Group 1 - The article discusses the preparations and responsibilities of the power supply company in ensuring reliable electricity during the festive season, highlighting the importance of underground cable inspections [19][20] - The company has over 2500 kilometers of underground power cables in Chengdu, with inspections conducted every three months, requiring personnel to walk several kilometers daily in challenging conditions [19][20] - Advanced technology, such as high-voltage cable monitoring devices and various sensors, has been implemented to enhance the efficiency and accuracy of inspections, shifting from reactive to proactive maintenance [20] Group 2 - The underground space at Tianfu Square houses a significant 220 kV substation that supplies power to busy commercial areas, emphasizing the critical role of infrastructure in supporting urban festivities [19] - The article illustrates the teamwork and coordination among inspection personnel, showcasing their commitment to safety and operational efficiency during the busy holiday period [19][20] - The use of smart monitoring devices allows for continuous data collection, improving the detection of potential hazards and ensuring the reliability of the power supply [20]

Core Insights - The article highlights the importance of underground cable inspections in ensuring reliable electricity supply during festive seasons, particularly in Chengdu's Tianfu Square [1][2] - The integration of technology in inspection processes has significantly improved the efficiency and accuracy of identifying potential hazards [2] Group 1: Inspection Process - The underground cable inspection team conducts regular checks every three months, covering over 2500 kilometers of underground power cables in Chengdu [1] - Inspection personnel walk three to four kilometers daily in confined, humid conditions to ensure the safety and functionality of the cables [1] Group 2: Technological Advancements - The use of advanced monitoring devices, such as high-voltage cable condition monitoring instruments and various online monitoring systems, has enhanced data collection and hazard detection [2] - The implementation of smart sensors allows for continuous data gathering, shifting the inspection approach from reactive to proactive [2]