-line work, on 63 occasions, significantly improving its ability to work in complex terrain and high-risk environments. By the end of October, it had completed 3,667 non-outage operations, avoiding more than 170,000 customer-hours of power interruptions. It recorded 21.96 operations per 100 kilometers of distribution lines, while complex non-outage operations accounted for 15.9% of the total. The company remained among the leading performers in Henan Province.

Going forward, State Grid Sanmenxia Power Supply Company will continue to strengthen its operational capabilities and develop a combined working method using robots, insulated platforms and insulating rods. It will further improve its management system and require priority to be given to live-line work at the project feasibility study and preliminary design stages. It will continue to promote solutions combining live-line work, bypass power supply and generator trucks, and strengthen joint reviews involving its distribution network department, county-level distribution dispatch teams, and personnel responsible for live-line work at the district and county levels. It will implement fully online, closed-loop management of work plans at every stage and use digital tools to strengthen management oversight at all levels, supporting local economic and social development with a reliable power supply.