To eliminate potential hazards in power grid equipment and address operational shortcomings, the State Grid Yancheng Power Supply Company's Substation Maintenance Center recently completed a centralized maintenance of the 500 kV II section busbar equipment at the Yancheng 500 kV Yandu Substation, relying on an intensive "one-stop-multiple-use, concentrated-task" model. This comprehensively strengthens the safety defense line of the northern Jiangsu power grid hub and lays a solid foundation for the smooth operation of the Yancheng main grid during peak summer seasons and its long-term stable operation.cordless stick vacuum China
The 500kV Yandu substation is a core hub of the northern Jiangsu power grid. Having been in operation for over twenty years, its aging equipment has accumulated hidden dangers. Furthermore, this maintenance project faced immense challenges due to the multiple high-risk operations and dual risk management requirements. To ensure the safe, high-quality, and efficient progress of the maintenance, the State Grid Yancheng Power Supply Company's Substation Maintenance Center made comprehensive arrangements a month in advance, conducting thorough on-site surveys and risk assessments. It also collaborated with multiple work teams to overcome professional barriers, meticulously analyzed key operational risks, and developed a specialized safety management plan. Simultaneously, it systematically investigated over 20 equipment defects within the substation, establishing a management ledger with "one defect, one solution; one position, one responsibility," clearly defining defect elimination standards and rectification deadlines, enabling precise and targeted maintenance efforts.Cordless Vacuum Cleaner China
Faced with intensive high-risk operations, the center adheres to the principle of Party building leading safe production, activating the red energy on site. It strictly implements the system of Party members on duty, establishing Party member vanguard posts and responsibility areas in key high-risk processes such as high-altitude and near-electricity operations, equipment hoisting, and equipment dismantling and assembly. Key Party members take the lead in strictly adhering to safety procedures and implementing control measures. The on-site safety prevention and control system has been upgraded, with near-electricity ranging alarm interlocking devices installed on special operation vehicles, achieving dual protection of "human defense + technical defense." Visual management and control display boards are set up at each work site, clearly publicizing the process flow, key risks, and prevention and control measures, ensuring that safety responsibilities are assigned to individuals and control is precisely targeted to each post, maintaining a zero-accident bottom line for safe production throughout the entire process.
This initial localized inspection served as a comprehensive test of technical capabilities. Adhering to a meticulous maintenance philosophy, the center implemented standardized operating procedures throughout the process and strictly controlled the quality of maintenance processes. Furthermore, the center insisted on a two-way empowerment approach of "maintenance + talent development," using the on-site inspection as the main training ground for young employees. Young staff were organized to deeply participate in core tasks such as high-risk operations, improving their risk identification, practical handling, and collaborative abilities in real-world scenarios. For core processes such as switchgear disassembly and assembly, the center promoted deep integration of primary and secondary specialties, refining collaborative processes and significantly improving equipment health levels, striving to create a benchmark for localized 500kV equipment maintenance. The center is committed to forging a multi-skilled maintenance talent team, solidifying the foundation of local maintenance talent.
Therefore, we must emulate the Yancheng Power Supply Company's Substation Maintenance Center by comprehensively summarizing the practical experience gained from this localized maintenance operation, continuously optimizing the maintenance management system and operational standards, strictly enforcing safety production measures, completing major overhauls of high and low voltage disconnect switches and replacing outdated equipment, significantly improving the reliability of the power grid, and safeguarding the safe and stable operation of the power grid with outstanding maintenance capabilities, thereby ensuring the high-quality development of the local power grid.
