Core Viewpoint - The article highlights the efforts of Xinjiang Power Transmission and Transformation Company in ensuring reliable power supply during the upcoming Spring Festival, particularly through the inspection of the 750 kV Minhe line in the Taklamakan Desert [1][3]. Group 1: Project Overview - The 750 kV Minhe line, which is set to be operational in 2025, spans 283.6 kilometers and connects the Hetian 750 kV substation to the Minfeng 750 kV substation [3]. - This line is a critical component of the 750 kV ultra-high voltage ring network project around the Tarim Basin, enhancing the power supply capacity in the southern Xinjiang region by 800,000 to 1,000,000 kilowatts and increasing the renewable energy absorption capacity by 8,000,000 kilowatts [3]. Group 2: Inspection Efforts - The maintenance team, led by Wang Hongbin, conducted thorough inspections of the line, facing challenging conditions such as wind and sand, to ensure the safety and stability of the power grid during the festival [4][8]. - The team meticulously checked each component of the power line, including towers, conductors, insulators, and fittings, to identify and rectify any potential hazards [4][5]. Group 3: Commitment and Training - Wang Hongbin, with 30 years of experience in power line inspection, emphasizes the importance of thoroughness and dedication in ensuring the safety of the power supply for families during the festival [4][8]. - His apprentice, Zhao Fei, reflects on the rigorous standards set by his mentor, recognizing that every detail matters in the inspection process [5][8]. Group 4: Cultural Significance - The team is not only focused on technical tasks but also embraces the cultural significance of their work, preparing their operational base with festive decorations to celebrate the upcoming Spring Festival [8].

Core Insights - The State Grid Qinghai Electric Power Company successfully conducted ultra-high voltage live working at an altitude of 5211.5 meters near the Tangula Mountain Pass, addressing defects in the ±400 kV Chaila DC line, thereby strengthening the power supply for Tibet during the Spring Festival [1][3] Group 1 - The oxygen level at the repair site was only 40% of that at plain areas, with temperatures dropping to minus 20 degrees Celsius [3] - The use of "drone + electric lift" technology enabled efficient defect repair, setting a world record for ultra-high voltage live working at high altitudes [3] - This operation marks the first time such work has been conducted in a high-altitude area above 5000 meters in China, showcasing the country's capabilities in power grid maintenance under extreme conditions [3] Group 2 - The Qinghai-Tibet interconnected project, operational since the end of 2011, has resolved issues of winter power shortages and summer hydropower consumption difficulties in Tibet [3] - The Chaila DC segment has an average altitude exceeding 4000 meters, making maintenance extremely challenging [3] - This operation provides strong power support for local livelihood and economic development [3]

Core Viewpoint - The State Grid Corporation of China has successfully conducted the first high-altitude live working operation at an elevation of 5,211.5 meters, setting a new world record for ultra-high voltage live working at high altitudes [1][2] Group 1: Project Details - The operation took place near the Tangula Mountain Pass, specifically at tower 1382, which is at an elevation of 5,211.5 meters, and another operation was conducted at tower 1134 in the Yanshiping area at 4,691 meters, both setting new world records [2] - This operation is part of the ±400 kV Qinghai-Tibet interconnection project, which is China's first "electricity highway" into Tibet, completed in late 2011, enabling the integration of the Tibet power grid with the national grid [1] Group 2: Operational Significance - The Qinghai-Tibet interconnection project addresses the seasonal electricity shortages in Tibet, particularly during winter, and the challenges of hydropower consumption in summer [1] - The average elevation of the Chaila DC segment of the project is 4,650 meters, and it traverses permafrost, making maintenance operations extremely challenging [1] Group 3: Safety and Reliability - The operation is crucial as Tibet is currently experiencing peak electricity demand, and any minor issues could escalate into significant problems [1]

Core Viewpoint - The article highlights the proactive measures taken by the State Grid Hubei Enshi Power Supply Company to ensure the safety and stability of the power grid during a recent cold wave that caused ice accumulation on transmission lines [4][5]. Group 1: Use of Technology - The company deployed ice removal robots to efficiently clear ice from transmission lines, demonstrating the integration of advanced technology in maintenance operations [2][4]. - Various ice removal methods were employed, including heated air blowing devices, mobile direct current melting devices, and mechanical ice removal equipment, to ensure safe operation of the power lines [4]. Group 2: Manual Intervention - In addition to technological solutions, manual ice removal was necessary in certain areas, particularly where ice accumulation posed a risk of tower collapse, which could disrupt power supply to local residents [4][5]. - The company utilized "mobile ice observation teams" equipped with online ice monitoring devices to identify and address ice accumulation promptly [4][5]. Group 3: Surveillance and Monitoring - The company installed 27 online ice monitoring devices along ice-prone transmission lines and conducted regular manual inspections in 76 high-altitude areas susceptible to icing [5]. - Fixed ice observation posts were established in critical locations to ensure continuous monitoring of ice conditions, particularly in areas where microclimates and high altitudes intersect [5].

Core Viewpoint - The article highlights the proactive measures taken by the State Grid Handan City Yongnian District Power Supply Company to address equipment overheating issues and prevent seasonal power supply failures through a specialized temperature measurement activity [1] Group 1: Activity Overview - The company organized a temperature measurement activity to eliminate equipment overheating defects and prevent seasonal power supply failures [1] - Staff were divided into several inspection teams, each consisting of two members, following a "one operates, one monitors" work mode [1] - The teams strictly adhered to temperature measurement technical standards, inspecting high and low voltage side bushings, lead joints, switch contacts, and cable terminations [1] Group 2: Findings and Actions - During the activity, one equipment defect was identified, categorized as a general defect, which was rectified on the same day [1] - The company plans to enhance the inspection capabilities and defect identification skills of frontline personnel [1] - There will be a review and summary of common issues related to equipment overheating, along with an analysis of equipment operation patterns to support future maintenance work [1]

Core Viewpoint - The company has implemented emergency measures to ensure the stability and safety of the power grid in response to severe cold weather and continuous snowfall, demonstrating its commitment to social responsibility and the use of intelligent methods to enhance operational efficiency [12]. Group 1: Emergency Response - The company activated its emergency plan on December 12, organizing a service team to conduct thorough inspections and provide precise services to ensure the stable operation of the power grid [1]. - The service team focused on key equipment such as transmission lines, poles, and insulators, conducting comprehensive inspections to identify potential hazards [3]. Group 2: Support for Rural Enterprises - The service team extended its support to rural enterprises, ensuring their electricity needs were met during the severe weather, which is crucial for rural revitalization [6]. - The team not only completed power delivery tasks efficiently but also conducted safety inspections of the enterprises' internal electrical equipment [6]. Group 3: Technological Enhancements - The company utilized advanced technology for inspections, including infrared thermometers and drones, to enhance the efficiency and accuracy of monitoring power lines and equipment [9]. - Nighttime inspections were organized to address potential hazards that may arise during peak load periods, ensuring no blind spots in the monitoring process [9]. Group 4: Ongoing Monitoring and Preparedness - The company has strengthened load forecasting and power grid monitoring, maintaining a 24-hour duty system to ensure readiness for emergencies [12]. - Continuous attention to weather changes and focused inspections in mountainous and microclimate areas are part of the strategy to respond to unexpected situations [12].

Core Viewpoint - The State Grid Linfen Power Supply Company has initiated comprehensive autumn power supply assurance work to ensure the safe and stable operation of the power grid, providing reliable electricity for residents and businesses [1][4]. Group 1: Autumn Power Supply Assurance Work - The autumn season is a high-risk period for power line failures due to hanging objects and external damage, exacerbated by dry weather and agricultural activities [1][3]. - The company has increased special inspections of substations and power lines to ensure the safety and stability of the power grid [1][3]. Group 2: Equipment and Environmental Checks - Staff conducted thorough inspections of equipment using temperature measuring tools, checking for overheating, rust, and loose bolts to ensure the health of the equipment [3]. - The company focused on inspecting insulators and hardware components of the lines to ensure they can withstand strong winds during the autumn [3]. Group 3: Community Engagement and Maintenance - The company has cleared weeds and branches under power lines to reduce the likelihood of hanging object failures and has communicated with local villagers to protect power grid facilities during the harvest season [3]. - Regular maintenance and testing of equipment have been strengthened, along with employee training to enhance safety awareness and operational skills [3][4]. Group 4: Future Plans - The company plans to closely monitor the power grid's operational status and implement stricter measures and practical approaches to enhance autumn maintenance work [4]. - There will be an increased application of intelligent inspection technologies to improve the efficiency and quality of maintenance work, providing a solid power guarantee for local economic and social development [4].

Core Points - A 4.2 magnitude earthquake occurred near Xiangfen County, Linfen City, with a depth of 19 kilometers, causing strong tremors in multiple areas [1] - The State Grid Linfen Power Supply Company promptly conducted thorough inspections of key electrical infrastructure following the earthquake [1][2] Group 1 - The company prioritized checking substations and transmission lines for any damage or abnormalities [1] - Inspections included assessing the stability of tower foundations, equipment alignment, and the condition of critical components such as transformers and circuit breakers [1] - The company utilized infrared thermometers to detect potential overheating or contact issues in electrical connections [1] Group 2 - As of now, the company has completed the first round of post-earthquake inspections and found no damage to equipment or facilities, ensuring stable grid operation [2] - The company plans to maintain close monitoring of the situation and enhance surveillance of important substations and key equipment [2] - Emergency response teams and materials are on standby to ensure rapid response in case of further incidents, aiming to provide robust power supply for the community [2]

Core Viewpoint - The article highlights the dedication and expertise of a power distribution technician, Xia Jun, who has been involved in ensuring reliable power supply during critical examination periods for thirteen years, emphasizing the importance of proactive maintenance and monitoring in the power distribution sector [1][4]. Group 1: Operational Excellence - Xia Jun has participated in 13 years of power supply assurance for examinations, demonstrating a commitment to maintaining the reliability of the power grid [1]. - He has identified 26 equipment defect risks and led the resolution of 18 key issues, including overload and voltage problems, showcasing his proactive approach to operational challenges [2]. - The use of advanced monitoring tools and data analysis allows for precise identification of weak points in the power supply system, enhancing overall reliability [3]. Group 2: Professional Development - Xia Jun progressed from a novice to a senior technician and top skill expert over seven years, reflecting the importance of experience and continuous learning in the industry [3]. - His meticulous planning includes conducting thorough inspections and developing tailored power supply plans for each examination site, ensuring comprehensive preparedness [3]. - The reliability of the power distribution network in his jurisdiction has improved year-on-year under his leadership, indicating effective management and technical expertise [3]. Group 3: Commitment to Service - Xia Jun embodies the spirit of a dedicated technician and a responsible party member, consistently prioritizing the safety and reliability of power supply for students during examinations [4]. - His approach to maintenance is likened to that of a doctor diagnosing and treating equipment issues, emphasizing the critical nature of his role in the power distribution industry [2]. - The article concludes with a reflection on Xia Jun's unwavering commitment to his duties, highlighting the importance of such dedication in ensuring public service reliability [4].